# update-initramfs -u -k 4.19.0-5-amd64
update-initramfs: Generating /boot/initrd.img-4.19.0-5-amd64
/usr/share/initramfs-tools/hooks/cryptroot: 64:
/usr/share/initramfs-tools/hooks/cryptroot: cannot open /proc/mounts:
No such file
cryptsetup: WARNING: Couldn't determine root device
sed: can't read /proc/cmdline: No such file or directory
/usr/share/initramfs-tools/hooks/cryptroot: 64:
/usr/share/initramfs-tools/hooks/cryptroot: cannot open /proc/mounts:
No such file
cryptsetup: WARNING: The initramfs image may not contain cryptsetup binaries
nor crypto modules. If that's on purpose, you may want to uninstall the
'cryptsetup-initramfs' package in order to disable the cryptsetup initramfs
integration and avoid this warning.
W: Couldn't identify type of root file system for fsck hook
/proc/mounts isn't accessible in the chroot;