Celejar wrote: > Hi, > > I have / on a luks volume, mounted with dm-crypt (automatically, > via /etc/fstab - /etc/crypttab). As recently as kernel 4.18.0-3, > everything was normal. With 4.19.0-1-amd64, the volume mounts, and the > system seems basically functional - but /dev/mapper is empty besides for > 'control'! > > ~# ls -al /dev/mapper/ > total 0 > drwxr-xr-x 2 root root 60 Dec 23 23:32 . > drwxr-xr-x 18 root root 3340 Dec 23 23:32 .. > crw------- 1 root root 10, 236 Dec 23 23:32 control > > Despite the fact that 'mount' shows that the dm-crypt mount is present: > > ~# mount | grep sda > /dev/mapper/sda2_crypt on / type ext4 (rw,relatime,errors=remount-ro) > /dev/sda1 on /boot type ext4 (rw,relatime) > > ~# > > This situation causes update-initramfs to fail: > > ~# update-initramfs -u > update-initramfs: Generating /boot/initrd.img-4.19.0-1-amd64 > mkinitramfs: failed to determine device for / > mkinitramfs: workaround is MODULES=most, check: > grep -r MODULES /etc/initramfs-tools > > Error please report bug on initramfs-tools > Include the output of 'mount' and 'cat /proc/mounts' > update-initramfs: failed for /boot/initrd.img-4.19.0-1-amd64 with 1. > > ~# > > Which is causing things like updating kernels to fail ... > > What on earth is going on here?
This might be the kernel bug introduced in 4.18: https://lkml.org/lkml/2018/12/22/153 which will be fixed. Check the thread. In the meantime, go back to an earlier kernel. -dsr-
