Does "a disk drive from a defunct CentOS-7 system was mounted. " include physically cabling the drive in and/or connecting the given drive or just mounting a disk device that has been there the entire time?
If you physically added a another disk it may be booting from the wrong disk and/or the added disk may be confusing grub in some manner because it is an earlier device than the real boot disk. I have also seen that if you have too many disks (typically more than 8) that you cannot boot from anything after the 9th with a pre-efi disk. And if you did an update with the older disk mounted on /boot and/or /boot/efi then the grub entries could have been updated on the centos disk's /boot and not on the real boot. On Wed, Oct 1, 2025 at 12:45 AM Jon LaBadie <[email protected]> wrote: > > Since a large recent update I'm unable to reboot. > Selecting any of the rescue or 5 retained kernels fails. > After making the choice the screen clears to black with > a single underscore and no further activity. > > Whether this had any effect I don't know, but during the > update (including kernel 6.16.8-200) a disk drive from > a defunct CentOS-7 system was mounted. The boot dir there > was noted and my grub menu included Fedora and CentOS. > > Some of what I've tried: > > - Booted a live F42 system and did an fsck on every file > system. Nothing except "optimizing" type messages. > > - From the live system mounted the root, var, boot, and efi > system and chroot'ed to that environment. Ran grub2-mkconfig. > Got rid of the CentOS stuff in the grub menu but still no > boot. > > - As above, remade the initramfs with dracut but no change. > > Any recommendations? > > Jon > > -- > _______________________________________________ > users mailing list -- [email protected] > To unsubscribe send an email to [email protected] > Fedora Code of Conduct: > https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: > https://lists.fedoraproject.org/archives/list/[email protected] > Do not reply to spam, report it: > https://pagure.io/fedora-infrastructure/new_issue -- _______________________________________________ users mailing list -- [email protected] To unsubscribe send an email to [email protected] Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/[email protected] Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
