Data: Current Tumbleweed kernels need about 40M each, in /boot. If purge-kernels.service is disabled for whatever reason or you do manual installations, they can creep up sometimes. [I chose a 256MiB /boot ext2 partition (df reports 238M) volume, and it gives me capacity for (just) 5 kernels. ESP is separate at 100M.] 12:32 f3:../efi/EFI # du -s * 1524 Boot 25554 Microsoft 3193 opensuse So that's whatever MS typically contributes in file size.