| Description | This appears to be similar to a previous bug/issue with mokutil + shim packages and as raised in issue 001763. The issue hower is not fixed with the latest shim and mokutils (releases 15-8.el7).
See: https://bugs.centos.org/view.php?id=15522
The work-around back then was straight-forward:
download last-known-working-with-reboot shim and mokutil packages, then force-downgrade install and reboots worked again.
This same work-around appears to work the same way.
System was upgraded to all updates for CentOS Linux release 7.8.2003
One or both of these packages provided in 7.8.2003 appear to cause problems with older hardware set to boot with UEFI:
* mokutil-15-7.el7_9.x86_64
* shim-x64-15-7.el7_9.x86_64
Breaks reboot on old hardware set to use UEFI boot.
Works fine on new hardware set to use UEFI boot.
For broken hardware, a work-around to make bootable again:
* Use DRAC with virtual media, remote boot ISO, rescue, shell, "bind" mount {/dev, /proc, /sys, /run to original volume root}, chroot to original volume root, assign IP to interface, configure /etc/resolv.conf, then
* wget http://mirror.centos.org/centos/7/os/x86_64/Packages/mokutil-15-2.el7.centos.x86_64.rpm
* wget http://mirror.centos.org/centos/7/os/x86_64/Packages/shim-x64-15-2.el7.centos.x86_64.rpm
* rpm --force -U mokutil-15-2.el7.centos.x86_64.rpm shim-x64-15-2.el7.centos.x86_64.rpm
* exit chroot, umount all "bind" mounts, reboot server, and once again this older hardware using UEFI can reboot. to CentOS.
After reboot, login and you can still see:
$ cat /etc/centos-release
CentOS Linux release 7.8.2003 (Core)
But it at least boots.
Further workaround, blacklist those 2 packages from getting upgraded with future yum calls (and periodically check to see if issue is fixed so you can disable the block for upgrade), or keep around those same 2 RPM and be ready to replace them any time you upgrade in the future until bug is fixed in new package version. |
|---|
