September 17, 2025Sep 17 I have two disks that I can't get mounted. I don't recall these two disks being unmounted in the past. I just happened to look in the Main tab in Unraid today and noticed both of these weren't mounted.The log tells me that I should run xfs repair on the disk. That doesn't appear to help anyone from what I've been able to read in the comments. The Mount button is greyed out on the other disk ("Dev 2") so I don't know how I can even attempt to mount it.Any idea how I can get these two drives mounted? Also, did I lose any data or was all of the data recovered using my other drives?Below are screenshots showing the unmounted disks and the error I receive when I attempt to mount "Dev 1." I've also attached the Unraid log. adamnas-syslog-20250917-0122.zip
September 17, 2025Sep 17 Author 3 hours ago, JorgeB said:Post the output from blkidIs this correct?root@AdamNAS:~# blkid /dev/sda1: LABEL_FATBOOT="UNRAID" LABEL="UNRAID" UUID="2736-60C3" BLOCK_SIZE="512" TYPE="vfat" /dev/loop1: TYPE="squashfs" /dev/sdy1: UUID="2a2cca95-85bc-499d-a01d-5bc27078dddd" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="7e31c44b-f123-40dd-a67e-5992250dac55" /dev/sdf1: UUID="75f9d0ec-3a38-433e-b12b-7c0cddc37b44" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="139e5605-cf3f-462a-bae1-0699343b183e" /dev/md9p1: UUID="01d2b033-56eb-4a92-8140-e7a2c67c723e" BLOCK_SIZE="512" TYPE="xfs" /dev/md24p1: UUID="5cbca378-bebc-4350-b0ae-9a25b89694ef" BLOCK_SIZE="512" TYPE="xfs" /dev/sdab1: UUID="5cbca378-bebc-4350-b0ae-9a25b89694ef" BLOCK_SIZE="512" TYPE="xfs" /dev/nvme0n1p1: UUID="344c99ee-b4f3-4f0f-b5e7-7aaee08452db" UUID_SUB="909b61da-ebe7-48df-b330-3b9ef31d34a2" BLOCK_SIZE="4096" TYPE="btrfs" /dev/md15p1: UUID="a35a64da-1fc6-4f28-be6a-a8be2635cfa5" BLOCK_SIZE="512" TYPE="xfs" /dev/sdo1: UUID="a2c39444-e2c1-4e83-9774-2d256d5731c6" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="feeb342c-6327-49f2-a12d-1fb2bbc211a4" /dev/sdw1: UUID="c824f10f-5b50-48ab-9a98-5b2bee9959ec" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="c70a31ee-1968-4173-848d-147c33045def" /dev/sdd1: UUID="7a894f21-5d44-4d0a-9c3b-baa0b302946a" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="9d94fbfe-f13a-45b4-837b-82667e5ecafe" /dev/md2p1: UUID="5c3f92e6-0b17-4086-809b-f72ce2324007" BLOCK_SIZE="512" TYPE="xfs" /dev/md18p1: UUID="47686ff8-cb47-46fc-8f1d-a6936eab73cc" BLOCK_SIZE="512" TYPE="xfs" /dev/sdm1: UUID="b8947b2a-5d63-4579-a200-64ff0edd0b4c" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="d32a0e1e-1bb5-4b81-bbf5-bc56ae66488e" /dev/sdu1: UUID="939316bb-0aee-4c42-a23f-3839a624e325" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="41f4fe70-c973-427f-9791-2a652067d59a" /dev/sdb1: UUID="7cac0bbb-7684-4770-81eb-a895d087e38d" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="4ffe5da3-d79c-417e-aa6b-4740c6f092ec" /dev/md5p1: UUID="a97b1e67-ef02-4cb2-b8d2-8127b90269af" BLOCK_SIZE="512" TYPE="xfs" /dev/md20p1: UUID="fa6c6f67-cd60-4455-8be1-e75f19bbda88" BLOCK_SIZE="512" TYPE="xfs" /dev/sdk1: UUID="adf5de3b-0356-4037-8014-e5589c82c679" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="e4e6b69b-e60c-4848-a1eb-63a7540c2f5b" /dev/md11p1: UUID="612ec3b3-438d-4dc6-a970-d93ccbe3d49d" BLOCK_SIZE="512" TYPE="xfs" /dev/sds1: UUID="a35a64da-1fc6-4f28-be6a-a8be2635cfa5" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="667314ed-7221-4313-a555-07b7e1aea25f" /dev/md8p1: UUID="319360c3-4cf1-4169-a0eb-ba7a59bde24d" BLOCK_SIZE="512" TYPE="xfs" /dev/md23p1: UUID="5e0928e9-591a-4557-a88b-02bc2512b85e" BLOCK_SIZE="512" TYPE="xfs" /dev/md14p1: UUID="c8a417b0-ac7b-43a3-9c1b-602a6660f499" BLOCK_SIZE="512" TYPE="xfs" /dev/sdi1: UUID="01d2b033-56eb-4a92-8140-e7a2c67c723e" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="41e27694-0d4e-4533-b2df-dcc5a4c335ee" /dev/sdq1: UUID="c8a417b0-ac7b-43a3-9c1b-602a6660f499" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="32d2d244-ad46-44b7-8800-c4681355d25c" /dev/md1p1: UUID="75f9d0ec-3a38-433e-b12b-7c0cddc37b44" BLOCK_SIZE="512" TYPE="xfs" /dev/sdz1: UUID="82df71e7-39c0-496a-a478-2e993805fe84" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="61dd3ba6-23a7-4a9d-aa39-557b1a5d4838" /dev/md17p1: UUID="939316bb-0aee-4c42-a23f-3839a624e325" BLOCK_SIZE="512" TYPE="xfs" /dev/sdg1: UUID="dc259314-267a-4920-a063-c4da71bb36c9" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="a8706993-478e-4e4b-a2a9-4924e3bf6de6" /dev/md4p1: UUID="b8947b2a-5d63-4579-a200-64ff0edd0b4c" BLOCK_SIZE="512" TYPE="xfs" /dev/loop0: TYPE="squashfs" /dev/sdx1: UUID="fa6c6f67-cd60-4455-8be1-e75f19bbda88" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="f342fc87-40a9-4e1e-9f4d-42a054aaaf6e" /dev/sdaa1: UUID="5e0928e9-591a-4557-a88b-02bc2512b85e" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="4795e3a7-7c38-4e16-b077-2033ded1ea3a" /dev/md10p1: UUID="dc259314-267a-4920-a063-c4da71bb36c9" BLOCK_SIZE="512" TYPE="xfs" /dev/md7p1: UUID="adf5de3b-0356-4037-8014-e5589c82c679" BLOCK_SIZE="512" TYPE="xfs" /dev/sdn1: UUID="9bc821c4-c5ce-4ea1-8a4d-9bbc38ab963f" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="5380f5c8-95cb-4b07-a58c-3ca630ea44c0" /dev/md22p1: UUID="2a2cca95-85bc-499d-a01d-5bc27078dddd" BLOCK_SIZE="512" TYPE="xfs" /dev/sdv1: UUID="47686ff8-cb47-46fc-8f1d-a6936eab73cc" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="13461bc2-ce77-42b8-8283-24f95b6cb381" /dev/sdl1: UUID="a97b1e67-ef02-4cb2-b8d2-8127b90269af" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="9446ecdc-334b-46a8-ab1b-957ca576b7ac" /dev/sdt1: UUID="5039051f-fbf5-4a89-bc8a-d051d362681c" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="592f0896-bd2e-4b74-a617-864794da6b81" /dev/md16p1: UUID="82df71e7-39c0-496a-a478-2e993805fe84" BLOCK_SIZE="512" TYPE="xfs" /dev/sdj1: UUID="319360c3-4cf1-4169-a0eb-ba7a59bde24d" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="f0f7ef4d-fe93-41d0-bbad-2faf7200fe4f" /dev/md3p1: UUID="7cac0bbb-7684-4770-81eb-a895d087e38d" BLOCK_SIZE="512" TYPE="xfs" /dev/sdr1: UUID="612ec3b3-438d-4dc6-a970-d93ccbe3d49d" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="8d261e3e-6664-4167-8004-20ee2410e00f" /dev/md19p1: UUID="9bc821c4-c5ce-4ea1-8a4d-9bbc38ab963f" BLOCK_SIZE="512" TYPE="xfs" /dev/sdh1: UUID="5c3f92e6-0b17-4086-809b-f72ce2324007" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="d1c02c79-3e45-4804-8ec9-be020223bb68" /dev/md6p1: UUID="7a894f21-5d44-4d0a-9c3b-baa0b302946a" BLOCK_SIZE="512" TYPE="xfs" /dev/md21p1: UUID="c824f10f-5b50-48ab-9a98-5b2bee9959ec" BLOCK_SIZE="512" TYPE="xfs" /dev/md12p1: UUID="a2c39444-e2c1-4e83-9774-2d256d5731c6" BLOCK_SIZE="512" TYPE="xfs" /dev/loop2: UUID="3d262e10-4bbb-4e31-81d3-9fd8d2ea4482" UUID_SUB="cae900b1-0a19-4150-bcd1-ef25d0a4575b" BLOCK_SIZE="4096" TYPE="btrfs" /dev/sde1: PARTUUID="14d387da-b710-49d3-8a91-345dcf9458fb" /dev/sdc1: PARTUUID="dfe0aca6-eac0-4d67-b17c-a27e44e4e4af" /dev/loop3: UUID="80d91b4d-599f-409f-a343-e5e028ac3f84" UUID_SUB="685c96dd-d859-4b16-9386-d6f5d193702c" BLOCK_SIZE="4096" TYPE="btrfs" /dev/sdp1: PARTUUID="c2b135b9-8332-11ed-9f01-841b7729c4a2" root@AdamNAS:~#
September 17, 2025Sep 17 Community Expert Now output from:xfs_repair -v /dev/sdt1and wipefs /dev/sdp1
September 17, 2025Sep 17 Author 12 hours ago, JorgeB said:Now output from:xfs_repair -v /dev/sdt1andwipefs /dev/sdp1Will this clear anything on the drive if there was something? Just want to know before I try running them.
September 18, 2025Sep 18 Community Expert 6 hours ago, Dinglestains said:Will this clear anything on the drive if there was something?Not as written, it will just show if there are any filesystem signatures on the disk; blkid won't show them if there's more than one.
September 18, 2025Sep 18 Author 3 hours ago, JorgeB said:Not as written, it will just show if there are any filesystem signatures on the disk; blkid won't show them if there's more than one.Thanks. Here's what I get when I enter those two commands.root@AdamNAS:~# xfs_repair -v /dev/sdt1 Phase 1 - find and verify superblock... - block cache size set to 12287368 entries Phase 2 - using internal log - zero log... * ERROR: mismatched uuid in log * SB : 5039051f-fbf5-4a89-bc8a-d051d362681c * log: 1f85b4a8-9091-00d4-8094-6d04e9d2bca1 zero_log: head block 412672 tail block 2262025269 ERROR: The filesystem has valuable metadata changes in a log which needs to be replayed. Mount the filesystem to replay the log, and unmount it before re-running xfs_repair. If you are unable to mount the filesystem, then use the -L option to destroy the log and attempt a repair. Note that destroying the log may cause corruption -- please attempt a mount of the filesystem before doing this. root@AdamNAS:~# wipefs /dev/sdp1 root@AdamNAS:~#
September 18, 2025Sep 18 Community Expert Add -L xfs_repair -vL /dev/sdt1The other disk doesn't have a valid filesystem signature, so there's no way to mount it. You can try a file recovery app like UFS Explorer; the free trial should show if it can recover anything.
September 18, 2025Sep 18 Author The output of that one was too large where I couldn't scroll to the beginning. Any idea where I can find the full output of the command to share?
September 19, 2025Sep 19 Community Expert xfs_repair -v /dev/sdt1Run it again without -L and post that output.
September 19, 2025Sep 19 Author 3 hours ago, JorgeB said:xfs_repair -v /dev/sdt1Run it again without -L and post that output.Here's the output for this one.root@AdamNAS:~# xfs_repair -v /dev/sdt1 Phase 1 - find and verify superblock... - block cache size set to 12287368 entries Phase 2 - using internal log - zero log... zero_log: head block 0 tail block 0 - scan filesystem freespace and inode maps... clearing needsrepair flag and regenerating metadata sb_icount 204160, counted 32 sb_ifree 186, counted 29 sb_fdblocks 3646991750, counted 2929199533 - found root inode chunk Phase 3 - for each AG... - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 8 - agno = 9 - agno = 10 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 0 - agno = 2 - agno = 6 - agno = 4 - agno = 10 - agno = 1 - agno = 7 - agno = 8 - agno = 9 - agno = 3 - agno = 5 Phase 5 - rebuild AG headers and trees... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 8 - agno = 9 - agno = 10 - reset superblock... Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 8 - agno = 9 - agno = 10 - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify and correct link counts... SB summary counter sanity check failed Metadata corruption detected at 0x47c2cb, xfs_sb block 0x0/0x200 libxfs_bwrite: write verifier failed on xfs_sb bno 0x0/0x1 SB summary counter sanity check failed Metadata corruption detected at 0x47c2cb, xfs_sb block 0x0/0x200 libxfs_bwrite: write verifier failed on xfs_sb bno 0x0/0x1 xfs_repair: Releasing dirty buffer to free list! xfs_repair: Refusing to write a corrupt buffer to the data device! xfs_repair: Lost a write to the data device! fatal error -- File system metadata writeout failed, err=117. Re-run xfs_repair. root@AdamNAS:~#
September 19, 2025Sep 19 Community Expert Xfs_repair is unable to completely repair the filesystem, UFS explorer is likely also the best option to try and recover anything from that disk.
September 19, 2025Sep 19 Author 22 minutes ago, JorgeB said:Xfs_repair is unable to completely repair the filesystem, UFS explorer is likely also the best option to try and recover anything from that disk.Thanks for trying to help me out. I've searched Unraid apps and don't see one named UFS Explorer. Is this an app I'll need to use on a Windows PC and pull the drive out of the server to check out?Also, any idea how I can get the other drive mounted?
September 19, 2025Sep 19 Community Expert https://www.ufsexplorer.com/ufs-explorer-standard-recovery/
September 20, 2025Sep 20 Author Thanks. I'll check it out.Is there a way to get these two drives mounted if I'm not worried about recovering any data that may have been on them?
September 21, 2025Sep 21 Community Expert 14 hours ago, Dinglestains said:Is there a way to get these two drives mounted if I'm not worried about recovering any data that may have been on them?Yes, you would just need to reformat them.
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