I managed to reproduce this, although I don't think I was being offered the autoresize option but rather it was trying to install "alongside" the "install" that was on the install media. (certainly, sdb was the install media for me, and I got the same message)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861912 Title: file system creation in partition failed in auto-resize install 18.04.4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1861912/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
