[nycbug-talk] Reboot into single user mode remotely

Pete Wright pete at nomadlogic.org
Thu Feb 11 13:40:13 EST 2010

On Thu, Feb 11, 2010 at 06:18:46PM +0000, Mark Saad wrote:
> Hello talk,
>   I have a good question, how would you reboot a remote server into single usermode and make it run a script , and the bring it back up . The issue I have is I need to run tunefs on a few servers that I don't have console access on . I want to make it as hands off as I can , I don't want to ssh into 50 servers , if I don't have to . The filesystmes are / and /var so I can't unmount them on the running box and do what I need to . FreeBSD's tunefs will not let you turn softupdates and volume lables on on a filesystem that was previously mounted r/w . 
> That's it in a nut shell , I don't want to reinvent the wheel if I don't need to and I would like to do this all while I sleep ;) . 

first thought that comes to mind is writing a rc script that'll do this
for you on reboot.  i reckon if it's placed early enough in your boot
order it'll be able to enable softupdates.  maybe you could have a local
patch to /etc/rc.d/fsck?


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