I'm running Linux Mint 21.1 Xfce and it was all good up to and including 5.15.0-60-generic but after updating to -67 I started getting an "out of memory" error at boot (hit any key) followed by "kernel panic, not syncing, VFS unable to mount rootfs on unknown block".

Booting trusty old version -60 via advanced options worked fine so I figured I'd just skip -67 and wait until the next version. But now -69 is out and doing the same thing. So a bit of Googling turned up these:



So I tried this:

sudo mount /dev/nvme0n1p1 /mnt
sudo mount --bind /dev /mnt/dev
sudo mount --bind /dev/pts /mnt/dev/pts
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys
sudo chroot /mnt
update-initramfs -u -k 5.15.0-69-generic

But only ended up losing my Windows Grub entry and -69 STILL won't boot. It's fairly new hardware (13700K, DDR5, 4070 Ti) so I wondered if that has anything to do with it, but it works fine on -60 and earlier? I'm happy enough to stick with an older kernel for now, but eventually that's going to become a undesirable security-wise if I'm way out-of-date.

Any help would be appreciated.

  • This looks like a regression. Does kernel 6.2.8 work for you? Mar 28, 2023 at 10:56
  • Well I tend to play it safe and only install the Ubuntu kernels offered by Mint updater (I'm not somebody who gets excited about new kernel versions - just want to stay secure). So 5.15 branch is as new as I'm offered. I guess I could manually install something more cutting edge though if it's really necessary?
    – Sam
    Mar 28, 2023 at 10:59
  • Suit yourself... Mar 28, 2023 at 11:18

1 Answer 1


I found a related answer: https://unix.stackexchange.com/a/717710

It says to modify MODULES and COMPRESS in initramfs.conf

Using an editor of your choice (you will need to do this with sudo privilege)-


Execute sudo update-initramfs -u

  • That did it! Thank you! Yeah I have those nVIDIA drivers too...
    – Sam
    Apr 1, 2023 at 17:29

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