[Bug 1246652] [NEW] Startup Disk Creator silently fails to select an image it cannot read

[Otus]

Public bug reported:

When trying to select a file for which I don't have read permissions,
Startup Disk Creator fails to select it, but gives no information on
why. Only by launching from the terminal do I see the reason:

isoinfo: Permission denied. Cannot open '<snip>'. Cannot open SCSI driver.
isoinfo: Permission denied. Unable to open <snip>

(This happened to me because virt-manager silently changes the owner and
permissions of any .iso files it uses. I had no idea about the problem
before I resorted to using the command line.)

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: usb-creator-gtk 0.2.50
ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
Uname: Linux 3.11.0-13-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
Date: Thu Oct 31 11:48:24 2013
InstallationDate: Installed on 2012-11-10 (354 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
SourcePackage: usb-creator
UpgradeStatus: Upgraded to saucy on 2013-10-18 (12 days ago)

** Affects: usb-creator (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug saucy

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https://bugs.launchpad.net/bugs/1246652

Title:
  Startup Disk Creator silently fails to select an image it cannot read

Status in “usb-creator” package in Ubuntu:
  New

Bug description:
  When trying to select a file for which I don't have read permissions,
  Startup Disk Creator fails to select it, but gives no information on
  why. Only by launching from the terminal do I see the reason:

  isoinfo: Permission denied. Cannot open '<snip>'. Cannot open SCSI driver.
  isoinfo: Permission denied. Unable to open <snip>

  (This happened to me because virt-manager silently changes the owner
  and permissions of any .iso files it uses. I had no idea about the
  problem before I resorted to using the command line.)

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: usb-creator-gtk 0.2.50
  ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
  Uname: Linux 3.11.0-13-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  Date: Thu Oct 31 11:48:24 2013
  InstallationDate: Installed on 2012-11-10 (354 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MarkForUpload: True
  SourcePackage: usb-creator
  UpgradeStatus: Upgraded to saucy on 2013-10-18 (12 days ago)

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