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virtuvious
Asked: 2016-05-28 06:39:50 +0800 CST

error on ec2 volume mount

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Am getting the following error while trying to mount a ec2 volume

[ec2-user@ip-172-XX-XX-XX-XX ~]$ sudo mount /dev/xvdf /mnt
mount: /dev/xvdf is write-protected, mounting read-only
mount: unknown filesystem type '(null)'

Also, tried to mount the part as below

[ec2-user@ip-172-XX-XX-XX ~]$ sudo mount /dev/xvdf2 /mnt
    mount: wrong fs type, bad option, bad superblock on /dev/xvdf2,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
mount amazon-ec2 disk-volume

1 Answers

  1. Posting the solution that worked for me as I did not find this else where.....

    First checked the dmesg to see the actual error

    dmesg | tail

    and found the error with duplicate UUID

    [180875.598481] XFS (xvdf2): Filesystem has duplicate UUID 379de64d-ea11-4f5b-ae6a-0aa50ff7b24d - can't mount
[180970.058345] XFS (xvdf2): Filesystem has duplicate UUID 379de64d-ea11-4f5b-ae6a-0aa50ff7b24d - can't mount

    so to fix this use the nouuid option

    [ec2-user@ip-172-XX-XX-XX ~]$ sudo mount -o nouuid /dev/xvdf2 /mnt
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