Option to 'discard on shutdown' is greyed out.

[Alan Pope 🍺🐧🐱 🦄]

Hullo!

I have been making lots of USB sticks recently and noticed a reproducable error on Oneiric and Precise. For some reason the selection at the bottom of the screen for reserved disk space is greyed out sometimes. However it can be re-enabled by choosing a different ISO image.

I have made a little video to illustrate this.

http://www.youtube.com/watch?v=6UEAny3XFic

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: usb-creator-gtk 0.2.35
ProcVersionSignature: Ubuntu 3.2.0-5.11-generic 3.2.0-rc5
Uname: Linux 3.2.0-5-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.90-0ubuntu1
Architecture: amd64
Date: Mon Dec 19 10:52:48 2011
SourcePackage: usb-creator
UpgradeStatus: Upgraded to precise on 2011-12-01 (17 days ago)

[Alan Bell (alanbell)]

looks like this is because the remaining free space is less than MIN_PERSISTENCE, 1024MB
http://bazaar.launchpad.net/~usb-creator-hackers/usb-creator/trunk/view/head:/usbcreator/misc.py#L21

this seems rather a large minimum, and rather a poor user experience, in particular it doesn't let the user choose not to do a persistence file and doesn't move the radio button to indicate one won't be created.