Messages in this thread |  | | | Date | Tue, 21 Dec 2004 11:08:51 -0700 | | From | Chris Swanson <> | | Subject | Make changes to read-only file system using RAM |
| |
Hi,
Has anyone seen any work done on a RAM based file system that stores only changes to what would otherwise have been a read-only file system? For example, live Linux CD's rely on RAM file systems to store directories/files that must be modified, but the majority of the system is mounted read-only on the CD. I was thinking it would be really nice if we could mount a read-only medium (like a CD) in read-write mode, and store only modifications in RAM. This could give the illusion of a true read-write medium, and the RAM file system would just grow as more changes are made. I have searched around a bit and found nothing like this. Unfortunately, I have no kernel programming experience (although I'd love to learn). I was wondering if anyone has tried something similar in the past. Also, if anyone with more experience can see any reason why this is impossible or impractical, I would love to hear it, before I come to the same conclusion many months down the line.
Thanks for your time, Chris - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |