Hack of the day: remote-reboot

Saturday, September 29. 2007

I had to clone a server to another server (1:1 copy using dd+netcat) but didn't want to stay at the customer's place until the task finished. So I executed 'Start ssh; passwd' to be able to login remotely. But how to reboot the server and get rid of the CD so the harddisk system boots instead of the grml-CD without manual interaction at customer's place? Server systems usually don't move in/re-insert an ejected CD on reboot - that's nice for what we need. So all I had to do was:

eject &>/dev/null
umount -l /cdrom
eject /dev/cdrom
echo b > /proc/sysrq-trigger
Posted by mika in general at 11:54 | Comment (1) | Trackbacks (0)

grml-live - autobuild infrastructure

Saturday, September 29. 2007

Thanks to the infrastructure provided by IBM's x305 server donation and Jimmy's work I just finished a first prototype setup of an autobuild system for building grml-ISOs using grml-live. Currently I've a working system for building "grml-medium" ISOs based on etch/stable and sid/unstable on a daily base. Normal/full grml ISOs (the ~700MB version) of etch/stable and sid/unstable will follow soon. I plan to provide new develreleases as soon as I finished the autobuild setup. Hopefully we'll find ressources for a 64bit environment (so we can provide autobuilded ISOs of grml64) as well.

Posted by mika in general at 01:01 | Comments (0) | Trackbacks (0)
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