On Mon, Jun 9, 2014 at 12:45 PM, <m.roth at 5-cent.us> wrote: > James B. Byrne wrote: > > On Mon, June 9, 2014 11:46, Steve Clark wrote: > <snip> > > implementation as it necessarily involves a restart of the test system. > I > > am trying to discover if there is some way of restarting a headless > server > > and use a specific grub entry instead of the default. I want to leave > the > > default unchanged until I can prove that any manual changes I make do not > > negatively impact a system restart. > > > > If anyone knows if this is possible and if so, how it is done, I would > > welcome the information. > If you happen to be fortunate enough and have (ipmi v2) Serial over LAN configured, you can reboot and change the boot selection. > > That's a no-brainer: change the default= line in grub from 0 to whatever > Not really. James wrote that he does not want to "negatively impact a system restart". If I was in his shoes, I wouldn't change the grub default boot item without serial-over-lan access, a KVM switch with network access, or "remote hands" on site. Otherwise you just changed your default boot item and it could cyclically crash and (possibly) reboot. > the entry number is. Note that I'm not sure what happens if you add a > kernel update in there, whether the post-install scripts will increment > the number so as to continue to point to the correct kernel. > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -- ---~~.~~--- Mike // SilverTip257 //