[Bug 1468897] Re: multipath creates binding for Removable(USB) drives

[Jeff Lane]

** Tags added: hwcert-server

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Title:
  multipath creates binding for Removable(USB) drives

Status in multipath-tools package in Ubuntu:
  New

Bug description:
  On a system with a multipath configuration, multipath bindings are
  being created for removable(USB) drives rendering them inaccessible as
  normal removable drives.

  in this case, the usb drive is detected as /dev/sdi:

  # lsblk|grep -A2 sdi
  sdi                        8:128  1  14.7G  0 disk  
  ├─sdi1                     8:129  1  14.7G  0 part  
  └─mpath4 (dm-9)          252:9    0  14.7G  0 mpath 
    └─mpath4-part1 (dm-10) 252:10   0  14.7G  0 part  

  # cat /etc/multipath/bindings 
  # This file was created by curtin while installing the system.
  mpath0 1IBM     IPR-0   5EC2590000000080
  # End of content generated by curtin.
  # Everything below is maintained by multipath subsystem.
  mpath1 1IBM     IPR-0   5EC2590000000060
  mpath2 1IBM     IPR-0   5EC2590000000040
  mpath3 1IBM     IPR-0   5EC2590000000020
  mpath4 1ADATA   USB Flash Drive 

  Upon trying to format /dev/sdi1:

  # mkfs.ext4 /dev/sdi1
  mke2fs 1.42.9 (4-Feb-2014)
  /dev/sdi1 is apparently in use by the system; will not make a filesystem here!

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: multipath-tools 0.4.9-3ubuntu7.2
  ProcVersionSignature: User Name 3.16.0-41.55~14.04.1-generic 3.16.7-ckt11
  Uname: Linux 3.16.0-41-generic ppc64le
  ApportVersion: 2.14.1-0ubuntu3.10
  Architecture: ppc64el
  Date: Thu Jun 25 20:44:13 2015
  ProcEnviron:
   TERM=screen
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: multipath-tools
  UpgradeStatus: No upgrade log present (probably fresh install)

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