As a follow up to my previous comment, I tested booting my Dell XPS 8930
with an Ubuntu 25.10 Live ISO USB.
This worked and interestingly the Live ISO is currently using
6.17.0-5-generic.
So definitely looks like a regression between 6.17.0-6-generic and
6.17.0-5-generic.
Also, I noticed in the boot log that I got the same error (faux_driver
dell-pc: platform_profile probe failed) as before, but this didn't
prevent the Live ISO from booting.
As Marian stated, this looks like it might not be specifically hardware
related.
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https://bugs.launchpad.net/bugs/2129972
Title:
Ubuntu 25.10 can't boot with 6.17.0-6-generic kernel on encrypted fs
Status in linux package in Ubuntu:
Confirmed
Bug description:
Hi guys.
Just got updated kernel 6.17.0-6 for 25.10, decided to reboot and
found out, that I can't boot anymore.
This laptop uses an ext4 on top of encrypted LVM setup (LUKS
encryption v2).
I'm able to provide encryption password, system continues to boot, but
it looks like that can't mount root partition, so I don't have logs,
just a screenshot of what kernel reports on screen that I've added to
attachment.
Previous kernel 6.17.0-5 boots without problems.
That's my /etc/fstab just in case it's needed:
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/ubuntu-vg/ubuntu-lv during curtin installation
/dev/disk/by-id/dm-uuid-LVM-aoOM30ZlY6QyCItp6GcyhkVzOBoTPNfQX0UH24zvqx7or2HTnBZW2Y5PquPhVoXq / ext4 defaults 0 1
# /boot was on /dev/nvme0n1p2 during curtin installation
/dev/disk/by-uuid/5ee5a33e-ec14-4619-84a2-ae11385c546e /boot ext4 defaults 0 1
# /boot/efi was on /dev/nvme0n1p1 during curtin installation
/dev/disk/by-uuid/3B99-B952 /boot/efi vfat defaults 0 1
/swapfile none swap sw 0 0
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