Responding to the OP's original question (sorry, no longer have the message), Voyage Linux is a Debian derivation for use on flash storage which by default sets the root filesystem to read-only. A few exceptions such as /var are mounted under tempfs and so run in memory. The idea is to minimize writes to the flash storage.
The filesystem can be toggled back to read-write when needed. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]