The following messages can be found in UbiquitySyslog.txt which was automatically attached to this bug report:
Feb 25 19:52:56 ubuntu kernel: [ 62.497787] SQUASHFS error: zlib decompression failed, data probably corrupt Feb 25 19:52:56 ubuntu kernel: [ 62.497793] SQUASHFS error: squashfs_read_data failed to read block 0x7278dbb0 It's possible you have a bad write to your media. If you're still having problems please try the option to check the integrity of the image from the installer boot menu, and if this confirms that the media is corrupt, try re-writing it. ** Changed in: ubiquity (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1864702 Title: installation of ubuntu 18.04.4 aborted, due to IO-error. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1864702/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs