Check for issues on package commands (Linux)

Available in VPC

This page describes how to inspect when a specific package command doesn't work properly when using a Linux server.

Caution

NAVER Cloud Platform doesn't support checking whether the settings in the server or the packages are normal after the server is created.
We recommend referring to the latest official documentation about the Linux release version in use.

To compare normal commands, build a new server with the same OS version, run the commands, and compare the results. This guide describes using the awk command as an example.

NAVIX, CentOS, Rocky Linux

Remotely access the server where the command execution issue occurs and the new server.

Compare and check the location of the corresponding command and the information on the installed package.

[root@rockylinux9 ~]# which awk
/usr/bin/awk

[root@rockylinux9 ~]# ls -l /usr/bin/awk
lrwxrwxrwx. 1 root root 4 May 13  2022 /usr/bin/awk -> gawk

[root@rockylinux9 ~]# ls -l /usr/bin/gawk
-rwxr-xr-x. 1 root root 714968 May 13  2022 /usr/bin/gawk

[root@rockylinux9 ~]# rpm -qf /usr/bin/gawk
gawk-5.1.0-6.el9.x86_64

Check the changes after the package is installed using the rpm -V or rpm --verify command.
If it is normal, no output occurs as a result of running the command.

[root@rockylinux9 ~]# rpm -V gawk-5.1.0-6.el9.x86_64
[root@rockylinux9 ~]#

When there are problems, you can check the following output results.

   S file Size differs
   M Mode differs (includes permissions and file type)
   5 digest (formerly MD5 sum) differs
   D Device major/minor number mismatch
   L readLink(2) path mismatch
   U User ownership differs
   G Group ownership differs
   T mTime differs
   P caPabilities differ

Each item indicates changes, and you can see these outputs and check the changes to the package to resolve the issue.
The following example shows the changes to the package by changing the permissions of the /usr/bin/gawk file:

[root@rockylinux9 ~]# ls -l /usr/bin/gawk
-rwxr-xr-x. 1 root root 714968 May 13  2022 /usr/bin/gawk

[root@rockylinux9 ~]# chmod o-x /usr/bin/gawk

[root@rockylinux9 ~]# ls -l /usr/bin/gawk
-rwxr-xr--. 1 root root 714968 May 13  2022 /usr/bin/gawk

[root@rockylinux9 ~]# rpm -V gawk-5.1.0-6.el9.x86_64 
.M.......    /usr/bin/gawk

In the output results, .M....... indicates Mode differs.
This allows you to check that the package is changed because the permissions upon initial installation and the current permissions are different.

To compare the library that the command of a specific package refers to, use the ldd command to check the library of the command.

[root@rockylinux9 ~]# ldd /usr/bin/gawk
    linux-vdso.so.1 (0x00007ffcb51b0000)
    libsigsegv.so.2 => /lib64/libsigsegv.so.2 (0x00007f677502f000)
    libreadline.so.8 => /lib64/libreadline.so.8 (0x00007f6774fd7000)
    libmpfr.so.6 => /lib64/libmpfr.so.6 (0x00007f6774f27000)
    libgmp.so.10 => /lib64/libgmp.so.10 (0x00007f6774e82000)
    libm.so.6 => /lib64/libm.so.6 (0x00007f6774da7000)
    libc.so.6 => /lib64/libc.so.6 (0x00007f6774a00000)
    libtinfo.so.6 => /lib64/libtinfo.so.6 (0x00007f6774d75000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f67750f3000)

If you can't find the cause of the error, install the corresponding package.

Note

When you reinstall the package, check whether it is the same version of the existing package.

The following example shows the procedure for deleting a specific file of httpd (apache web server), re-installing, and recovering the package.

[root@rockylinux9 ~]# rpm -qa | grep httpd
httpd-tools-2.4.62-4.el9.x86_64
httpd-filesystem-2.4.62-4.el9.noarch
httpd-core-2.4.62-4.el9.x86_64
rocky-logos-httpd-90.16-1.el9.noarch
httpd-2.4.62-4.el9.x86_64

[root@rockylinux9 ~]# rm -i /usr/share/man/man8/apachectl.8.gz
rm: remove regular file '/usr/share/man/man8/apachectl.8.gz'? y

[root@rockylinux9 ~]# rpm -V httpd
missing   d /usr/share/man/man8/apachectl.8.gz

[root@rockylinux9 ~]# dnf reinstall httpd
Last metadata expiration check: 0:12:37 ago on Fri 04 Jul 2025 03:31:40 PM KST.
Dependencies resolved.
===========================================================================================
Package           Architecture       Version                  Repository             Size
===========================================================================================
Reinstalling:
httpd             x86_64             2.4.62-7.el9             appstream              44 k

Transaction Summary
===========================================================================================
Total download size: 45 k
 Installed size: 59 k
 Is this ok [y/N]: y
... Omitted ...
 Reinstalled:
  httpd-2.4.62-7.el9.x86_64

Complete!

[root@rockylinux9 ~]# rpm -V httpd
[root@rockylinux9 ~]#

Ubuntu

Remotely access the server where the command execution issue occurs and the new server.