MultiBoot with Multiple Persistent partitions

Solution 1:

The maximum work space for persistence is 8 GiB (not 4 GiB). The casper-rw file is maximum 4 GiB and the home-rw file is also maximum 4 GB. But there are restrictions, max 4 GiB for the system (installed programs) and max 4 GiB for tweaks and personal files.

It is possible to have an extra data partition for huge files like video clips, so maybe these 8 GiB will be enough for many users, who want multibooting with persistence for more than one of the systems.

This works with a FAT32 file system and with adding

persistent-path=/(folderx)/

after "persistent" in the grub2 menuentry for each iso file to get separate storage for persistence in a multiboot pendrive.

Solution 2:

NTFS file system i believe lets you have a lot more than 4GB which i think is the limit for FAT32 file systems.

You should be able to drag and drop your iso image into your drive after that. remember NTFS file system when formating your USB.

Hopes it helps a bit just trying to get Ubuntu points to be honest.

Solution 3:

Update 08/2017:

Syslinux started adding support for NTFS with version 4.06 but did not offer full support until version 6.03.

UNetbootin - 655 uses Syslinux 4.03 and is limited to 4GB persistence files per FAT32.

MultiBootUSB - 8.8 uses Syslinux 4.07 and will install on NTFS, persistence files are not limited to 4GB. The Linux version will install the bootloader on ext file systems.

Rufus 2.16 uses Syslinux 6.03 and will install on NTFS, persistence files are not provided but can be added manually and are not limited to 4GB.

YUMI - 2.0.4.9, (MultiBoot USB), uses Syslinux 6.03 and will install on NTFS, persistence files are not limited to 4GB. Like MBUSB 8.8 it can have large persistence files for each distro installed.