I tested this on an virtual machine running Eoan and did not notice vgcfgbackup taking as much time as it doesn in an schroot.
bdmurray@clean-eoan-amd64:~$ sudo time vgcfgbackup 0.00user 0.00system 0:00.02elapsed 37%CPU (0avgtext+0avgdata 10848maxresident)k 3584inputs+0outputs (0major+1411minor)pagefaults 0swaps -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1833758 Title: lvm2: vgcfgbackup in postinst takes several minutes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1833758/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs