** Description changed: I guess this is actually a bug in some partman component, but well. In both the desktop and ubuntu studio installers for eoan beta, I was offered the installation media as a target disk. This seems unlikely to be correct. + + == + + partman-auto must not use the _whole_ device, of anything that is + mounted on /cdrom. + + Our ISOs are multipartition eltorito devices. And one can mount the top- + level device, or the first partition, to get the same content (depending + if one knows how to read partitions that is). Previously we were + mounting the top-level /dev/sda, but now we started to mount /dev/sda1, + unbreaking using other partitions of the installer media for purposes of + persistence & installer logs. + + Partman & parted are actually very confused by our installer media, as + they get tricked by -isohybrid-apm-hfsplus into thinking it is MAC based + partition table, when in fact it's just MS-DOS or GPT depending how one + looks at it. At least blkid/udevadm correctly declare it el-torito + hybrid image. + + Thus when parted init code tries to walk the partitions, and detect + installer media mounts none of that code actually runs, as no partitions + are detected partman (and parted_devices declares it unknown partition + table). + + Hence I guess, the static strict check for the "whole $device mount on + /cdrom" was added. + + But given the above change to mount just a partition this has now + started to fail. Imho we should expand the pattern to match at least + optionally match 'p?[0-9]*' - depending on how one re-rolls the iso, it + may or may not be multipartition one, with optionally 'p'-prefixed + (hello nvme) partition number, such that all of these cases are valid.
** Attachment added: "test.sh" https://bugs.launchpad.net/ubuntu/+source/partman-auto/+bug/1845571/+attachment/5296101/+files/test.sh -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1845571 Title: ubiquity offers installation media as an install target To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-auto/+bug/1845571/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
