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
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 1411minor) pagefaults 0swaps
0.00user 0.00system 0:00.02elapsed 37%CPU (0avgtext+0avgdata 10848maxresident)k
3584inputs+0outputs (0major+