I noticed, when inspecting GRUB config, that the root partition
identification changed from using UUID to device name (/dev/sda1 is the
root filesystem and its UUID is indeed
4bd0920b-1e9e-412a-992d-b7392017d1a7).
Not sure that it is related to the problem at hand, but it seems odd
that this happens on the same version causing a root mounting issue.
```
cat /boot/grub/grub.cfg | grep boot
set boot_once=true
set boot_once=true
if [ -z "${boot_once}" ]; then
linux /boot/vmlinuz-6.3.0-1-amd64 root=/dev/sda1 ro quiet
linux /boot/vmlinuz-6.3.0-1-amd64 root=/dev/sda1 ro quiet
linux /boot/vmlinuz-6.3.0-1-amd64 root=/dev/sda1 ro single
linux /boot/vmlinuz-6.1.0-9-amd64
root=UUID=4bd0920b-1e9e-412a-992d-b7392017d1a7 ro quiet
initrd /boot/initrd.img-6.1.0-9-amd64
linux /boot/vmlinuz-6.1.0-9-amd64
root=UUID=4bd0920b-1e9e-412a-992d-b7392017d1a7 ro single
initrd /boot/initrd.img-6.1.0-9-amd64
linux /boot/vmlinuz-5.18.0-4-amd64
root=UUID=4bd0920b-1e9e-412a-992d-b7392017d1a7 ro quiet
initrd /boot/initrd.img-5.18.0-4-amd64
linux /boot/vmlinuz-5.18.0-4-amd64
root=UUID=4bd0920b-1e9e-412a-992d-b7392017d1a7 ro single
initrd /boot/initrd.img-5.18.0-4-amd64
```
JB