Persistent

Original

Boot	File (vFat)	File (Other FS)	File Name	Partition	Partition Label	Directory
Casper (Ubuntu, ...)	✔	✘	✘	✔	✘	✘
Live-Boot (Debian, ...)	✔	✔	✔	✔	✔	✔
Archiso (Arch Linux, ...)	✘	✘	✘	✔	✔	✔
Dracut (Fedora, ...)

Menu Entry

Casper (Ubuntu, ..)

File: /bootableusb/persistent/casper-rw
Partition Label: casper-rw

Boot	Menu Entry
Initrd	initrd /casper/initrd.lz
Kernel	linux /casper/vmlinuz.efi boot=casper quiet splash ${opt}
Persistent (File)	set opt="persistent persistent-path=/bootableusb/persistent"
Persistent (Partition)	set opt="persistent"
Persistent (directory)	✘

Live-Boot (Debian, ..)

File: /bootableusb/persistent/bugra
Partition Label: test
Directory: /bootableusb/persistent/deneme

Boot	Menu Entry
Initrd	initrd /live/initrd.img
Kernel	linux /live/vmlinuz boot=live config ${opt}
Persistent (File)	set opt="persistence persistence-path=/bootableusb/persistent persistence-label=bugra"
Persistent (Partition)	set opt="persistence persistence-label=test"
Persistent (directory)	set opt="persistence persistence-label=deneme persistence-path=/bootableusb/persistent persistence-storage=directory"

Archiso (Arch Linux, ...)

Partition Label: test
Directory: /bootableusb/persistent/deneme

Boot	Menu Entry
Initrd	initrd /arch/boot/x86_64/archiso.img
Kernel	linux /arch/boot/x86_64/vmlinuz ${opt}
Persistent (File)	✘
Persistent (Partition)	set opt="cow_label=test"
Persistent (directory)	set opt="cow_directory=bootableusb/persistent/deneme cow_label=test"

Modified Initrd

Boot	File (vFat)	File (Other FS)	File Name	Partition	Partition Label	Directory
Casper (Ubuntu, ...)	✔	✔	✔	✔	✔	✔
Live-Boot (Debian, ...)	✔	✔	✔	✔	✔	✔
Archiso (Arch Linux, ...)	🔨	🔨	🔨	✔	✔	✔
Dracut (Fedora, ...)

Menu Entry

Casper (Ubuntu, ..)

File: /bootableusb/persistent/bugra
Partition Label: test
Directory: /bootableusb/persistent/deneme

Boot	Menu Entry
Initrd	initrd /casper/initrd.lz /bootableusb.lz
Kernel	linux /casper/vmlinuz.efi boot=casper quiet splash ${opt}
Persistent (File)	set opt="persistent persistent-path=/bootableusb/persistent persistent-name=bugra persistent-label=test"
Persistent (Partition)	set opt="persistent persistent-storage=filesystem persistent-label=test"
Persistent (directory)	set opt="persistent persistent-storage=filesystem persistent-label=test persistent-path=/bootableusb/persistent/deneme"

Live-Boot (Debian, ..)

File: /bootableusb/persistent/bugra
Partition Label: test
Directory: /bootableusb/persistent/deneme

Boot	Menu Entry
Initrd	initrd /live/initrd.img
Kernel	linux /live/vmlinuz boot=live config ${opt}
Persistent (File)	set opt="persistence persistence-path=/bootableusb/persistent persistence-label=bugra"
Persistent (Partition)	set opt="persistence persistence-label=test"
Persistent (directory)	set opt="persistence persistence-label=deneme persistence-path=/bootableusb/persistent persistence-storage=directory"

Archiso (Arch Linux, ...)

Partition Label: test
Directory: /bootableusb/persistent/deneme

Boot	Menu Entry
Initrd	initrd /arch/boot/x86_64/archiso.img /bootableusb.lz
Kernel	linux /arch/boot/x86_64/vmlinuz ${opt}
Persistent (File)	🔨
Persistent (Partition)	set opt="cow_label=test"
Persistent (directory)	set opt="cow_directory=bootableusb/persistent/deneme cow_label=test"

Source Code

• Casper 1.384

Documentation

• http://manpages.ubuntu.com/manpages/zesty/man7/casper.7.html
• https://manpages.debian.org/jessie/live-boot-doc/live-boot.7.en.html
• https://git.archlinux.org/archiso.git/plain/docs/README.bootparams
• http://man7.org/linux/man-pages/man7/dracut.cmdline.7.html

License

MIT License