[Bug 875636] Re: usbmount doesn't auto-mount external harddrive anymore in oneiric

[Evan Broder]

e-frog: Thanks for tracking down this patch. I've uploaded the fix to
oneiric-proposed; someone from the SRU team should process it within the
next few days.

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Title:
  usbmount doesn't auto-mount external harddrive anymore in oneiric

Status in “usbmount” package in Ubuntu:
  Fix Released
Status in “usbmount” source package in Oneiric:
  New

Bug description:
  [Impact]
  usbmount doesn't auto-mount external hard drive in Oneiric. This is considered a regression as it used to work in natty.
  usbmount relies on /sbin/blkid to determine the file system type. blkid output is different in Oneiric and the regex fails to catch the file system type.

  [Development Fix]
  This was fixed in Debian package 0.0.22 and is meanwhile sync’d to Precise.

  [Stable Fix]
  The attached patch back ports the fix from Debian.

  [Test Case]
  Please see original report below.

  [Regression Potential]
  The patch itself is relatively small and unlikely to introduce regression.

  [Original Report]
  $: lsb_release -rd
  Description:    Ubuntu 11.10
  Release:        11.10

  $: apt-cache policy usbmount
  usbmount:
    Installed: 0.0.21
    Candidate: 0.0.21
    Version table:
   *** 0.0.21 0
          500 http://de.archive.ubuntu.com/ubuntu/ oneiric/universe i386 Packages
          100 /var/lib/dpkg/status

  usbmount uses '/sbin/blkid -p /dev/sdb1' to determine the filesystem
  type. It seems that the output of blkid changed from natty to oneiric:

  natty:
  $:/sbin/blkid -p /dev/sdb1
  /dev/sdb1: UUID="ff3637e4-2a20-4a81-a276-93bea80e1bfa" VERSION="1.0" TYPE="ext3" USAGE="filesystem"

  oneiric:
  $:/sbin/blkid -p /dev/sdb1
  /dev/sdb1: UUID="ff3637e4-2a20-4a81-a276-93bea80e1bfa" VERSION="1.0" TYPE="ext3" USAGE="filesystem" PART_ENTRY_SCHEME="dos" PART_ENTRY_TYPE="0x83" PART_ENTRY_FLAGS="0x80" PART_ENTRY_NUMBER="1"

  The regexp in

  FSTYPE=$(echo "$DEVINFO" | sed 's/.* TYPE="\([^"]*\)".*/\1/g;
  s/[[:blank:]]*//g;')

  triggers on PART_ENTRY_TYPE which finds '0x83' as file system type and
  prevents it from being mounted.

  Attached patch fixes this for me.

  Logs before the patch:

  Oct 15 19:39:33 eeebox usbmount[814]: loaded usbmount configurations
  Oct 15 19:39:33 eeebox usbmount[814]: trying to acquire lock /var/run/usbmount/.mount.lock
  Oct 15 19:39:33 eeebox usbmount[814]: acquired lock /var/run/usbmount/.mount.lock
  Oct 15 19:39:33 eeebox usbmount[814]: /dev/sdb1 contains filesystem type 0x83
  Oct 15 19:39:33 eeebox usbmount[814]: usbmount execution finished

  Logs after applying the patch:

  Oct 16 12:28:33 eeebox usbmount[4309]: loaded usbmount configurations
  Oct 16 12:28:33 eeebox usbmount[4309]: trying to acquire lock /var/run/usbmount/.mount.lock
  Oct 16 12:28:33 eeebox usbmount[4309]: acquired lock /var/run/usbmount/.mount.lock
  Oct 16 12:28:33 eeebox usbmount[4309]: /dev/sdb1 contains filesystem type ext3
  Oct 16 12:28:33 eeebox usbmount[4309]: mountpoint /media/usb0 is available for /dev/sdb1
  Oct 16 12:28:33 eeebox usbmount[4309]: executing command: mount -text3 -onoexec,nodev,noatime,nodiratime /dev/sdb1 /media/usb0
  Oct 16 12:28:33 eeebox usbmount[4309]: executing command: run-parts /etc/usbmount/mount.d
  Oct 16 12:28:33 eeebox usbmount[4309]: usbmount execution finished

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