Date: Wed, 26 May 1999 15:46:34 -0600 From: Colin Eric Johnson <colinj@cs.unm.edu> To: freebsd-questions@FreeBSD.ORG Subject: Re: CD Images and Bootable CDs Message-ID: <Pine.SGI.4.05.9905261508430.11197-100000@waimea.cs.unm.edu> In-Reply-To: <199905140358.XAA14331@cc942873-a.ewndsr1.nj.home.com>
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On Thu, 13 May 1999, Crist J. Clark wrote: > Colin Eric Johnson wrote, <stuff deleted> > > Question number two. > > > > I'd like to be able to make a CD image of the root partition on a FreeBSD > > box such that it is a bootable CD so that if the disk were damaged, > > corrupted or comprimised I could boot the machine with known safe media. > > I've been looking at the tools like mkhybrid and mkisofs > > mkisofs should be fine. No need for Joliet extensions for a FreeBSD > system disk. > > > to produce CD > > images from directories, what I am not sure about is what to use for the > > bootable image. What I would like is something with a bit more space then > > a boot floppy. I'm thinking that with a bootable CD with a root file > > system on it I could have enough tools to bring a machine on line. > > > > thoughts? > > You can easily fit the root partition and the basic usr on a > CD. Using one for a fixit or boot disk seems perfectly > reasonable... to a point. You will not have a writable /tmp, but that > is not a show stopper. However, I'm not at all sure how mounting other > filesystems would work on a read-only directory on a CD. If you could > not mount other filesystems, it would be pretty much useless. You > could boot fine and run commands, but never be able to actually fix > anything. The mounting doesn't seem to be a problem, I can make that work. What I'm interested in is a guide to make a boot image to place on the CD that uses the kernel that I build for the machine and not the generic kernel. Colin E. Johnson | colinj@unm.edu | http://www.unm.edu/~colinj/ A complete breakfast with juice, toast and milk To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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