Messages in this thread | | | Date | Tue, 21 Dec 2004 10:15:41 -0800 (PST) | From | Brad Fitzpatrick <> | Subject | Re: Make changes to read-only file system using RAM |
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Chris,
Check out unionfs.
On Tue, 21 Dec 2004, Chris Swanson wrote:
> 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/ > > - 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/
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