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  1. RHEL
  2. RHEL-50672

Harden /bin/kernel-install to avoid failing silently when /etc/machine-id doesn't end with newline

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    • rhel-9.5
    • rhel-9.4
    • systemd
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    • systemd-252-41.el9
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    • ssg_core_services
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      Goal

      • When /etc/machine-id doesn't end with a newline character, /bin/kernel-install fails silently in error, which prevents creating the BLS entry for the newly created kernel
        • As an administrator, I would like to be aware that my /etc/machine-id was not correctly created

      Acceptance Criteria

      • Output on stderr an error message stating that /etc/machine-id has not proper format

      Reproducer

      1. Remove trailing newline from /etc/machine-id 
        # echo -n $(cat /etc/machine-id) > /etc/machine-id
      2. Install or reinstall a kernel 
        # yum reinstall kernel*-5.14.0-427.13.1.el9_4.x86_64

      Result

      [...]
error: %preun(kernel-core-5.14.0-427.13.1.el9_4.x86_64) scriptlet failed, exit status 1

Error in PREUN scriptlet in rpm package kernel-core
  Running scriptlet: kernel-modules-core-5.14.0-427.13.1.el9_4.x86_64                                                     8/8 
error: kernel-core-5.14.0-427.13.1.el9_4.x86_64: erase failed

  Running scriptlet: kernel-core-5.14.0-427.13.1.el9_4.x86_64                                                             8/8 
warning: %posttrans(kernel-core-5.14.0-427.13.1.el9_4.x86_64) scriptlet failed, exit status 1

Error in POSTTRANS scriptlet in rpm package kernel-core
[...]
Error: Transaction failed

              dtardon@redhat.com David Tardon
              rhn-support-rmetrich Renaud Métrich
              David Tardon David Tardon
              Frantisek Sumsal Frantisek Sumsal
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                Created:
                Updated:
                Resolved: