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Unmountable: unsupported partition layout

Built2Succeed
in General Support

Featured Replies

this disk was working.  Had a power outage.  now the disk doesn't mount.

Things I've tried:

1. Upgraded to 6.11.3

2. Ran extended disk check with no errors

3. Read file system check/repair process documentation: this part i got stuck on as I'm unable to determine file system type

(it says 'auto' under file system)

 

Not sure how to proceed with Step 3 as the documentation is unclear

 

tower-diagnostics-20221111-1319.zip

  • Quote
    • Community Expert

    Please post output of: 

    fdisk -l /dev/sdb

     

  • Quote
    • Author
    25 minutes ago, JorgeB said:

    Please post output of: 

    fdisk -l /dev/sdb

     

    Disk /dev/sdb: 465.76 GiB, 500107862016 bytes, 976773168 sectors
    Disk model: ST500DM002-1BD14
    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: dos
    Disk identifier: 0x9dd17bc2

    Device     Boot   Start       End   Sectors   Size Id Type
    /dev/sdb1  *       2048   1050623   1048576   512M  b W95 FAT32
    /dev/sdb2       1052670 976771071 975718402 465.3G  5 Extended
    /dev/sdb5       1052672 976771071 975718400 465.3G 83 Linux

    Partition 2 does not start on physical sector boundary.

     

    Edited by Built2Succeed

  • Quote
    • Community Expert

    That disk doesn't the required Unraid partition layout, it will never mount in the array, you can see if it mounts with the UD plugin.

  • Quote
    • Author
    48 minutes ago, JorgeB said:

    That disk doesn't the required Unraid partition layout, it will never mount in the array, you can see if it mounts with the UD plugin.

    it was working fine for a long time. anyway, booted into maintenance mode.  running xfs repair from the GUI.  showing bad primary superblock. its attempting to find a secondary superblock. but it's been trying for almost an hour now.

  • Quote
    • Author
    Phase 1 - find and verify superblock...
bad primary superblock - bad magic number !!!

attempting to find secondary superblock...
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    27 minutes ago, Built2Succeed said:

    it was working fine for a long time.

    Not with that partition layout, some disks have been known to damage the partition after a power cut, don't ask me why but I've seen it before, Unraid uses the 1st partition only, and it requires the disk to only have one partition and that it uses the full disk capacity, your disk has multiple partitions and the 1st partition is 512MB, hence the "invalid partition layout problem", like mentioned see if the UD plugin can mount the disk, it doesn't care about the layout, as long as they are valid partitions, which by the looks of the fdisk output they might not be.

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    • Author
    1 hour ago, JorgeB said:

    Not with that partition layout, some disks have been known to damage the partition after a power cut, don't ask me why but I've seen it before, Unraid uses the 1st partition only, and it requires the disk to only have one partition and that it uses the full disk capacity, your disk has multiple partitions and the 1st partition is 512MB, hence the "invalid partition layout problem", like mentioned see if the UD plugin can mount the disk, it doesn't care about the layout, as long as they are valid partitions, which by the looks of the fdisk output they might not be.

    what is 'the UD plugin'.  I've searched for it under 'Apps' but can't find it

  • Quote
    • Author
    7 hours ago, JorgeB said:

    Not with that partition layout, some disks have been known to damage the partition after a power cut, don't ask me why but I've seen it before, Unraid uses the 1st partition only, and it requires the disk to only have one partition and that it uses the full disk capacity, your disk has multiple partitions and the 1st partition is 512MB, hence the "invalid partition layout problem", like mentioned see if the UD plugin can mount the disk, it doesn't care about the layout, as long as they are valid partitions, which by the looks of the fdisk output they might not be.

    Unable to mount with UD plugin.  Should I try Ubuntu Live and a disk repair utility?  The exended smart check says no errors.   I'm unsure how to proceed.

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    I'm getting this same error, I pre cleared the disks several times, when using UD to format, it says is successfully formatted but it doesn't show what FS it is to the right. 

     

    I can format it to any other fs except for xfs or btrfs

    and I have 8 drives

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    • Community Expert
    2 hours ago, Vylo said:

    I'm getting this same error

    If you are using v6.11.2 upgrade to v6.11.3, if not please post the diagnostics. 

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    • Author
    18 hours ago, Built2Succeed said:

    Unable to mount with UD plugin.  Should I try Ubuntu Live and a disk repair utility?  The exended smart check says no errors.   I'm unsure how to proceed.

    I'm unable to mount with the UD plugin.  what can i do next?  I'm lost.

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    • Community Expert

    I would try testdisk first to see if it can recover the old partition, other option would be to create a new partition with the correct layout and hope the filesystem is still valid.

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    • Author
    7 hours ago, JorgeB said:

    I would try testdisk first to see if it can recover the old partition, other option would be to create a new partition with the correct layout and hope the filesystem is still valid.

    thank you.  i'll give it a try.  

     

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