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[Launchpad Bug Tracker <1082861@xxxxxxxxxxxxxxxxxx>]

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If you try to backup and usb pen drive with the (nice) preinstalled tool
"udisk" the program fails with this error:

"Error opening /dev/sdb: Device or resource busy (udisks-error-quark,
0)"

HOW TO REPRODUCE
1) insert an usb pen drive
2) start udisk
3) select "create image disk" (not really shure about the english text string)
4) you will be prompted for the user password, than the program will exit with the error written above.

HOW TO FIX
1) insert the usb pen drive
2) manual umount it (for me "sudo umount /dev/sdb1")
3) launch udisks (you can obviously umount the drive after launching udisks)
4) start the "create image disk" process
5) it will work.

For shure a small bug, but I really believe is that kind of bugs that negatively influence end-user's experience.
It shouldn't be too hard for some developer to add an "umount step" to the script that back up your drive.

have a nice day

Francesco (aka moro)

ps.
$ lsb_release -rd
Description:	Ubuntu 12.10
Release:	12.10

$ apt-cache policy udisks
udisks:
  Installato: 1.0.4-6
  Candidato:  1.0.4-6
  Tabella versione:
 *** 1.0.4-6 0
        500 http://it.archive.ubuntu.com/ubuntu/ quantal/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: udisks 1.0.4-6
ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
Uname: Linux 3.5.0-19-generic x86_64
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
Date: Sun Nov 25 10:55:04 2012
InstallationDate: Installed on 2012-11-01 (23 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: SAMSUNG ELECTRONICS CO., LTD. Q210/P210
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=3dc6ee43-3807-4684-91b3-8179053aa87a ro quiet splash vt.handoff=7
SourcePackage: udisks
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/02/2010
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 11LE.M009.20100402.KSY
dmi.board.name: Q210/P210
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr11LE.M009.20100402.KSY:bd04/02/2010:svnSAMSUNGELECTRONICSCO.,LTD.:pnQ210/P210:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnQ210/P210:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: Q210/P210
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Incomplete


** Tags: amd64 apport-bug quantal running-unity
-- 
udisks: Trying to backup an usb flash memory require manual unmounting
https://bugs.launchpad.net/bugs/1082861
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