Am 06.02.20 um 23:03 schrieb Chris Murphy: > There's not enough information to know what's going on yet. My strong > advice is to make no further changes (no writes) to either block > device until you understand exactly what's going on. Every write > increases the chance of permanently losing the file system. > > > On Thu, Feb 6, 2020 at 2:01 PM Simeon Felis <arch-general@xxxxxxxxx> wrote: >> >> 4.19.75 dmesg: >> >> [ 17.707873] GPT:Primary header thinks Alt. header is not at the end of the di >> sk. >> [ 17.707889] GPT:7814037167 != 253879390758629 >> [ 17.707895] GPT:Alternate GPT header not at the end of the disk. >> [ 17.707902] GPT:7814037167 != 253879390758629 >> [ 17.707907] GPT: Use GNU Parted to correct GPT errors. >> [ 17.707977] sdb: sdb1 >> [ 17.709682] GPT:Primary header thinks Alt. header is not at the end of the disk. >> [ 17.709697] GPT:7814037167 != 253879390758629 >> [ 17.709703] GPT:Alternate GPT header not at the end of the disk. >> [ 17.709710] GPT:7814037167 != 253879390758629 > > This is terrible error reporting (by the kernel) in that it's not > clearly stating whether the primary GPT is reporting 7814037167 or > 253879390758629. No shit, they aren't the same. Usually this error > means the backup GPT at the end of the drive has been stepped on by > something; but LBA 253879390758629 is plainly bogus, that's ~115PiB. > > What do you get for either 'fdisk -l' or 'gdisk -l' or 'parted > /dev/sda u s p' for each device? root@omv:~# fdisk -l /dev/sda Disk /dev/sda: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors Disk model: USB3.0 DISK03 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: 63E9CA8E-F1B4-8A41-9C21-F058C1AC0783 Device Start End Sectors Size Type /dev/sda1 2048 7814037134 7814035087 3.7T Linux filesystem root@omv:~# fdisk -l /dev/sdb Disk /dev/sdb: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors Disk model: USB3.0 DISK04 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: 9904ABA2-B9F8-4544-9699-9935CE8A7B1F Device Start End Sectors Size Type /dev/sdb1 2048 7814035455 7814033408 3.7T Linux filesystem root@omv:~# gdisk -l /dev/sda GPT fdisk (gdisk) version 1.0.3 Partition table scan: MBR: protective BSD: not present APM: not present GPT: present Found valid GPT with protective MBR; using GPT. Disk /dev/sda: 7814037168 sectors, 3.6 TiB Model: USB3.0 DISK03 Sector size (logical/physical): 512/4096 bytes Disk identifier (GUID): 63E9CA8E-F1B4-8A41-9C21-F058C1AC0783 Partition table holds up to 128 entries Main partition table begins at sector 2 and ends at sector 33 First usable sector is 2048, last usable sector is 7814037134 Partitions will be aligned on 2048-sector boundaries Total free space is 0 sectors (0 bytes) Number Start (sector) End (sector) Size Code Name 1 2048 7814037134 3.6 TiB 8300 root@omv:~# gdisk -l /dev/sdb GPT fdisk (gdisk) version 1.0.3 Partition table scan: MBR: protective BSD: not present APM: not present GPT: present Found valid GPT with protective MBR; using GPT. Disk /dev/sdb: 7814037168 sectors, 3.6 TiB Model: USB3.0 DISK04 Sector size (logical/physical): 512/4096 bytes Disk identifier (GUID): 9904ABA2-B9F8-4544-9699-9935CE8A7B1F Partition table holds up to 128 entries Main partition table begins at sector 2 and ends at sector 33 First usable sector is 34, last usable sector is 7814037134 Partitions will be aligned on 2048-sector boundaries Total free space is 3693 sectors (1.8 MiB) Number Start (sector) End (sector) Size Code Name 1 2048 7814035455 3.6 TiB 8300
