Date: Wed, 2 Dec 1998 20:21:09 -0600 (CST) From: Rich Winkel <rich@chumbly.math.missouri.edu> To: freebsd-stable@FreeBSD.ORG Subject: accessing quiescent fbsd machine via network for maintenance Message-ID: <199812030221.UAA21832@chumbly.math.missouri.edu>
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I'm running FBSD 2.2.7-stable. For various reasons I'd like to be able to upgrade fbsd machines without having to be seated in front of them. Specifically, I want to reboot into a mode where only a minimal amount of system activity is occurring, regular users are excluded, but remote root access and nfs mounts are allowed. This would allow me to login, mount a remote /usr/src & /usr/obj, run "make installworld" and install a new kernel. But this seems to be problematic. I can do it at the console by rebooting singleuser and running fsck, swapon, ifconfig and mount, but I have problems when I try to do it with a modified /etc/rc. Specifically, in /etc/rc I check for the existence of the file /etc/netmaintboot immediately after the network_pass1 call. If the file exists I execute /etc/rc.netmaint and exit 0. /etc/rc.netmaint consists of: #!/bin/sh # boot configured for maintenance from network ldconfig /usr/lib echo "Down for maintenance, try again later" > /etc/nologin TERM=cons25 clear echo "Entering maintenance mode, please don't touch" /sbin/sshd -b 1024 & exit 0 But for some reason sshd dies immediately and I can't login. But if I then login at the console and run sshd manually it works fine. Any ideas?? Do you think this kind of capability should be incorporated into a future release? Thanks!! Rich To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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