On Wed, May 09, 2001 at 07:01:52PM -0700, Timothy Bolz wrote:
> I have a question about Demo Linux and possible could be used for other
> distros. If Demo Linux is runs from CD, it almost makes it hack proof is what
> I'm thinking. Sure everthing that is memory and mounted file systems would be
> hackable. But Let's say you have a cron job run a diagnostics on memory and
> file stucture. Since Demo Linux is run from a CD I believe it would be
> read-only. So If I got a Distro to where I like it I could burn it on a CD and
> it would read-only.
You don't need to burn a CD to have a nonwritable filesystem. You
can mount most filesystems read only, and some disks and BIOSes can
block writing.
To switch from writable to read only in linux:
# mount -r -o remount /mount/point
to go back:
# mount -w -o remount /mount/point
rw to ro in OpenBSD:
# mount -r -u /mount/point
and back:
# mount -w -u /mount/point
Just make sure you don't make /var and /tmp read only :)
<[EMAIL PROTECTED]>
