Hi, zypper dup of one 42.3 system to 15.0 on a VBox guest. After this question: 1904 packages to upgrade, 607 to downgrade, 762 new, 291 to remove, 8 to change vendor, 8 to change arch. Overall download size: 1.97 GiB. Already cached: 0 B. After the operation, additional 1.3 GiB will be used. Continue? [y/n/...? shows all options] (y): Do you agree with the terms of the license? [yes/no] (no): yes The system gets busy for minutes with snapper.py, and later with btrfs-defrag-pl, but there are no btrfs partitions at all: lsblk --output NAME,KNAME,RA,RM,RO,SIZE,TYPE,FSTYPE,LABEL, NAME KNAME RA RM RO SIZE TYPE FSTYPE LABEL sda sda 512 0 0 20G disk ├─sda1 sda1 512 0 0 7M part ├─sda2 sda2 512 0 0 4G part swap swap_1 ├─sda3 sda3 512 0 0 10G part ext4 Main └─sda4 sda4 512 0 0 6G part xfs Home sdb sdb 512 0 0 20G disk ├─sdb1 sdb1 512 0 0 4G part swap swap_2 ├─sdb2 sdb2 512 0 0 12G part ext4 Usr └─sdb3 sdb3 512 0 0 4G part crypto_LUKS └─cr_sdb3 dm-0 512 0 0 4G crypt xfs sdc sdc 512 0 0 20G disk └─sdc1 sdc1 512 0 0 4.9G part reiserfs Reiserfs I can understand testing for btrfs then exiting, but it takes minutes at 100% CPU. -- Cheers / Saludos, Carlos E. R. (from 42.3 x86_64 "Malachite" at Telcontar)