Thanks for the crash file and sorry for the slow response. From the crash file:
Volume group "ubuntu-vg" has insufficient free space (6271 extents): 6272 required. We are only off by one! I think the lesson here is that we need to be more careful about LV sizes, this code is basically assuming one can take the size of the VG, divide it by two and create two LVs of that size but that's not really true, you can only create LVs whose size is a multiple of the extent size, which is by default 4MiB (and subiquity does not allow controlling this). ** Changed in: subiquity (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1935969 Title: Ubuntu 20.04.2 LTS installer crash when letting the system determine size of additional LV To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/subiquity/+bug/1935969/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs