Customizing Knoppix on a LiveUSB formatted with non-vfat Filesystems

[utu]

I haven't looked into the minirt for a while - maybe btrfs is there already?
Otherwise, it's "just" to get the right kernel module, add it in and modify init.

I note that cat /prod/filesystems says the 32-bit 7.2 kernel recognizes btrfs,
and that 7.2's Synaptic lists btrfs tools & snapper.

I expect btrfs might work ok just re-formatting the reiserfs persistence file,
after saving its current contents into a cloop overlay, of course.

I wonder if unionfs has to be converted to btrfs or not.
As you say, likely need to delve into init and see where things get sticky.