This applies to CD-Rs as well as CD-RWs and DVDs. This feature enables the user to either save the contents to a writable storage medium, or write the file system to the same CD containing Puppy, if 'multisession' was used to create the booted CD and if the disc drive supports burning. Since Puppy Linux fundamentally runs in RAM, any files and configurations made or changed in a session would disappear otherwise.

Puppy Linux offers a session save on shutdown. This ensures that a bug or even unknowingly incompatible software won't corrupt the contents of such devices. Puppy's bootloader does not mount hard drives or connect to the network automatically. While other distributions offer live CD versions of their operating systems, none offer a similar feature. Puppy Linux includes the ability to use a normal persistent updating environment on a write-once multisession CD/DVD that does not require a rewritable disc this is a unique feature that sets it apart from other Linux distributions. It also uses a sophisticated write-caching system with the purpose of extending the life of live USB flash drives. Puppy Linux features built-in tools which can be used to create bootable USB drives, create new Puppy CDs, or remaster a new live CD with different packages. It has also been ported to ARM and can run on a single board computer such as the Raspberry Pi. It can function as a live USB for flash devices or other USB mediums, a CD, an internal hard disk drive, an SD card, a Zip drive or LS-120/240 SuperDisk, through PXE, and through a floppy boot disk that chainloads the data from other storage media. Puppy's compact size allows it to boot from any media that the computer can support. It can be used as a rescue disk, a demonstration system that leaves the previous installation unaltered, as an accommodation for a system with a blank or missing hard drive, or for using modern software on legacy computers. Puppy Linux is a complete operating system bundled with a collection of applications suited to general use tasks.

Install deb packages in puppy linux