Sven Geggus writes:
> I do this by just mounting the root-filesystem read-only.

Just out of interest, how do you avoid the problem of files on the root
filesystem which need to be writable, such as /etc/mtab, /etc/HOSTNAME, and
/dev/tty*?

My current solution which involves copying this stuff to directory
under /var (which is on a read/write partition that gets mkfs'd at boot time)
and making /etc and /dev symlinks to the copies of the directories under /var,
but it's not real pretty.

Regards,
Graham

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