It appears that Persistent casper-rw files are not just working with GRUB booted ISO files in BIOS mode, they do not seem to be working with Syslinux boot drives either.
I have just tested BIOS boot of a Persistent UNetbootin USB drive and there is no persistence.
It appears that Persistent casper-rw files are not just working with GRUB booted ISO files in BIOS mode, they do not seem to be working with Syslinux boot drives either.
I have just tested BIOS boot of a Persistent UNetbootin USB drive and there is no persistence.