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CONFIG_CRAMFS: Compressed ROM file system support (cramfs)

General informations

The Linux kernel configuration item CONFIG_CRAMFS has multiple definitions:

Compressed ROM file system support (cramfs) (OBSOLETE) found in fs/cramfs/Kconfig

The configuration item CONFIG_CRAMFS:

Help text

Saying Y here includes support for CramFs (Compressed ROM File System). CramFs is designed to be a simple, small, and compressed file system for ROM based embedded systems. CramFs is read-only, limited to 256MB file systems (with 16MB files), and doesn't support 16/32 bits uid/gid, hard links and timestamps.

See Documentation/filesystems/cramfs.txt and fs/cramfs/README for further information.

To compile this as a module, choose M here: the module will be called cramfs. Note that the root file system (the one containing the directory /) cannot be compiled as a module.

This filesystem is obsoleted by SquashFS, which is much better in terms of performance and features.

If unsure, say N.

Compressed ROM file system support (cramfs) found in fs/Kconfig

The configuration item CONFIG_CRAMFS:

Help text

Saying Y here includes support for CramFs (Compressed ROM File System). CramFs is designed to be a simple, small, and compressed file system for ROM based embedded systems. CramFs is read-only, limited to 256MB file systems (with 16MB files), and doesn't support 16/32 bits uid/gid, hard links and timestamps.

See Documentation/filesystems/cramfs.txt and fs/cramfs/README for further information.

To compile this as a module, choose M here: the module will be called cramfs. Note that the root file system (the one containing the directory /) cannot be compiled as a module.

If unsure, say N.

Compressed ROM file system support (cramfs) found in fs/cramfs/Kconfig

The configuration item CONFIG_CRAMFS:

Help text

Saying Y here includes support for CramFs (Compressed ROM File System). CramFs is designed to be a simple, small, and compressed file system for ROM based embedded systems. CramFs is read-only, limited to 256MB file systems (with 16MB files), and doesn't support 16/32 bits uid/gid, hard links and timestamps.

See Documentation/filesystems/cramfs.txt and fs/cramfs/README for further information.

To compile this as a module, choose M here: the module will be called cramfs. Note that the root file system (the one containing the directory /) cannot be compiled as a module.

This filesystem is limited in capabilities and performance on purpose to remain small and low on RAM usage. It is most suitable for small embedded systems. If you have ample RAM to spare, you may consider a more capable compressed filesystem such as SquashFS which is much better in terms of performance and features.

If unsure, say N.

Compressed ROM file system support found in fs/Kconfig

The configuration item CONFIG_CRAMFS:

Help text

Saying Y here includes support for CramFs (Compressed ROM File System). CramFs is designed to be a simple, small, and compressed file system for ROM based embedded systems. CramFs is read-only, limited to 256MB file systems (with 16MB files), and doesn't support 16/32 bits uid/gid, hard links and timestamps.

See Documentation/filesystems/cramfs.txt and fs/cramfs/README for further information.

To compile this as a module, choose M here: the module will be called cramfs. Note that the root file system (the one containing the directory /) cannot be compiled as a module.

If unsure, say N.

Hardware

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