Scanning for btrfs file systems
It's not "BTRFS scanning" hangs up system loading. After removing btrfs-tools, system still hanging here for few seconds. Sometimes new info appears: "Begin: Running /scripts/local-premount".
Solution:
- open
/etc/initramfs-tools/conf.d/resume - replace
RESUME=UUID=xxxwithRESUME=none - run
sudo update-initramfs -u - reboot your system
Related: https://askubuntu.com/a/1034952