From: Michael Richardson <mcr@sandelman.ottawa.on.ca>
To: Bob Wirka <bobwirka@rtcworks.com>
Cc: netdev@oss.sgi.com, linux-net@vger.kernel.org
Subject: Re: NFS and Network Driver Question
Date: Tue, 19 Oct 2004 20:54:01 -0400 [thread overview]
Message-ID: <7126.1098233641@marajade.sandelman.ottawa.on.ca> (raw)
In-Reply-To: Message from Bob Wirka <bobwirka@rtcworks.com> of "Tue, 19 Oct 2004 19:19:10 CDT." <4175AEFE.7090002@rtcworks.com>
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>>>>> "Bob" == Bob Wirka <bobwirka@rtcworks.com> writes:
Bob> Ok, now I feel like I'm taking crazy pills...
Bob> The embedded system boots up and mounts the root file system on
Bob> my host laptop. The 'rc.sysinit' startup script executes the
Bob> command 'mount -a' which should mount /proc, /dev/pts, and
Bob> /dev/shm, as listed in /etc/fstab. When executed, that command
Bob> returns "mount: only root can do that".
Bob> When I get to the bash prompt, 'whoami' reports that I am,
Bob> indeed, root. A 'mount -a' from the command prompt gives the
Bob> same result; it doesn't think I'm root for the mount command.
The mount command is perhaps setuid root, but you aren't mounting the
root file system in a way that permits it to be identified as such.
Or, the file is in fact not owned by root, and is in fact setuid not-root.
- --
] "Elmo went to the wrong fundraiser" - The Simpson | firewalls [
] Michael Richardson, Xelerance Corporation, Ottawa, ON |net architect[
] mcr@xelerance.com http://www.sandelman.ottawa.on.ca/mcr/ |device driver[
] panic("Just another Debian GNU/Linux using, kernel hacking, security guy"); [
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next prev parent reply other threads:[~2004-10-20 0:54 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-15 21:31 NFS and Network Driver Question Bob Wirka
2004-10-19 18:03 ` Bob Wirka
2004-10-20 0:19 ` Bob Wirka
2004-10-20 0:54 ` Michael Richardson [this message]
2004-10-20 15:47 ` Bob Wirka
2004-10-20 15:58 ` Stephen Hemminger
2004-10-20 16:03 ` Bob Wirka
2004-10-21 15:09 ` Bob Wirka
2004-10-21 15:50 ` Bob Wirka
2004-10-21 16:17 ` Henrik Nordstrom
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