Check Linux OS repository settings

Prev Next

Available in VPC

NAVER Cloud Platform provides an NCP Repository specific to each Linux OS.
An NCP repository is a private repository provided by NAVER Cloud Platform for environments such as VPC private subnets where external access may not be smooth.
An NCP repository is provided for customer convenience, but the latest package may not be available.

Note

If you need the latest package for security enhancement or authentication reviews, see Q. Can I use external public mirror sites? to consider changing the settings to an external Mirror site.

OS repository types currently provided

For the OSes provided in the VPC environment, the following NCP repositories are available:

  • NAVIX 9
    9.6
  • CentOS
    7.9.2009
  • Rocky Linux
    8.10
    9.5 | 9.6 | 9.7
  • Ubuntu
    18.04 | 20.04 | 22.04 | 24.04

Repository synchronization cycle

OS Repository synchronization is carried out 1 time per quarter.
OS Repository is updated to the latest status at the beginning of each quarter (March, June, September, and December). Updates are carried out with the aim of ensuring that synchronization begins on the 1st Monday of the last month of each quarter and ends by the 1st Wednesday.

Check the repository settings for Linux OS

To check the repository settings for each Linux OS, follow these steps:

CentOS

For CentOS, the repository configuration file is under the /etc/yum.repos.d directory.
The base URL of the NCP repository is http://repo.ncloud.com/centos.

  1. Remotely access the server you want to check the repository information of.
  2. Check the repository information set on the server.
    [root@centos78 ~]# grep ^baseurl /etc/yum.repos.d/CentOS-Base.repo
baseurl=http://mirror.ncloud.com/centos/$releasever/os/$basearch
baseurl=http://mirror.ncloud.com/centos/$releasever/updates/$basearch/
baseurl=http://mirror.ncloud.com/centos/$releasever/extras/$basearch/
baseurl=http://mirror.ncloud.com/centos/$releasever/centosplus/$basearch/
baseurl=http://mirror.ncloud.com/centos/$releasever/contrib/$basearch/
  3. Currently, the base URL for CentOS is http://mirror.ncloud.com/centos, but we recommend using http://repo.ncloud.com/centos.
    [root@centos78 ~]# sed -i 's|^baseurl=http://mirror.ncloud.com|baseurl=http://repo.ncloud.com|' /etc/yum.repos.d/CentOS-Base.repo
  4. Check the changed repository information.
    [root@centos78 ~]# grep ^baseurl /etc/yum.repos.d/CentOS-Base.repo
baseurl=http://repo.ncloud.com/centos/$releasever/os/$basearch
baseurl=http://repo.ncloud.com/centos/$releasever/updates/$basearch/
baseurl=http://repo.ncloud.com/centos/$releasever/extras/$basearch/
baseurl=http://repo.ncloud.com/centos/$releasever/centosplus/$basearch/
baseurl=http://repo.ncloud.com/centos/$releasever/contrib/$basearch/

Rocky Linux 8

For Rocky Linux, the repository configuration file is under the /etc/yum.repos.d directory.
The base URL of the NCP repository is http://repo.ncloud.com/rocky.

  1. Remotely access the server you want to check the repository information of.
  2. Check the repository information connected to the server.
    [root@kvm-rockylinux810 ~]# grep ^baseurl /etc/yum.repos.d/Rocky-{BaseOS,AppStream,Extras}.repo
/etc/yum.repos.d/Rocky-BaseOS.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/BaseOS/$basearch/os/
/etc/yum.repos.d/Rocky-AppStream.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/AppStream/$basearch/os/
/etc/yum.repos.d/Rocky-Extras.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/extras/$basearch/os/
  3. (Option) If the results of the commands in step 2 differ and the Rocky-Extras.repo file doesn't exist, download the corresponding configuration file.
    Note

    As mentioned in Repository FAQs, if you're experiencing a pause in Extras during the dnf commands after the dnf update, you can prevent this by downloading the Rocky-Extras.repo file.

    [root@kvm-rockylinux810 ~]# wget -O /etc/yum.repos.d/Rocky-Extras.repo http://init.ncloud.com/server/linux/repo/rocky8/Rocky-Extras.repo

[root@kvm-rockylinux810 ~]# grep ^baseurl /etc/yum.repos.d/Rocky-{BaseOS,AppStream,Extras}.repo
/etc/yum.repos.d/Rocky-BaseOS.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/BaseOS/$basearch/os/
/etc/yum.repos.d/Rocky-AppStream.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/AppStream/$basearch/os/
/etc/yum.repos.d/Rocky-Extras.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/extras/$basearch/os/
  4. Rocky Linux 8 is configured to only refer to the repository packages of the corresponding OS version. To change the configuration to refer to packages or kernels from higher versions, follow these steps:
    Note

    To ensure compatibility with other NAVER Cloud Platform services, the DNF configuration of the Rocky Linux server is fixed to the corresponding OS version. Removing this setting or adding the dnf command option allows you to refer to versions other than the current OS version.

    [root@kvm-rockylinux810 ~]# cat /etc/dnf/vars/releasever
8.10
  5. Change the settings to refer to the RPM files from a higher-version repository instead of those from the repository of the current OS version.
    [root@kvm-rockylinux810 ~]# rm /etc/dnf/vars/releasever
rm: remove regular file '/etc/dnf/vars/releasever'? y

[root@kvm-rockylinux810 ~]# dnf clean all
22 files removed

[root@kvm-rockylinux810 ~]# dnf list kernel
Installed Packages
kernel.x86_64                                                                     4.18.0-553.el8_10                                                                          @System
kernel.x86_64                                                                     4.18.0-553.5.1.el8_10                                                                      @System
Available Packages
kernel.x86_64                                                                     4.18.0-553.53.1.el8_10                                                                     baseos

Rocky Linux 9

For Rocky Linux, the repository configuration file is under the /etc/yum.repos.d directory.
The base URL of the NCP repository is http://repo.ncloud.com/rocky.

  1. Remotely access the server you want to check the repository information of.
  2. Check the repository information saved to the server.
    [root@kvm-rockylinux94 ~]# grep ^baseurl /etc/yum.repos.d/rocky* | grep -e "/BaseOS/" -e "/AppStream/" -e "/extras/"
/etc/yum.repos.d/rocky-extras.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/extras/$basearch/os/
/etc/yum.repos.d/rocky-extras.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/extras/$basearch/debug/tree/
/etc/yum.repos.d/rocky-extras.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/extras/source/tree/
/etc/yum.repos.d/rocky.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/BaseOS/$basearch/os/
/etc/yum.repos.d/rocky.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/BaseOS/$basearch/debug/tree/
/etc/yum.repos.d/rocky.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/BaseOS/source/tree/
/etc/yum.repos.d/rocky.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/AppStream/$basearch/os/
/etc/yum.repos.d/rocky.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/AppStream/$basearch/debug/tree/
/etc/yum.repos.d/rocky.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/AppStream/source/tree/

NAVIX 9

For Rocky Linux, the repository configuration file is under the /etc/yum.repos.d directory.
The base URL of the NCP repository is http://navix.ncloud.com/pub.

  1. Check the server connection to verify the repository information.
    Check the DNS lookup of the repository server.

    [root@kvm-navix ~]#  nslookup navix.ncloud.com
Server:		169.254.169.53
Address:	169.254.169.53#53

Non-authoritative answer:
navix.ncloud.com	canonical name = navix.ncloud.int-ncloudgtm.com.
Name:	navix.ncloud.int-ncloudgtm.com
Address: 169.254.87.160
Name:	navix.ncloud.int-ncloudgtm.com
Address: 169.254.87.161

    Check the communication port (80) with the repository server.

    [root@kvm-navix ~]#  nmap -p 80 navix.ncloud.com
Starting Nmap 7.92 ( https://nmap.org ) at 2026-01-14 14:12 KST
Nmap scan report for navix.ncloud.com (169.254.87.160)
Host is up (0.00033s latency).
Other addresses for navix.ncloud.com (not scanned): 169.254.87.161

PORT   STATE SERVICE
80/tcp open  http

Nmap done: 1 IP address (1 host up) scanned in 0.11 seconds

  2. Check the repository information registered on My server.

    [root@kvm-navix ~]# grep ^baseurl /etc/yum.repos.d/navix.repo
baseurl=http://navix.ncloud.com/pub/$releasever/$basearch/AppStream/os/
baseurl=http://navix.ncloud.com/pub/$releasever/$basearch/BaseOS/os/
baseurl=http://navix.ncloud.com/pub/$releasever/$basearch/CRB/os/
baseurl=http://navix.ncloud.com/pub/$releasever/$basearch/HighAvailability/os/
baseurl=http://navix.ncloud.com/pub/$releasever/$basearch/Updates/os/

Ubuntu 18.04 - 22.04

The Ubuntu 18.04-22.04 repository configuration file is /etc/apt/sources.list.
The base URL of the NCP repository is http://repo.ncloud.com/ubuntu.

  1. Remotely access the server you want to check the repository information of.
  2. Check the repository information connected to the server.
    • Ubuntu 18.04
    root@ubuntu1804:~# grep ^deb /etc/apt/sources.list 
deb http://archive.ubuntu.com/ubuntu bionic main restricted
deb http://archive.ubuntu.com/ubuntu bionic-updates main restricted
deb http://archive.ubuntu.com/ubuntu bionic universe
deb http://archive.ubuntu.com/ubuntu bionic-updates universe
deb http://archive.ubuntu.com/ubuntu bionic multiverse
deb http://archive.ubuntu.com/ubuntu bionic-updates multiverse
deb http://archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu bionic-security main restricted
deb http://archive.ubuntu.com/ubuntu bionic-security universe
deb http://archive.ubuntu.com/ubuntu bionic-security multiverse
    Currently, the base URL for Ubuntu 18.04 is http://archive.ubuntu.com/ubuntu, but we recommend using http://repo.ncloud.com/ubuntu. Change the base URL using the following method.
    root@ubuntu1804:~# cp -p /etc/apt/sources.list /etc/apt/sources.list_bkup

root@ubuntu1804:~# sed -i 's/archive.ubuntu.com/repo.ncloud.com/g' /etc/apt/sources.list

root@ubuntu1804:~# apt-get clean

root@ubuntu1804:~# apt-get update
Get:1 http://repo.ncloud.com/ubuntu bionic InRelease [242 kB]
Get:2 http://repo.ncloud.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:3 http://repo.ncloud.com/ubuntu bionic-backports InRelease [74.6 kB]
Get:4 http://repo.ncloud.com/ubuntu bionic-security InRelease [88.7 kB]
Get:5 http://repo.ncloud.com/ubuntu bionic/main amd64 Packages [1,019 kB]
Get:6 http://repo.ncloud.com/ubuntu bionic/main i386 Packages [1,007 kB] 

... Omitted ...

Fetched 29.0 MB in 5s (6,054 kB/s)                          
Reading package lists... Done
Building dependency tree      
Reading state information... Done
214 packages can be upgraded. Run 'apt list --upgradable' to see them.
    Check the changed repository information.
    root@ubuntu1804:~# grep ^deb /etc/apt/sources.list 
deb http://repo.ncloud.com/ubuntu bionic main restricted
deb http://repo.ncloud.com/ubuntu bionic-updates main restricted
deb http://repo.ncloud.com/ubuntu bionic universe
deb http://repo.ncloud.com/ubuntu bionic-updates universe
deb http://repo.ncloud.com/ubuntu bionic multiverse
deb http://repo.ncloud.com/ubuntu bionic-updates multiverse
deb http://repo.ncloud.com/ubuntu bionic-backports main restricted universe multiverse
deb http://repo.ncloud.com/ubuntu bionic-security main restricted
deb http://repo.ncloud.com/ubuntu bionic-security universe
deb http://repo.ncloud.com/ubuntu bionic-security multiverse.
    • Ubuntu 20.04
     root@ubuntu2004:~# grep ^deb /etc/apt/sources.list 
deb http://repo.ncloud.com/ubuntu focal main restricted
deb http://repo.ncloud.com/ubuntu focal-updates main restricted
deb http://repo.ncloud.com/ubuntu focal universe
deb http://repo.ncloud.com/ubuntu focal-updates universe
deb http://repo.ncloud.com/ubuntu focal multiverse
deb http://repo.ncloud.com/ubuntu focal-updates multiverse
deb http://repo.ncloud.com/ubuntu focal-backports main restricted universe multiverse
deb http://repo.ncloud.com/ubuntu focal-security main restricted
deb http://repo.ncloud.com/ubuntu focal-security universe
deb http://repo.ncloud.com/ubuntu focal-security multiverse
    • Ubuntu 22.04
    root@ubuntu2204:~# grep ^deb /etc/apt/sources.list 
deb http://repo.ncloud.com/ubuntu jammy main restricted
deb http://repo.ncloud.com/ubuntu jammy-updates main restricted
deb http://repo.ncloud.com/ubuntu jammy universe
deb http://repo.ncloud.com/ubuntu jammy-updates universe
deb http://repo.ncloud.com/ubuntu jammy multiverse
deb http://repo.ncloud.com/ubuntu jammy-updates multiverse
deb http://repo.ncloud.com/ubuntu jammy-backports main restricted universe multiverse
deb http://repo.ncloud.com/ubuntu jammy-security main restricted
deb http://repo.ncloud.com/ubuntu jammy-security universe
deb http://repo.ncloud.com/ubuntu jammy-security multiverse

Ubuntu 24.04

The Ubuntu 24.04 repository configuration file is /etc/apt/sources.list.d/ubuntu.sources.
The base URL of the NCP repository is http://repo.ncloud.com/ubuntu.

  1. Remotely access the server you want to check the repository information of.
  2. Check the repository information connected to the server.
    root@kvm-ubuntu2404:~# cat /etc/apt/sources.list.d/ubuntu.sources
Types: deb
URIs: http://repo.ncloud.com/ubuntu/
Suites: noble noble-updates noble-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

Types: deb
URIs: http://repo.ncloud.com/ubuntu/
Suites: noble-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

Repository FAQs

Q. Can I use external public mirror sites?

Yes. In addition to NCP repositories, you can change the settings to refer to external public mirror sites to swiftly respond to various authentication reviews or critical security vulnerabilities. 
However, to download packages or patches through external public mirrors, you need to configure public IP settings or NAT settings. Directly switch to servers with faster access by referring to the list of public mirrors as follows:

NAVIX official download site
https://dlnavix.navercorp.com/

CentOS Public Mirror list
https://www.centos.org/download/mirrors/
 
Rocky Linux Public Mirror list
https://mirrors.rockylinux.org/mirrormanager/mirrors
 
Ubuntu Public Mirror list
https://launchpad.net/ubuntu/+archivemirrors

Q: How can I check the list of kernel packages currently provided by NCP repositories?

To check the list of kernel packages currently provided, run the following commands for each Linux OS.

Note

The results of the commands may be different from what the guide shows, depending on the timing of running the commands.

  • CentOS 7
    [root@centos78 ~]# yum --showduplicates list kernel | tail -n 15
kernel.x86_64                  3.10.0-1160.53.1.el7                    update  
kernel.x86_64                  3.10.0-1160.59.1.el7                    update  
kernel.x86_64                  3.10.0-1160.62.1.el7                    update  
kernel.x86_64                  3.10.0-1160.66.1.el7                    update  
kernel.x86_64                  3.10.0-1160.71.1.el7                    update  
kernel.x86_64                  3.10.0-1160.76.1.el7                    update  
kernel.x86_64                  3.10.0-1160.80.1.el7                    update  
kernel.x86_64                  3.10.0-1160.81.1.el7                    update  
kernel.x86_64                  3.10.0-1160.83.1.el7                    update  
kernel.x86_64                  3.10.0-1160.88.1.el7                    update  
kernel.x86_64                  3.10.0-1160.90.1.el7                    update  
kernel.x86_64                  3.10.0-1160.92.1.el7                    update  
kernel.x86_64                  3.10.0-1160.95.1.el7                    update  
kernel.x86_64                  3.10.0-1160.99.1.el7                    update  
kernel.x86_64                  3.10.0-1160.102.1.el7                   update
  • Rocky Linux 8
    [root@kvm-rockylinux810 ~]# dnf --showduplicates list kernel
Installed Packages
kernel.x86_64                                                                     4.18.0-553.el8_10                                                                          @System
kernel.x86_64                                                                     4.18.0-553.5.1.el8_10                                                                      @System
Available Packages
kernel.x86_64                                                                     4.18.0-553.el8_10                                                                          baseos
kernel.x86_64                                                                     4.18.0-553.5.1.el8_10                                                                      baseos
kernel.x86_64                                                                     4.18.0-553.8.1.el8_10                                                                      baseos
kernel.x86_64                                                                     4.18.0-553.16.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.22.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.27.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.30.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.32.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.33.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.34.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.36.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.37.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.40.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.42.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.44.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.45.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.46.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.47.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.50.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.51.1.el8_10                                                                     baseos
kernel.x86_64                                                                     4.18.0-553.53.1.el8_10                                                                     baseos
  • Rocky Linux 9
    [root@kvm-rockylinux94 ~]# dnf --showduplicates list kernel
Installed Packages
kernel.x86_64                                                                     5.14.0-503.14.1.el9_5                                                                      @System
kernel.x86_64                                                                     5.14.0-503.16.1.el9_5                                                                      @System
Available Packages
kernel.x86_64                                                                     5.14.0-570.18.1.el9_6                                                                      baseos
  • NAVIX 9
    [root@kvm-navix ~]# dnf --showduplicates list kernel
Installed Packages
kernel.x86_64                                                                     5.14.0-570.28.1.el9_5                                                                      @System
kernel.x86_64                                                                     5.14.0-570.55.1.el9_5                                                                      @System
Available Packages
kernel.x86_64                                                                     5.14.0-570.58.1.el9_6                                                                      baseos
  • Ubuntu 18.04
    root@xen-ubuntu1804:~# apt update
root@xen-ubuntu1804:~# uname -r
4.15.0-136-generic

root@ubuntu1804:~# apt search linux-image-4.15.0 | grep ^linux-image.*generic | sort -V | tail -15

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

linux-image-4.15.0-193-generic/bionic-updates,bionic-security 4.15.0-193.204 amd64
linux-image-4.15.0-194-generic/bionic-updates,bionic-security 4.15.0-194.205 amd64
linux-image-4.15.0-196-generic/bionic-updates,bionic-security 4.15.0-196.207 amd64
linux-image-4.15.0-197-generic/bionic-updates,bionic-security 4.15.0-197.208 amd64
linux-image-4.15.0-200-generic/bionic-updates,bionic-security 4.15.0-200.211 amd64
linux-image-4.15.0-201-generic/bionic-updates,bionic-security 4.15.0-201.212 amd64
linux-image-4.15.0-202-generic/bionic-updates,bionic-security 4.15.0-202.213 amd64
linux-image-4.15.0-204-generic/bionic-updates,bionic-security 4.15.0-204.215 amd64
linux-image-4.15.0-206-generic/bionic-updates,bionic-security 4.15.0-206.217 amd64
linux-image-4.15.0-208-generic/bionic-updates,bionic-security 4.15.0-208.220 amd64
linux-image-4.15.0-209-generic/bionic-updates,bionic-security 4.15.0-209.220 amd64
linux-image-4.15.0-210-generic/bionic-updates,bionic-security 4.15.0-210.221 amd64
linux-image-4.15.0-211-generic/bionic-updates,bionic-security 4.15.0-211.222 amd64
linux-image-4.15.0-212-generic/bionic-updates,bionic-security 4.15.0-212.223 amd64
linux-image-4.15.0-213-generic/bionic-updates,bionic-security 4.15.0-213.224 amd64
  • Ubuntu 20.04
    root@kvm-ubuntu2004:~# apt update
root@kvm-ubuntu2004:~# uname -r
5.4.0-131-generic

root@kvm-ubuntu2004:~# apt search linux-image-5.4.0 | grep ^linux-image.*generic | sort -V | tail -15

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

linux-image-5.4.0-192-generic/focal-updates,focal-security 5.4.0-192.212 amd64
linux-image-5.4.0-193-generic/focal-updates,focal-security 5.4.0-193.213 amd64
linux-image-5.4.0-195-generic/focal-updates,focal-security 5.4.0-195.215 amd64
linux-image-5.4.0-196-generic/focal-updates,focal-security 5.4.0-196.216 amd64
linux-image-5.4.0-198-generic/focal-updates,focal-security 5.4.0-198.218 amd64
linux-image-5.4.0-200-generic/focal-updates,focal-security 5.4.0-200.220 amd64
linux-image-5.4.0-202-generic/focal-updates,focal-security 5.4.0-202.222 amd64
linux-image-5.4.0-204-generic/focal-updates,focal-security 5.4.0-204.224 amd64
linux-image-5.4.0-205-generic/focal-updates,focal-security 5.4.0-205.225 amd64
linux-image-5.4.0-208-generic/focal-updates,focal-security 5.4.0-208.228 amd64
linux-image-5.4.0-211-generic/focal-updates,focal-security 5.4.0-211.231 amd64
linux-image-5.4.0-212-generic/focal-updates,focal-security 5.4.0-212.232 amd64
linux-image-5.4.0-214-generic/focal-updates,focal-security 5.4.0-214.234 amd64
linux-image-5.4.0-215-generic/focal-updates,focal-security 5.4.0-215.235 amd64
linux-image-5.4.0-216-generic/focal-updates,focal-security 5.4.0-216.236 amd64
  • Ubuntu 22.04
    root@kvm-ubuntu2204:~# apt update
root@kvm-ubuntu2204:~# uname -r
5.15.0-94-generic

root@kvm-ubuntu2204:~# apt search linux-image-5.15.0 | grep ^linux-image.*generic | sort -V | tail -15

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

linux-image-5.15.0-122-generic/jammy-updates,jammy-security 5.15.0-122.132 amd64
linux-image-5.15.0-124-generic/jammy-updates,jammy-security 5.15.0-124.134 amd64
linux-image-5.15.0-125-generic/jammy-updates,jammy-security 5.15.0-125.135 amd64
linux-image-5.15.0-126-generic/jammy-updates 5.15.0-126.136 amd64
linux-image-5.15.0-127-generic/jammy-updates,jammy-security 5.15.0-127.137 amd64
linux-image-5.15.0-128-generic/jammy-updates 5.15.0-128.138 amd64
linux-image-5.15.0-130-generic/jammy-updates,jammy-security 5.15.0-130.140 amd64
linux-image-5.15.0-131-generic/jammy-updates,jammy-security 5.15.0-131.141 amd64
linux-image-5.15.0-133-generic/jammy-updates,jammy-security 5.15.0-133.144 amd64
linux-image-5.15.0-134-generic/jammy-updates,jammy-security 5.15.0-134.145 amd64
linux-image-5.15.0-135-generic/jammy-updates,jammy-security 5.15.0-135.146 amd64
linux-image-5.15.0-136-generic/jammy-updates,jammy-security 5.15.0-136.147 amd64
linux-image-5.15.0-138-generic/jammy-updates,jammy-security 5.15.0-138.148 amd64
linux-image-5.15.0-139-generic/jammy-updates,jammy-security 5.15.0-139.149 amd64
linux-image-5.15.0-140-generic/jammy-updates,jammy-security 5.15.0-140.150 amd64
  • Ubuntu 24.04
    root@kvm-ubuntu2404:~# apt update
root@kvm-ubuntu2404:~# uname -r
6.8.0-52-generic

root@kvm-ubuntu2404:~# apt search linux-image-6.8.0 | grep ^linux-image.*generic | sort -V | tail -15

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

linux-image-6.8.0-45-generic/noble-updates,noble-security 6.8.0-45.45 amd64
linux-image-6.8.0-47-generic/noble-updates,noble-security 6.8.0-47.47 amd64
linux-image-6.8.0-48-generic/noble-updates,noble-security,now 6.8.0-48.48 amd64 [installed]
linux-image-6.8.0-49-generic/noble-updates,noble-security 6.8.0-49.49 amd64
linux-image-6.8.0-50-generic/noble-updates,noble-security 6.8.0-50.51 amd64
linux-image-6.8.0-51-generic/noble-updates,noble-security 6.8.0-51.52 amd64
linux-image-6.8.0-52-generic/noble-updates,noble-security,now 6.8.0-52.53 amd64 [installed]
linux-image-6.8.0-53-generic/noble-updates 6.8.0-53.55 amd64
linux-image-6.8.0-54-generic/noble-updates,noble-security 6.8.0-54.56 amd64
linux-image-6.8.0-55-generic/noble-updates,noble-security 6.8.0-55.57 amd64
linux-image-6.8.0-56-generic/noble-updates,noble-security 6.8.0-56.58+1 amd64
linux-image-6.8.0-57-generic/noble-updates,noble-security 6.8.0-57.59 amd64
linux-image-6.8.0-58-generic/noble-updates,noble-security 6.8.0-58.60+1 amd64
linux-image-6.8.0-59-generic/noble-updates,noble-security 6.8.0-59.61 amd64
linux-image-6.8.0-60-generic/noble-updates,noble-security 6.8.0-60.63 amd64

Q. What should I do if I experience an error in Extras after the dnf update on a XEN hypervisor-based Rocky Linux 8?

In Rocky Linux 8, all repository configuration files except Rocky-BaseOS.repo and Rocky-AppStream.repo have been moved to the .bkup directory (/etc/yum.repos.d/.bkup).
When performing the dnf update to update all packages, your deleted repository configuration files are restored, and the restored files refer to external public repositories.
If external connections are blocked, errors may occur when running the dnf commands. The solution is as follows:

Note

NAVER Cloud Platform does not recommend updating all packages or kernels.  Additional support is not provided for issues that occur after running these commands.

  1. Access the server remotely.
  2. Check the list of the repository configuration files.
    [root@rockylinux88 ~]# ls -l /etc/yum.repos.d
total 52
-rw-r--r--. 1 root root  703 Jul 14 10:42 Rocky-AppStream.repo
-rw-r--r--. 1 root root  688 Jul 14 10:42 Rocky-BaseOS.repo
-rw-r--r--  1 root root 1753 Nov  3 12:09 Rocky-Debuginfo.repo
-rw-r--r--  1 root root  360 Nov  3 12:09 Rocky-Devel.repo
-rw-r--r--  1 root root  695 Nov  3 12:09 Rocky-Extras.repo
-rw-r--r--  1 root root  731 Nov  3 12:09 Rocky-HighAvailability.repo
-rw-r--r--  1 root root  680 Nov  3 12:09 Rocky-Media.repo
-rw-r--r--  1 root root  680 Nov  3 12:09 Rocky-NFV.repo
-rw-r--r--  1 root root  690 Nov  3 12:09 Rocky-Plus.repo
-rw-r--r--  1 root root  715 Nov  3 12:09 Rocky-PowerTools.repo
-rw-r--r--  1 root root  746 Nov  3 12:09 Rocky-ResilientStorage.repo
-rw-r--r--  1 root root  681 Nov  3 12:09 Rocky-RT.repo
-rw-r--r--  1 root root 2335 Nov  3 12:09 Rocky-Sources.repo
  3. Check the repository information connected to the server.
    [root@rockylinux88 ~]# grep -e ^baseurl -e ^mirrorlist /etc/yum.repos.d/Rocky*
/etc/yum.repos.d/Rocky-AppStream.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/AppStream/$basearch/os/
/etc/yum.repos.d/Rocky-BaseOS.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/BaseOS/$basearch/os/
/etc/yum.repos.d/Rocky-Debuginfo.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=BaseOS-$releasever-debug
/etc/yum.repos.d/Rocky-Debuginfo.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=AppStream-$releasever-debug
/etc/yum.repos.d/Rocky-Debuginfo.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=HighAvailability-$releasever-debug
/etc/yum.repos.d/Rocky-Debuginfo.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=PowerTools-$releasever-debug
/etc/yum.repos.d/Rocky-Debuginfo.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=ResilientStorage-$releasever-debug
/etc/yum.repos.d/Rocky-Devel.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=Devel-$releasever
/etc/yum.repos.d/Rocky-Extras.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=extras-$releasever
/etc/yum.repos.d/Rocky-HighAvailability.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=HighAvailability-$releasever

... ... (rest omitted)
  4. Change the address of the repository configuration file to http://repo.ncloud.com/rocky using the following commands:
    [root@rockylinux88 ~]# sed -i "s/^mirrorlist=/#mirrorlist/" /etc/yum.repos.d/*.repo

[root@rockylinux88 ~]# sed -i "s|#baseurl=http://dl.rockylinux.org/\$contentdir|baseurl=http://repo.ncloud.com/rocky|" /etc/yum.repos.d/*.repo
  5. Check the changed repository information.
    [root@rockylinux88 ~]# grep -e ^baseurl /etc/yum.repos.d/*.repo
/etc/yum.repos.d/Rocky-AppStream.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/AppStream/$basearch/os/
/etc/yum.repos.d/Rocky-BaseOS.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/BaseOS/$basearch/os/
/etc/yum.repos.d/Rocky-Debuginfo.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/BaseOS/$basearch/debug/tree/
/etc/yum.repos.d/Rocky-Debuginfo.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/AppStream/$basearch/debug/tree/
/etc/yum.repos.d/Rocky-Debuginfo.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/HighAvailability/$basearch/debug/tree/
/etc/yum.repos.d/Rocky-Debuginfo.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/PowerTools/$basearch/debug/tree/
/etc/yum.repos.d/Rocky-Debuginfo.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/ResilientStorage/$basearch/debug/tree/
/etc/yum.repos.d/Rocky-Devel.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/Devel/$basearch/os/
/etc/yum.repos.d/Rocky-Extras.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/extras/$basearch/os/
/etc/yum.repos.d/Rocky-HighAvailability.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/HighAvailability/$basearch/os/

... ... (rest omitted)
  6. Delete the dnf cache and run the dnf commands once again.
    [root@rockylinux88 ~]# rm -rf /var/cache/dnf/*

[root@rockylinux88 ~]# dnf --releasever=8.9 list kernel-4.18.0-513.5.1.el8_9
Rocky Linux 8.9 - AppStream                                                                                                                                                     63 MB/s | 9.5 MB     00:00   
Rocky Linux 8.9 - BaseOS                                                                                                                                                        47 MB/s | 2.9 MB     00:00   
Rocky Linux 8.9 - Extras                                                                                                                                                       1.1 MB/s |  14 kB     00:00   
Available Packages
kernel.x86_64                                                                                    4.18.0-513.5.1.el8_9                                                                                    baseos

Q: I'm experiencing a pending error in Extras when running the dnf commands on a KVM hypervisor-based Rocky Linux 8.8. How can I resolve this?

If the dnf command is not running smoothly on your Rocky Linux 8.8 server based on the KVM hypervisor, the solution is as follows:

  1. Access the server remotely.
  2. See if the dnf list kernel commands are continuously being checked in Extras as follows.
    This issue typically arises in environments where external connections are blocked, such as private subnets without NAT, public subnets without public IPs, or ACG.
    [root@kvm-rockylinux88 ~]# dnf --releasever=8.9 list kernel-4.18.0-513.5.1.el8_9
Rocky Linux 8.9 - AppStream                                                                                                                                     80 MB/s | 9.5 MB     00:00   
Rocky Linux 8.9 - BaseOS                                                                                                                                        61 MB/s | 2.9 MB     00:00   
Rocky Linux 8.9 - Extras                                              [               ===                                                                 ] ---  B/s |   0  B     --:-- ET
  3. Check the repository information connected to the server.
    [root@kvm-rockylinux88 ~]# grep -e ^baseurl -e ^mirrorlist /etc/yum.repos.d/Rocky*
/etc/yum.repos.d/Rocky-AppStream.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/AppStream/$basearch/os/
/etc/yum.repos.d/Rocky-BaseOS.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/BaseOS/$basearch/os/
/etc/yum.repos.d/Rocky-Debuginfo.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=BaseOS-$releasever-debug
/etc/yum.repos.d/Rocky-Debuginfo.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=AppStream-$releasever-debug
/etc/yum.repos.d/Rocky-Debuginfo.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=HighAvailability-$releasever-debug
/etc/yum.repos.d/Rocky-Debuginfo.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=PowerTools-$releasever-debug
/etc/yum.repos.d/Rocky-Debuginfo.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=ResilientStorage-$releasever-debug
/etc/yum.repos.d/Rocky-Devel.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=Devel-$releasever
/etc/yum.repos.d/Rocky-Extras.repo:mirrorlist=https://mirrors.rockylinux.org/mirrorlist?arch=$basearch&repo=extras-$releasever

... ... (rest omitted)
  4. Change the address of the repository configuration file to http://repo.ncloud.com/rocky using the following commands:
    [root@kvm-rockylinux88 ~]# sed -i "s/^mirrorlist=/#mirrorlist/" /etc/yum.repos.d/*.repo

[root@kvm-rockylinux88 ~]# sed -i "s|#baseurl=http://dl.rockylinux.org/\$contentdir|baseurl=http://repo.ncloud.com/rocky|" /etc/yum.repos.d/*.repo
  5. Check the changed repository information.
    [root@kvm-rockylinux88 ~]# grep -e ^baseurl /etc/yum.repos.d/*.repo
/etc/yum.repos.d/Rocky-AppStream.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/AppStream/$basearch/os/
/etc/yum.repos.d/Rocky-BaseOS.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/BaseOS/$basearch/os/
/etc/yum.repos.d/Rocky-Debuginfo.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/BaseOS/$basearch/debug/tree/
/etc/yum.repos.d/Rocky-Debuginfo.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/AppStream/$basearch/debug/tree/
/etc/yum.repos.d/Rocky-Debuginfo.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/HighAvailability/$basearch/debug/tree/
/etc/yum.repos.d/Rocky-Debuginfo.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/PowerTools/$basearch/debug/tree/
/etc/yum.repos.d/Rocky-Debuginfo.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/ResilientStorage/$basearch/debug/tree/
/etc/yum.repos.d/Rocky-Devel.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/Devel/$basearch/os/
/etc/yum.repos.d/Rocky-Extras.repo:baseurl=http://repo.ncloud.com/rocky/$releasever/extras/$basearch/os/

... ... (rest omitted)
  6. Delete the dnf cache and run the dnf commands once again.
    [root@kvm-rockylinux88 ~]# rm -rf /var/cache/dnf/*

[root@kvm-rockylinux88 ~]# dnf --releasever=8.9 list kernel-4.18.0-513.5.1.el8_9
Rocky Linux 8.9 - AppStream                                                                                                                                                     63 MB/s | 9.5 MB     00:00   
Rocky Linux 8.9 - BaseOS                                                                                                                                                        47 MB/s | 2.9 MB     00:00   
Rocky Linux 8.9 - Extras                                                                                                                                                       1.1 MB/s |  14 kB     00:00   
Available Packages
kernel.x86_64                                                                                    4.18.0-513.5.1.el8_9                                                                                    baseos

Q: Can I re-download the NCP repository configuration files?

To re-download the NCP repository configuration files for each Linux OS when the configuration files are deleted or if errors persist due to incorrect settings, follow these steps:

  1. Access the server remotely.
  2. Download the NCP repository configuration file.
  • CentOS 7
    [root@centos7 ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://init.ncloud.com/server/linux/repo/centos7/CentOS-Base.repo

[root@centos7 ~]# yum clean all
  • Rocky Linux 8
    [root@rocky8 ~]# wget -O /etc/yum.repos.d/Rocky-BaseOS.repo http://init.ncloud.com/server/linux/repo/rocky8/Rocky-BaseOS.repo
[root@rocky8 ~]# wget -O /etc/yum.repos.d/Rocky-AppStream.repo http://init.ncloud.com/server/linux/repo/rocky8/Rocky-AppStream.repo
[root@rocky8 ~]# wget -O /etc/yum.repos.d/Rocky-Extras.repo http://init.ncloud.com/server/linux/repo/rocky8/Rocky-Extras.repo

[root@rocky8 ~]# dnf clean all
  • Rocky Linux 9
    [root@rocky9 ~]# wget -O /etc/yum.repos.d/rocky.repo http://init.ncloud.com/server/linux/repo/rocky9/rocky.repo
[root@rocky9 ~]# wget -O /etc/yum.repos.d/rocky-extras.repo http://init.ncloud.com/server/linux/repo/rocky9/rocky-extras.repo

[root@rocky9 ~]# dnf clean all
  • navix 9
    [root@navix ~]# wget -O /etc/yum.repos.d/navix.repo http://navix.ncloud.com/pub/navix.repo

[root@navix ~]# dnf clean all
  • Ubuntu 18.04
    root@ubuntu18: ~# wget -O /etc/apt/sources.list http://init.ncloud.com/server/linux/repo/ubuntu18/sources.list

root@ubuntu18: ~# apt update
  • Ubuntu 20.04
    root@ubuntu20: ~# wget -O /etc/apt/sources.list http://init.ncloud.com/server/linux/repo/ubuntu20/sources.list

root@ubuntu20: ~# apt update
  • Ubuntu 22.04
    root@ubuntu22:~# wget -O /etc/apt/sources.list http://init.ncloud.com/server/linux/repo/ubuntu22/sources.list

root@ubuntu22:~# apt update
  • Ubuntu 24.04
    root@ubuntu24:~# wget -O /etc/apt/sources.list.d/ubuntu.sources http://init.ncloud.com/server/linux/repo/ubuntu24/ubuntu.sources

root@ubuntu24:~# apt update