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The issue here is in "usbcreator/backends/base/backend.py" beginning at line 42 and the subsequent if block that follows (label = self._is_casper_cd(filename)) In the current situation, the label is returned as 'None' and the if block that follows is never executed. It would be desirable to catch this exception and return a message to the user indicating that the selected ISO does not appear to be a valid ubuntu image. ** Changed in: usb-creator (Ubuntu) Importance: Undecided => Low ** Changed in: usb-creator (Ubuntu) Status: New => Confirmed ** Changed in: usb-creator (Ubuntu) Assignee: (unassigned) => Roderick B. Greening (roderick-greening) ** Summary changed: - Official UNR (Ubuntu Netbook Remix) iso image is corrupted + usb-creator silently ignores invalid ido files without warning user. ** Summary changed: - usb-creator silently ignores invalid ido files without warning user. + usb-creator silently ignores invalid ISO files without warning the user. -- usb-creator silently ignores invalid ISO files without warning the user. https://bugs.launchpad.net/bugs/500526 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs