September 30, 20214 yr I swapped SATA cables on the server and suddenly, one of by btrfs drives became unmountable with the error Unsupported partition layout. I ran the btrfs disk check and no errors found. I loaded the drive on unassigned devices and all the data is there, it just won't mount when I put it as part of the array. Thoughts?
September 30, 20214 yr Author To add to this, when I check Unassigned Devices, there is no other partition on the drive, it's just the BTRFS one.
September 30, 20214 yr Community Expert 8 minutes ago, Anthwerp said: Thoughts? This usually indicates a corrupt GPT partition, please post output of: fdisk -l /dev/sdX
September 30, 20214 yr Author The backup GPT table is not on the end of the device. Disk /dev/sdg: 14.55 TiB, 16000900661248 bytes, 31251759104 sectors Disk model: ST16000NM001G-2K 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: AE80D6C0-2559-45A3-B9DC-EA4409FE1E4E Device Start End Sectors Size Type /dev/sdg1 64 31249999838 31249999775 14.6T Linux filesystem
September 30, 20214 yr Community Expert gdisk should be able to fix that, see here: https://forums.unraid.net/topic/112243-solved-mount-error-unsupported-partition-layout/?do=findComment&comment=1023895 This should be fairly safe but always good to make sure backups are up to date before trying it, or clone the disk with dd first.
September 30, 20214 yr Author I tried with gdisk and w command but it's still unmountable. I'm just going to disable parity, mount it in unassigned devices, and copy the contents into the array via krusader, then wipe. it should preserve the data.
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.