No crash, no power failure. Computer always poweroff after shutdown correctly.
mount -a report nothing. I do not use swap.
/run/66/log/0/current with verbose=4
fstab:
# /dev/mapper/cryptroot
UUID=cd9c9a85-d563-4d0f-859b-7dd66a213d7a / ext4 rw,relatime 0 1
# /dev/nvme0n1p1
UUID=40B5-6E43 /boot vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 2
# /dev/sda1
UUID=70a2634d-e7ac-4356-b3f8-7a8c1cacf50a /mnt/backup ext4 noauto,rw,users,relatime 0 0
# /dev/sdc1 LABEL=Blender
LABEL=Blender /home/bruno/blender ext4 noauto,rw,users,relatime 0 3
I've booted my obarun install key and opened the crypt part with cryptsetup. Launched fsck on the ext4 uncrypted partition. No problem.
The partition may be mounted before fsck?
FYI, the first boot was problematic as the installer has not created the tree. I've created them manually. Maybe something wrong here...
EDIT: after third lecture of /run/66/log/0/current, something appeared to my eyes:
/dev/mapper/cryptroot is mounted.
2020-08-31 21:03:03.424519225 e2fsck: Cannot continue, aborting.
My partition is mounted BEFORE fsck which IS the problem.