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[[HomePage]] > [[ComponentHowTo Components and HowTos]] > [[FileTypes]]

====""SaveFile"" or ""SaveFolder""====

~**""SaveFiles/ SaveFolder""** (also known as ""PupSave"" file/folder) are required for a [[InstallationFrugal Frugal Installation]] to save modifications to the operating system. The changes are either written written to RAM memory first then to file or folder, or written directly to file or folder. This method of running is sometimes referenced to as 'Live' in other distributions, where the option to make changes may or may not exist.
~The changes are anything modifying, adding-to or removing-from the linux file structure ([[RootFS]]). This typically includes settings, installing new applications etc. It also includes anything saved in the ~ user directory (usually root).

~If using the savefile option it is created on the first run when rebooting/shuting down. The user specifies the size, name, filesystem type and location of the file. The savefile's size can be increased if necessary.

~In 2014 a new method of storing changes to the ""RootFS"" was created. Instead of using a file of a fixed size a directory is used, thus it is a savefolder rather than savefile. This does away with having to resize the file or wasting disk space if less space is needed than predicted.

==Saving outside the Savefile/folder==
~To save documents outside of ""Savefile/folder"" go to ##/mnt/##. For example, ##/mnt/home## is the root directory/folder of your primary drive (C: drive in Windows speak).
~Saving documents outside of ""Savefile/folder"" makes them easy to access by other OSes and other Puppy iterations.

==Layered Filesystem==
~Puppylinux when frugally installed uses a layered file system, for more information see [[ How Puppy works]].

==Boot Up Behavior==
~Puppy's behavior on boot up depends whether any Savefiles/folders are found:
~~-If none are found Puppy will load the [[BaseSFS]] without any modifications. In many versions this will prompt the user to configure Puppy, also on reboot/shutdown the user is asked whether to create a save.
~~-If only one save is found it will load automatically. (If 'auto-load' is not wanted see [[HowToAvoidLoadingSaveFile how to avoid loading SaveFile]])
~~-If more than one is found the user is prompted to select via a text menu.
~Note: the boot files on a multi-session disk work differently from those used for live disk and frugal installs. They look for and make save files differently, see [[SaveFileMultiSession Save file multi-session]] for more information.

==Save to RAM==
~Changes written to RAM can be stored to the file or folder on request or periodically - otherwise they will be lost on shutdown or reboot.

==Temporary Directory and Temporary==
~This is the location where temporary files are stored. Do not put anything in here that needs to be kept. The [[savefile]] does not save the contents of this directory on reboot/ shutdown.
~Programs sometimes creating temporary files in a directory in ~ /root. This is inside the Savefile/folder. This may be a problem with limited room available, especially in the case of the fixed sized savefile. To avoid this, where applicable, configurate the temporary folder location outside ""Savefile"", ie. somewhere under /mnt. If the program does allow the location to set a [[symlink]] to the desired location can be used.

==Also on the Wiki==
~[[ResizeSaveFile How to Resize Savefile]]
~[[HowToAvoidLoadingSaveFile How to avoid loading SaveFile]]
~[[PupsaveBackup Pupsave Backup program]]
~[[PuppyState]] - information on the current ""SaveFile""
~[[Backup Backup Information]]
~[[SaveFileMultiSession Save File - multisession]] - save files used on mutli-session optical media
~[[BootParametersPuppy Puppy Boot Parameters]] - these allow you to configure where Puppy looks for Save Files
~[[Remastering]] - Remastering Puppy may avoid the need for a Savefile
~[[whiteout files|whiteout file (.wh)]] - used by layered filesystem to remove read-only file
~[[RootFS]] - Linux Directory Structure

==Related Webpages==
~[[ How to make Savefile without closing down]]
~[[ Remove automatic updating of Savefile]]
~[[ Shutdown without updating Savefile (alternative method)]]
~[[ A savefolder option for Puppy (thread)]]
~[[ savefile2dir - convert Savefile to Savefolder (post)]]
~[[ Savefolder without 'mount -o bind' (thread)]]

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