[Bug 1716398] [NEW] “mount -a” command is not working for mdadm RAIDs

[hibi.sasahara@gmail.com]

Public bug reported:

I am trying to upgrade Ubuntu 16.04 64-bit to 17.10, and using mdadm
RAID array (two arrays of RAID0, RAID1).

But the mount -a command is not working for mdadm RAIDs.

Is this an issue on my machine, or a newer technical specification?

I set in /etc/fstab:

UUID=3b1ea9cc-4969-443f-b1f5-XXXX /home/ME/raid0 ext4 noatime     0 2
But it's not working. Even sudo mount -a command option is not working. It isn't being mounted.

But, if I type this:

sudo mount --uuid 3b1ea9cc-4969-443f-b1f5-XXXX /home/ME/raid0  
I can mount the disk!

** Affects: nplan (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: artful

** Attachment added: "dmesg | grep mount output (edited session key)"
   https://bugs.launchpad.net/bugs/1716398/+attachment/4947949/+files/mountlog.log

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https://bugs.launchpad.net/bugs/1716398

Title:
  “mount -a” command is not working for mdadm RAIDs

Status in nplan package in Ubuntu:
  New

Bug description:
  I am trying to upgrade Ubuntu 16.04 64-bit to 17.10, and using mdadm
  RAID array (two arrays of RAID0, RAID1).

  But the mount -a command is not working for mdadm RAIDs.

  Is this an issue on my machine, or a newer technical specification?

  I set in /etc/fstab:

  UUID=3b1ea9cc-4969-443f-b1f5-XXXX /home/ME/raid0 ext4 noatime     0 2
  But it's not working. Even sudo mount -a command option is not working. It isn't being mounted.

  But, if I type this:

  sudo mount --uuid 3b1ea9cc-4969-443f-b1f5-XXXX /home/ME/raid0  
  I can mount the disk!

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