News: 0000827573

  ARM Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life (Terry Pratchett, Jingo)

Grub2 updates for Red Hat systems are making some unbootable

([Security] Jul 30, 2020 16:44 UTC (Thu) (jake))


As [1]reported in the comments on the [2]Grub2 secure-boot vulnerabilities report , the updates for grub2 for RHEL 8 and CentOS 8 are [3]making some systems unbootable . The boot problems are seemingly unrelated to whether the system has secure boot enabled. It may be worth waiting a bit for that to shake out.



[1] https://lwn.net/Articles/827504/

[2] https://lwn.net/Articles/827403/

[3] https://bugzilla.redhat.com/show_bug.cgi?id=1861977

Grub2 updates for Red Hat systems are making some unbootable

According to comments on the HN post ( [1]https://news.ycombinator.com/item?id=23999212 ), this is also affecting at least Ubuntu and Debian: [2]https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1889509

[1] https://news.ycombinator.com/item?id=23999212

[2] https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1889509

Grub2 updates for Red Hat systems are making some unbootable

According to comments on the HN post ( [1]https://news.ycombinator.com/item?id=23999212 ), this is also affecting at least Ubuntu and Debian: [2]https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1889509

[1] https://news.ycombinator.com/item?id=23999212

[2] https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1889509

Also on Debian based systems

This also happened on debian 10 (buster). Only my bios based systems had this problem, efi works fine. (I also read online, that these are the observations from other people)

For me, chrooting into the broken system (or doing it while the system is still running), `grub-install /dev/sda` solved it for me.

Also on Debian based systems

For anyone reading that, never do that grub install command on a UEFI boot system. It will ruin it forever in hard to fix ways.

Also on Debian based systems

For anyone reading that, never do that grub install command on a UEFI boot system. It will ruin it forever in hard to fix ways.

An Hacker there was, one of the finest sort
Who controlled the system; graphics was his sport.
A manly man, to be a wizard able;
Many a protected file he had sitting on his table.
His console, when he typed, a man might hear
Clicking and feeping wind as clear,
Aye, and as loud as does the machine room bell
Where my lord Hacker was Prior of the cell.
The Rule of good St Savage or St Doeppnor
As old and strict he tended to ignore;
He let go by the things of yesterday
And took the modern world's more spacious way.
He did not rate that text as a plucked hen
Which says that Hackers are not holy men.
And that a hacker underworked is a mere
Fish out of water, flapping on the pier.
That is to say, a hacker out of his cloister.
That was a text he held not worth an oyster.
And I agreed and said his views were sound;
Was he to study till his head wend round
Poring over books in the cloisters? Must he toil
As Andy bade and till the very soil?
Was he to leave the world upon the shelf?
Let Andy have his labor to himself!
-- Chaucer
[well, almost. Ed.]