Dear all, after incorrectly unmounted SSD disc (which I use as portable and I just by mistake unplug it) I've finished with partly crashed partition. Symptoms: impossible to mount RW/ possible to mount RO. uname -a Linux linux-foir 5.6.0-1-default #1 SMP Mon Mar 30 08:00:44 UTC 2020 (4de1111) x86_64 x86_64 x86_64 GNU/Linux ------------------- dmesg when trying to mount rw: [169971.382641] usb-storage 1-2:1.0: USB Mass Storage device detected [169971.382942] scsi host3: usb-storage 1-2:1.0 [169972.396884] scsi 3:0:0:0: Direct-Access ASMT 2115 0 PQ: 0 ANSI: 6 [169972.397613] sd 3:0:0:0: Attached scsi generic sg1 type 0 [169972.399899] sd 3:0:0:0: [sdb] Spinning up disk... [169973.419852] ...ready [169975.468874] sd 3:0:0:0: [sdb] 250069680 512-byte logical blocks: (128 GB/119 GiB) [169975.469626] sd 3:0:0:0: [sdb] Write Protect is off [169975.469633] sd 3:0:0:0: [sdb] Mode Sense: 43 00 00 00 [169975.470311] sd 3:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [169975.486356] sdb: sdb1 [169975.488448] sd 3:0:0:0: [sdb] Attached SCSI disk [169979.980390] BTRFS info (device sdb1): disk space caching is enabled [169979.980399] BTRFS info (device sdb1): has skinny extents [169980.094949] BTRFS warning (device sdb1): chunk 13631488 missing 1 devices, max tolerance is 0 for writable mount [169980.094954] BTRFS warning (device sdb1): writable mount is not allowed due to too many missing devices [169980.115969] BTRFS error (device sdb1): open_ctree failed ------------------ btrfs --version btrfs-progs v5.4.1 ------------------- btrfs fi show Label: none uuid: 17e5780b-2196-46e0-9cba-5c896a2eaa3d Total devices 1 FS bytes used 108.44GiB devid 1 size 119.24GiB used 111.02GiB path /dev/sdb1 -------------------- when mounted ro then btrfs fi df brt/ Data, single: total=109.01GiB, used=108.29GiB System, DUP: total=8.00MiB, used=16.00KiB Metadata, DUP: total=1.00GiB, used=150.80MiB GlobalReserve, single: total=124.33MiB, used=0.00B ----------------------- Any ideas how to remount it RW? We can test anything on the disc... (there are valuable data and I have backup). Information about used data seems to be wrong as well... Thanks! Best Regards Jan.
