Slax – distro built on Slackware or Debian
Quoting: Slax - distro built on Slackware or Debian - LinuxLinks —
It has the ability to run directly from a USB flash drive without the need for installation. Despite its small size, it offers visually appealing graphical user interface and a carefully curated selection of basic pre-installed programs such as a file manager, text editor, terminal, and more. Slax provides FluxBox window manager already preconfigured for the most common tasks. Included is a Terminal emulator xterm, simple text editor scite and calculator galculator, as well as connection manager connman. You can put Slax on wide range of different filesystems, including EXT (ext2,ext3,ext4), btrfs, and even FAT and NTFS.
When Slax is started from a read-only media such as CD/DVD, it keeps all system modifications in memory only, and all the modifications are lost when you reboot.If you run Slax from a writable device such as USB Flash Drive, it can store all changes there, so all your configurations and modifications are restored next time you boot, even if it is on a different computer. This feature is known as Persistent Changes.