Issue

Description of problem: Running "grub2-mkconfig" will remove all options from the BLS entries in /boot/loader/entries and /etc/kernel/cmdline. Version-Release number of selected component (if applicable): grub2-tools-2.06-60.el9.x86_64 How reproducible: Always Steps to Reproduce: cat /boot/loader/entries/* | grep ^options options root=UUID=b862bc8d-e44f-44be-95f8-93ccdcaa6b35 console=tty0 console=ttyS0,115200n8 no_timer_check net.ifnames=0 crashkernel=1G-4G:192M,4G-64G:256M,64G-:512M $tuned_params cat /etc/kernel/cmdline root=UUID=b862bc8d-e44f-44be-95f8-93ccdcaa6b35 console=tty0 console=ttyS0,115200n8 no_timer_check net.ifnames=0<no newline at end> cat /proc/cmdline BOOT_IMAGE=(hd0,gpt3)/vmlinuz-5.14.0-268.el9.x86_64 root=UUID=b862bc8d-e44f-44be-95f8-93ccdcaa6b35 console=tty0 console=ttyS0,115200n8 no_timer_check net.ifnames=0 crashkernel=1G-4G:192M,4G-64G:256M,64G-:512M grub2-mkconfig -o /dev/null Generating grub configuration file ... Adding boot menu entry for UEFI Firmware Settings ... done cat /boot/loader/entries/* | grep ^options options root=UUID=b862bc8d-e44f-44be-95f8-93ccdcaa6b35 ro cat /etc/kernel/cmdline root=UUID=b862bc8d-e44f-44be-95f8-93ccdcaa6b35 ro Actual results: As above. Expected results: Running grub2-mkconfig should not change the BLS entries or /etc/kernel/cmdline. (My expectation is that grub2-mkconfig should never change any files itself, it should only gather information and output a config file that I then might or might not install for real. But maybe that is a wrong expectation.) Additional info: I think this has started to happen for two reasons: GRUB_CMDLINE_LINUX in /etc/default/grub is empty in RHEL 9, probably since the beginning. In RHEL 8 and Fedora, it matches the BLS entries. The 10_linux part of grub2-mkconfig used to only look at BLS entries that match the machine id and would miss the one that is actually present, which looks like this: ls /boot/loader/entries ffffffffffffffffffffffffffffffff-5.14.0-268.el9.x86_64.conf This is why grub2-mkconfig would not clobber BLS entries before RHEL 9.2, I think. It would probably clobber /etc/kernel/cmdline. Now 10_linux processes all files in /boot/loader/entries. Also note that /etc/kernel/cmdline does not contain the crashkernel option that is in the BLS entries.

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