Published at LXer:

A few days ago I received the latest issue of Linux Journal Magazine. I must admit that one of the sections I look forward to reading is diff -u. This section summarizes the latest updates and discussions of the Linux kernel development community. It becomes much easier to read a summary as opposed to signing up for the mailing list because you will just get bombarded with e-mails which can be overwhelming the majority of the time. While reading I came across a Montavista developed project called pramfs. In summary pramfs is a non-volatile RAM based file system, similar to your ramfs and tmpfs with a few differences to distinguish it from the others and in turn adapted for an embedded environment. Two obvious differences are that it is persistent like a traditional disk-based file system and does not reside in volatile DRAM. Pramfs is not new. It was originally announced back in 2004. It is designed to be a simplified file system that does not carry the same weight of the journal-based file systems.

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