Unable to Mount Partition from NAS RAID Array to Recover Data












0















Ubuntu newbie question. Similar questions are asked here but that relates to motherboard and here, but that does not address "mounting" issues.



I have one disk of a 2 disk raid1 array that failed in the raid device. The manufacturer and subsequent investigation indicates it is formatted as a linux disk.



fdisk -l displays



Device       Start        End    Sectors   Size Type
/dev/sdb1 41 1953 1913 956.5K Microsoft basic data
/dev/sdb2 ...
...
/dev/sdb9 6504448 8503295 1998848 976M Microsoft basic data
/dev/sdb10 8503296 7814035254 7805531959 3.6T Microsoft basic data


I run




sudo mount /dev/sdb10 /media/seagate




and get



mount: /media/seagate: unknown filesystem type 'linux_raid_member'.


Following the advice here I ran




sudo mdadm --assemble --run /dev/md0 /dev/sdb10




producing:



mdadm: /dev/sdb10 is busy - skipping


mdadm --examine produces



         Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : e733e938:772dc035:5c104e46:4d4fe2da
Name : BA-001075384F44:8
Creation Time : Wed Apr 24 18:37:09 2013
Raid Level : raid1
Raid Devices : 2

Avail Dev Size : 7805529911 (3721.97 GiB 3996.43 GB)
Array Size : 3902764819 (3721.97 GiB 3996.43 GB)
Used Dev Size : 7805529638 (3721.97 GiB 3996.43 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
Unused Space : before=1968 sectors, after=273 sectors
State : clean
Device UUID : b8ca69f9:bba3bbc2:33f7033e:67308d4f

Update Time : Fri Dec 14 13:54:41 2018
Checksum : a891168f - correct
Events : 2


Device Role : Active device 0
Array State : AA ('A' == active, '.' == missing, 'R' == replacing)


One final question was posted here but according to @Ian, the question was never answered satisfactorily.



I am at an impasse it seems. Can anyone point me in the right direction for mounting this partition and (hopefully) recovering the data on it?



Thanks in advance.



Well, made some headway. Used these instructions and I can see the LVM both in terminal window and in GUI interface.



But then:



mount /dev/vg8/lv8 /mnt/sd1 


Generates:
“Wrong fs type, bad option, bad superblock on /dev/mapper/vg8-lv8,
missing codepage or helper program, or other error”



Followed the advice and used



mkfs.ext4 /dev/vg8/lv8  


But got message



/dev/vg8/lv8 contains a ext4 file system
last mounted on /shares/public on Tue Sept 16 20:00:52 1975
Proceed anyway?


JerryFrey suggested using a file recovery such as foremost. But don't I have to mount the partition first?










share|improve this question





























    0















    Ubuntu newbie question. Similar questions are asked here but that relates to motherboard and here, but that does not address "mounting" issues.



    I have one disk of a 2 disk raid1 array that failed in the raid device. The manufacturer and subsequent investigation indicates it is formatted as a linux disk.



    fdisk -l displays



    Device       Start        End    Sectors   Size Type
    /dev/sdb1 41 1953 1913 956.5K Microsoft basic data
    /dev/sdb2 ...
    ...
    /dev/sdb9 6504448 8503295 1998848 976M Microsoft basic data
    /dev/sdb10 8503296 7814035254 7805531959 3.6T Microsoft basic data


    I run




    sudo mount /dev/sdb10 /media/seagate




    and get



    mount: /media/seagate: unknown filesystem type 'linux_raid_member'.


    Following the advice here I ran




    sudo mdadm --assemble --run /dev/md0 /dev/sdb10




    producing:



    mdadm: /dev/sdb10 is busy - skipping


    mdadm --examine produces



             Magic : a92b4efc
    Version : 1.2
    Feature Map : 0x0
    Array UUID : e733e938:772dc035:5c104e46:4d4fe2da
    Name : BA-001075384F44:8
    Creation Time : Wed Apr 24 18:37:09 2013
    Raid Level : raid1
    Raid Devices : 2

    Avail Dev Size : 7805529911 (3721.97 GiB 3996.43 GB)
    Array Size : 3902764819 (3721.97 GiB 3996.43 GB)
    Used Dev Size : 7805529638 (3721.97 GiB 3996.43 GB)
    Data Offset : 2048 sectors
    Super Offset : 8 sectors
    Unused Space : before=1968 sectors, after=273 sectors
    State : clean
    Device UUID : b8ca69f9:bba3bbc2:33f7033e:67308d4f

    Update Time : Fri Dec 14 13:54:41 2018
    Checksum : a891168f - correct
    Events : 2


    Device Role : Active device 0
    Array State : AA ('A' == active, '.' == missing, 'R' == replacing)


    One final question was posted here but according to @Ian, the question was never answered satisfactorily.



    I am at an impasse it seems. Can anyone point me in the right direction for mounting this partition and (hopefully) recovering the data on it?



    Thanks in advance.



    Well, made some headway. Used these instructions and I can see the LVM both in terminal window and in GUI interface.



    But then:



    mount /dev/vg8/lv8 /mnt/sd1 


    Generates:
    “Wrong fs type, bad option, bad superblock on /dev/mapper/vg8-lv8,
    missing codepage or helper program, or other error”



    Followed the advice and used



    mkfs.ext4 /dev/vg8/lv8  


    But got message



    /dev/vg8/lv8 contains a ext4 file system
    last mounted on /shares/public on Tue Sept 16 20:00:52 1975
    Proceed anyway?


    JerryFrey suggested using a file recovery such as foremost. But don't I have to mount the partition first?










    share|improve this question



























      0












      0








      0








      Ubuntu newbie question. Similar questions are asked here but that relates to motherboard and here, but that does not address "mounting" issues.



      I have one disk of a 2 disk raid1 array that failed in the raid device. The manufacturer and subsequent investigation indicates it is formatted as a linux disk.



      fdisk -l displays



      Device       Start        End    Sectors   Size Type
      /dev/sdb1 41 1953 1913 956.5K Microsoft basic data
      /dev/sdb2 ...
      ...
      /dev/sdb9 6504448 8503295 1998848 976M Microsoft basic data
      /dev/sdb10 8503296 7814035254 7805531959 3.6T Microsoft basic data


      I run




      sudo mount /dev/sdb10 /media/seagate




      and get



      mount: /media/seagate: unknown filesystem type 'linux_raid_member'.


      Following the advice here I ran




      sudo mdadm --assemble --run /dev/md0 /dev/sdb10




      producing:



      mdadm: /dev/sdb10 is busy - skipping


      mdadm --examine produces



               Magic : a92b4efc
      Version : 1.2
      Feature Map : 0x0
      Array UUID : e733e938:772dc035:5c104e46:4d4fe2da
      Name : BA-001075384F44:8
      Creation Time : Wed Apr 24 18:37:09 2013
      Raid Level : raid1
      Raid Devices : 2

      Avail Dev Size : 7805529911 (3721.97 GiB 3996.43 GB)
      Array Size : 3902764819 (3721.97 GiB 3996.43 GB)
      Used Dev Size : 7805529638 (3721.97 GiB 3996.43 GB)
      Data Offset : 2048 sectors
      Super Offset : 8 sectors
      Unused Space : before=1968 sectors, after=273 sectors
      State : clean
      Device UUID : b8ca69f9:bba3bbc2:33f7033e:67308d4f

      Update Time : Fri Dec 14 13:54:41 2018
      Checksum : a891168f - correct
      Events : 2


      Device Role : Active device 0
      Array State : AA ('A' == active, '.' == missing, 'R' == replacing)


      One final question was posted here but according to @Ian, the question was never answered satisfactorily.



      I am at an impasse it seems. Can anyone point me in the right direction for mounting this partition and (hopefully) recovering the data on it?



      Thanks in advance.



      Well, made some headway. Used these instructions and I can see the LVM both in terminal window and in GUI interface.



      But then:



      mount /dev/vg8/lv8 /mnt/sd1 


      Generates:
      “Wrong fs type, bad option, bad superblock on /dev/mapper/vg8-lv8,
      missing codepage or helper program, or other error”



      Followed the advice and used



      mkfs.ext4 /dev/vg8/lv8  


      But got message



      /dev/vg8/lv8 contains a ext4 file system
      last mounted on /shares/public on Tue Sept 16 20:00:52 1975
      Proceed anyway?


      JerryFrey suggested using a file recovery such as foremost. But don't I have to mount the partition first?










      share|improve this question
















      Ubuntu newbie question. Similar questions are asked here but that relates to motherboard and here, but that does not address "mounting" issues.



      I have one disk of a 2 disk raid1 array that failed in the raid device. The manufacturer and subsequent investigation indicates it is formatted as a linux disk.



      fdisk -l displays



      Device       Start        End    Sectors   Size Type
      /dev/sdb1 41 1953 1913 956.5K Microsoft basic data
      /dev/sdb2 ...
      ...
      /dev/sdb9 6504448 8503295 1998848 976M Microsoft basic data
      /dev/sdb10 8503296 7814035254 7805531959 3.6T Microsoft basic data


      I run




      sudo mount /dev/sdb10 /media/seagate




      and get



      mount: /media/seagate: unknown filesystem type 'linux_raid_member'.


      Following the advice here I ran




      sudo mdadm --assemble --run /dev/md0 /dev/sdb10




      producing:



      mdadm: /dev/sdb10 is busy - skipping


      mdadm --examine produces



               Magic : a92b4efc
      Version : 1.2
      Feature Map : 0x0
      Array UUID : e733e938:772dc035:5c104e46:4d4fe2da
      Name : BA-001075384F44:8
      Creation Time : Wed Apr 24 18:37:09 2013
      Raid Level : raid1
      Raid Devices : 2

      Avail Dev Size : 7805529911 (3721.97 GiB 3996.43 GB)
      Array Size : 3902764819 (3721.97 GiB 3996.43 GB)
      Used Dev Size : 7805529638 (3721.97 GiB 3996.43 GB)
      Data Offset : 2048 sectors
      Super Offset : 8 sectors
      Unused Space : before=1968 sectors, after=273 sectors
      State : clean
      Device UUID : b8ca69f9:bba3bbc2:33f7033e:67308d4f

      Update Time : Fri Dec 14 13:54:41 2018
      Checksum : a891168f - correct
      Events : 2


      Device Role : Active device 0
      Array State : AA ('A' == active, '.' == missing, 'R' == replacing)


      One final question was posted here but according to @Ian, the question was never answered satisfactorily.



      I am at an impasse it seems. Can anyone point me in the right direction for mounting this partition and (hopefully) recovering the data on it?



      Thanks in advance.



      Well, made some headway. Used these instructions and I can see the LVM both in terminal window and in GUI interface.



      But then:



      mount /dev/vg8/lv8 /mnt/sd1 


      Generates:
      “Wrong fs type, bad option, bad superblock on /dev/mapper/vg8-lv8,
      missing codepage or helper program, or other error”



      Followed the advice and used



      mkfs.ext4 /dev/vg8/lv8  


      But got message



      /dev/vg8/lv8 contains a ext4 file system
      last mounted on /shares/public on Tue Sept 16 20:00:52 1975
      Proceed anyway?


      JerryFrey suggested using a file recovery such as foremost. But don't I have to mount the partition first?







      ubuntu hard-drive raid data-recovery nas






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Dec 28 '18 at 6:09







      PhillipOReilly

















      asked Dec 21 '18 at 19:12









      PhillipOReillyPhillipOReilly

      137210




      137210






















          1 Answer
          1






          active

          oldest

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          1














          Answers mentioned here https://unix.stackexchange.com/questions/64889/how-to-mount-recover-data-on-a-disk-that-was-part-of-a-mdadm-raid-1-on-another-m may help you.



          There is one more option to recover data, use Data Recovery software. The software can ease you task and avoid the risk of losing data.



          But, try to mount the partition first.






          share|improve this answer
























          • thanks for the pointer. I made some progress. See my additional notes in question. . I was going to try foremost, but it appears that I still need to mount the partition first. You know whether that is correct?

            – PhillipOReilly
            Dec 28 '18 at 5:57











          • You got me on the right track, so I marked your answer as correct. Thanks.

            – PhillipOReilly
            Jan 1 at 16:34






          • 1





            Did you find the solution? If yes, Please mention which one helped you. So that it will help other users as well with relevant query.

            – JerryFrey
            Jan 2 at 5:42











          • yes I did. I detail some of this in the update to the question above. The rest I detail here: askubuntu.com/a/1106046/906115

            – PhillipOReilly
            Jan 2 at 21:18











          Your Answer








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          Answers mentioned here https://unix.stackexchange.com/questions/64889/how-to-mount-recover-data-on-a-disk-that-was-part-of-a-mdadm-raid-1-on-another-m may help you.



          There is one more option to recover data, use Data Recovery software. The software can ease you task and avoid the risk of losing data.



          But, try to mount the partition first.






          share|improve this answer
























          • thanks for the pointer. I made some progress. See my additional notes in question. . I was going to try foremost, but it appears that I still need to mount the partition first. You know whether that is correct?

            – PhillipOReilly
            Dec 28 '18 at 5:57











          • You got me on the right track, so I marked your answer as correct. Thanks.

            – PhillipOReilly
            Jan 1 at 16:34






          • 1





            Did you find the solution? If yes, Please mention which one helped you. So that it will help other users as well with relevant query.

            – JerryFrey
            Jan 2 at 5:42











          • yes I did. I detail some of this in the update to the question above. The rest I detail here: askubuntu.com/a/1106046/906115

            – PhillipOReilly
            Jan 2 at 21:18
















          1














          Answers mentioned here https://unix.stackexchange.com/questions/64889/how-to-mount-recover-data-on-a-disk-that-was-part-of-a-mdadm-raid-1-on-another-m may help you.



          There is one more option to recover data, use Data Recovery software. The software can ease you task and avoid the risk of losing data.



          But, try to mount the partition first.






          share|improve this answer
























          • thanks for the pointer. I made some progress. See my additional notes in question. . I was going to try foremost, but it appears that I still need to mount the partition first. You know whether that is correct?

            – PhillipOReilly
            Dec 28 '18 at 5:57











          • You got me on the right track, so I marked your answer as correct. Thanks.

            – PhillipOReilly
            Jan 1 at 16:34






          • 1





            Did you find the solution? If yes, Please mention which one helped you. So that it will help other users as well with relevant query.

            – JerryFrey
            Jan 2 at 5:42











          • yes I did. I detail some of this in the update to the question above. The rest I detail here: askubuntu.com/a/1106046/906115

            – PhillipOReilly
            Jan 2 at 21:18














          1












          1








          1







          Answers mentioned here https://unix.stackexchange.com/questions/64889/how-to-mount-recover-data-on-a-disk-that-was-part-of-a-mdadm-raid-1-on-another-m may help you.



          There is one more option to recover data, use Data Recovery software. The software can ease you task and avoid the risk of losing data.



          But, try to mount the partition first.






          share|improve this answer













          Answers mentioned here https://unix.stackexchange.com/questions/64889/how-to-mount-recover-data-on-a-disk-that-was-part-of-a-mdadm-raid-1-on-another-m may help you.



          There is one more option to recover data, use Data Recovery software. The software can ease you task and avoid the risk of losing data.



          But, try to mount the partition first.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Dec 27 '18 at 5:42









          JerryFreyJerryFrey

          611




          611













          • thanks for the pointer. I made some progress. See my additional notes in question. . I was going to try foremost, but it appears that I still need to mount the partition first. You know whether that is correct?

            – PhillipOReilly
            Dec 28 '18 at 5:57











          • You got me on the right track, so I marked your answer as correct. Thanks.

            – PhillipOReilly
            Jan 1 at 16:34






          • 1





            Did you find the solution? If yes, Please mention which one helped you. So that it will help other users as well with relevant query.

            – JerryFrey
            Jan 2 at 5:42











          • yes I did. I detail some of this in the update to the question above. The rest I detail here: askubuntu.com/a/1106046/906115

            – PhillipOReilly
            Jan 2 at 21:18



















          • thanks for the pointer. I made some progress. See my additional notes in question. . I was going to try foremost, but it appears that I still need to mount the partition first. You know whether that is correct?

            – PhillipOReilly
            Dec 28 '18 at 5:57











          • You got me on the right track, so I marked your answer as correct. Thanks.

            – PhillipOReilly
            Jan 1 at 16:34






          • 1





            Did you find the solution? If yes, Please mention which one helped you. So that it will help other users as well with relevant query.

            – JerryFrey
            Jan 2 at 5:42











          • yes I did. I detail some of this in the update to the question above. The rest I detail here: askubuntu.com/a/1106046/906115

            – PhillipOReilly
            Jan 2 at 21:18

















          thanks for the pointer. I made some progress. See my additional notes in question. . I was going to try foremost, but it appears that I still need to mount the partition first. You know whether that is correct?

          – PhillipOReilly
          Dec 28 '18 at 5:57





          thanks for the pointer. I made some progress. See my additional notes in question. . I was going to try foremost, but it appears that I still need to mount the partition first. You know whether that is correct?

          – PhillipOReilly
          Dec 28 '18 at 5:57













          You got me on the right track, so I marked your answer as correct. Thanks.

          – PhillipOReilly
          Jan 1 at 16:34





          You got me on the right track, so I marked your answer as correct. Thanks.

          – PhillipOReilly
          Jan 1 at 16:34




          1




          1





          Did you find the solution? If yes, Please mention which one helped you. So that it will help other users as well with relevant query.

          – JerryFrey
          Jan 2 at 5:42





          Did you find the solution? If yes, Please mention which one helped you. So that it will help other users as well with relevant query.

          – JerryFrey
          Jan 2 at 5:42













          yes I did. I detail some of this in the update to the question above. The rest I detail here: askubuntu.com/a/1106046/906115

          – PhillipOReilly
          Jan 2 at 21:18





          yes I did. I detail some of this in the update to the question above. The rest I detail here: askubuntu.com/a/1106046/906115

          – PhillipOReilly
          Jan 2 at 21:18


















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