That doesn't mean the volatile stuff isn't on a ramdisk. The Linux Router Project uses compressed packages on a floppy that it unpacks into a ramdisk root directory. A combination of that plus static directories on CD does the same thing. The "save" function just repacks the directory onto the floppy.
> -----Original Message----- > From: John Summerfield [mailto:[EMAIL PROTECTED] > Sent: Friday, February 21, 2003 1:54 PM > To: [EMAIL PROTECTED] > Subject: Re: [LINUX-390] R/O Linux guest? > > > > I've seen the "shared /etc" concept kicked around so much, > I'm sure there mus > > t be a way to do it, but there's at least one file (mtab), > that normally gets > > updated at boot time. The routers and > > firewalls I've seen usually load the root fs into a > ramdisk. Since they boot > > the same every time, it doesn't matter if changes are lost. > > Devil Linux and Guardian run from CD. They're too big to run > in RAM on anything > _I_ would use for a firewall. > > Both can save/restore configuration information on floppy, > and this controls > what's run. > > > > -- > Cheers > John Summerfield > > Microsoft's most solid OS: http://www.geocities.com/rcwoolley/ > > Note: mail delivered to me is deemed to be intended for me, > for my disposition. > > ============================== > If you don't like being told you're wrong, > be right! >