NSA 325v2 boot failure (1 reply)

Suddenly my NSA 325v2 with uboot and debian stopped working: it was on but unresponsive, not even getting it's ip from dhcp. Turning it off and on again i get this error :
[ 11.764587][ T7] scsi 2:0:0:0: Direct-Access USB SanDisk 3.2Gen1 1.00 PQ: 0 ANSI: 6
[ 11.782545][ T75] sd 2:0:0:0: [sdc] 60088320 512-byte logical blocks: (30.8 GB/28.7 GiB)
[ 11.799423][ T75] sd 2:0:0:0: [sdc] Write Protect is on
[ 11.812419][ T75] sd 2:0:0:0: [sdc] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 11.838663][ T75] sdc: sdc1 sdc2
[ 11.847540][ T75] sd 2:0:0:0: [sdc] Attached SCSI removable disk
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... done.
Begin: Will now check root file system ... fsck from util-linux 2.36.1
[/sbin/fsck.ext3 (1) -- /dev/sdc1] fsck.ext3 -a -C0 /dev/sdc1
fsck.ext3: Read-only file system while trying to open /dev/sdc1
Disk write-protected; use the -n option to do a read-only
check of the device.
fsck exited with status code 8
done.
Warning: File system check failed but did not detect errors
[ 27.523913][ T171] EXT4-fs (sdc1): mounting ext3 file system using the ext4 subsystem
[ 27.540497][ T171] EXT4-fs (sdc1): INFO: recovery required on readonly filesystem
[ 27.548170][ T171] EXT4-fs (sdc1): write access unavailable, cannot proceed (try mounting with noload)
mount: mounting /dev/sdc1 on /root failed: Read-only file system
Failed to mount /dev/sdc1 as root file system.

Debian is on that SanDisk flash disk; maybe it's the flash disk that broke?
Full boot log