[Bug 1539968] [NEW] kpartx/device-mapper failing on invalid argument

[Ben Howard]

Public bug reported:

Xenial cloud images are broken due to a

+ backing_img=binary/boot/disk.ext4
++ kpartx -s -v -a binary/boot/disk.ext4
device-mapper: reload ioctl on loop0p1 failed: Invalid argument
create/reload failed on loop0p1
+ loop_raw='add map loop0p1 (0:0): 0 4608000 linear 0:0 2048'
+ clean_loops
+ '[' -z '' ']'

** Affects: multipath-tools (Ubuntu)
     Importance: Undecided
         Status: Invalid

** Changed in: multipath-tools (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1539968

Title:
  kpartx/device-mapper failing on invalid argument

Status in multipath-tools package in Ubuntu:
  Invalid

Bug description:
  Xenial cloud images are broken due to a

  + backing_img=binary/boot/disk.ext4
  ++ kpartx -s -v -a binary/boot/disk.ext4
  device-mapper: reload ioctl on loop0p1 failed: Invalid argument
  create/reload failed on loop0p1
  + loop_raw='add map loop0p1 (0:0): 0 4608000 linear 0:0 2048'
  + clean_loops
  + '[' -z '' ']'

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