I use SuSE which mounts root as read-only on boot.
Benjamin Scott wrote:
> On Mon, 13 Nov 2000, Jerry Feldman wrote:
> > boot into single user mode. Most linux systems:
> > LILO: linux S
> > Once in single user mode, you may need to enter your root password.
> > Your root file system is mounted read/only.
>
> NOTE WELL: Red Hat and most of its derivatives mount all available
> filesystems WRITE ENABLED during a single user boot. Running fsck on a
> mounted, writable filesystem can cause SEVERE FILESYSTEM CORRUPTION and LOST
> DATA.
>
> Here are the details:
>
> The boot script, /etc/rc.d/rc.sysinit, will do an fsck on any filesystems i
> t
> thinks need it. If anything nasty is found ("UNEXPECTED INCONSISTENCY; RUN
> fsck MANUALLY"), it will drop you to a root shell with the filesystems still
> mounted read-only (if at all). At that point, you can safely run fsck until
> it says everything is peachy, at which point you exit the shell, and the
> system reboots.
>
> HOWEVER, if the built-in fsck completes successfully, and moves on, it will
> mount the filesystems read/write before dropping you to the single user mode
> shell prompt. Running fsck at this time could DESTROY the filesystem.
>
> If you want to force the system to boot with a read-only filesystem,
> override the initial program with something like:
>
> LILO: linux init=/bin/sh
>
> That will cause the kernel to load bash as the one and only process on the
> system. You can then mount the /proc filesystem with:
>
> mount -t proc /proc /proc
>
> Then inspect the contents of /proc/mounts to verify root (/) is mounted
> read-only. Then run fsck or whatever. Then sync. Then issue:
>
> exec /sbin/init
>
> That will replace the current shell with init, and the system should start
> normally.
>
> --
> Ben Scott <[EMAIL PROTECTED]>
> Net Technologies, Inc. <http://www.ntisys.com>
> Voice: (800)905-3049 x18 Fax: (978)499-7839
>
>
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--
--
Gerald Feldman <[EMAIL PROTECTED]>
Boston Computer Solutions and Consulting
ICQ#156300
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