Date: Mon, 28 Sep 1998 02:33:22 -0700 From: Don Lewis <Don.Lewis@tsc.tdk.com> To: Anton Voronin <anton@urc.ac.ru>, Allen Smith <easmith@beatrice.rutgers.edu>, freebsd-security@FreeBSD.ORG Subject: Re: Booting from NT ? Message-ID: <199809280933.CAA03313@salsa.gv.tsc.tdk.com> In-Reply-To: Anton Voronin <anton@urc.ac.ru> "Re: Booting from NT ?" (Sep 28, 2:36pm)
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On Sep 28, 2:36pm, Anton Voronin wrote: } Subject: Re: Booting from NT ? } Allen Smith wrote: } } > Question... what does happen if one has a R/O root filesystem, } > including /dev, without DEVFS? I'm constructing a firewall computer } > with a (switchable - a nice facility of some Seagate drives) hard } > drive for root, a second writeable drive for /var and swap, and a /tmp } > MFS. What problems am I likely to run into with /dev? I'd really } > prefer not to have it as a symlink to /var/dev or some such... } It needs to write /dev/console but it does this before mounting according to } fstab. If you protect your hard drive it probably won't work. Try to just } mount it with -ro option. That should not be a problem. You should be able to write to /dev/console or /dev/null even with a physically write-protected disk, because writes to these devices don't require changing any of the bits on the disk. Just be sure to mount the filesystem read-only as well, otherwise the kernel will get upset when it tries to update the mtime on these devices and can't because the disk is write-protected. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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