Jesper Dybdal composed on 2025-11-17 14:10 (UTC+0100):
> Geoff wrote:
>> jd-debian-user wrote:
>>> But why does it seem not to trim the root partition (/dev/nvme0n1p2)?
>>> The EFI partition on the same physical disk seems to be trimmed fine.
>>
>>> My fstab contains
>>>
>>> LABEL=ESPANDY /boot/efi vfat nofail,errors=remount-ro 0 2
>>> LABEl=root / ext4 errors=remount-ro 0 1
>>> LABEL=disk2 /disk2 ext4 errors=remount-ro 0 1
>> What happens if you change LABEl=root to LABEL=root
> Aaargh! Fixing that helped a lot:
> # /sbin/fstrim --listed-in /etc/fstab:/proc/self/mountinfo --verbose
> /disk2: 115.6 MiB (121245696 bytes) trimmed on /dev/nvme1n1p1
> /: 1.8 TiB (1983153356800 bytes) trimmed on /dev/nvme0n1p2
> /boot/efi: 1017.7 MiB (1067110400 bytes) trimmed on /dev/nvme0n1p1
> Thanks to everybbdy who answered my stupid question! (And amazing that
> the system can run almost normally with a missing root fs entry in fstab.)
IMO the root= parameter from your bootloader, which is just an override of
initrd
content, was carrying through successful booting in spite of the broken fstab
entry. Did you ever look for a hint in dmesg or journal?
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