On Sat, Aug 1, 2020 at 12:03 PM D. Hugh Redelmeier via talk <talk@gtalug.org> wrote:
https://access.redhat.com/solutions/5272311
https://arstechnica.com/gadgets/2020/07/red-hat-and-centos-systems-arent-boo...
Don't do upgrades to Fedora, RHEL, CentOS until you read those.
This seems to have bitten me, making one of my routers (running CentOS 7). I'm still not sure if this is what has happened to my system. The symptoms looked like an SSD failure: nothing past POST on the screen.
So I spent a fair bit of time trying to work around the loss. Now that I've seen this error report, I will redirect my efforts
Seems to affect grub2 and secure boot for quite a number of distributions. https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass?WUw... One fix quote from this link. "solved this by actually copying the grubenv file to /boot/grub2 instead of relying on the symlink to efi." ---
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-- Russell