

ext3 formatting performance is rather slow (compared to doing it from Linux) even though I made sure to use the exact same formatting library as the one that's used on Linux ( lib/ext2fs from e2fsprogs's) and left the sources pretty much unmodified.So, I'd rather have Ubuntu fix this very disappointing issue before I start to look into adding persistence to conf files, and end up with a bunch of Ubuntu users complaining that their media cannot complete boot. First of all, that's because it's a bit tricky to do (for instance Ubuntu has multiple kernel entries, and we're only want to do it for the 'Live' one) and second, it's because currently Ubuntu has a MAJOR BUG that will result in init failing with the messages (initramfs) mount: mounting /cow on /root failed: Invalid argument/ overlay mount failed (yes, we tried moving the casper-rw partition before the main partition, and, no, I'm not going to add a 3rd EFI partition when creating Ubuntu drives just to work around a BUG that should have been fixed years ago!).


I am not currently planning to edit config files (Syslinux, GRUB), to add persistence to the kernel parameters.
#Universal usb installer not making persistent file iso
As a matter of fact, when persistence has been selected, you will not be prompted to choose between ISO and DD, as Rufus will consider that, if you enabled persistence, then it means you want to use ISO mode.
