usb-creator fails to pick .iso extension files, but picks them if renamed to .img extension

[sundeep]

When browsed to pick .iso extension file images, the usb-creator doesn't pick them, but the same works if the same .iso files were renamed to end with ".img" extension.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[sudodus (nio-wiklund)]

There is a check for an Ubuntu signature in order to accept iso files, but no corresponding check to accept img files.

@ Canonical, It should be easy to fix, if you want to do it.

[Nicholas Xenakis (xnicholas)]

https://releases.ubuntu.com/focal/ubuntu-20.04.6-desktop-amd64.iso

Can you confirm "ubuntu-20.04.6-desktop-amd64.iso" is visible to usb-creator menu automatically?

[sudodus (nio-wiklund)]

I can confirm that. See the attached screenshot (made in Ubuntu 22.04.2 LTS). The text is in Swedish, but I can assure that it is from usb-creator-gtk.