My solution to this same problem:
/dev/sdc or whatever your flash drive is using is owned by user:root group:disk
By default in Ubuntu your user is not part of the group "disk"
As best I can tell, you can't add yourself to the "disk" group with
System>Administration>Users and Groups. At least wit
I also have this problem, however to overcome it (although not a perfect
solution) is to open terminal and use the "sudo gnome-format" command,
this then works.
--
gnome-format: Error opening /dev/sdc:permission denied
https://bugs.launchpad.net/bugs/370277
You received this bug notification beca
** Attachment added: "Dependencies.txt"
http://launchpadlibrarian.net/26207807/Dependencies.txt
** Attachment added: "ProcMaps.txt"
http://launchpadlibrarian.net/26207808/ProcMaps.txt
** Attachment added: "ProcStatus.txt"
http://launchpadlibrarian.net/26207809/ProcStatus.txt
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gnome-
