On Mon, Dec 08, 2008 at 01:03:52AM +0200, Micha Feigin wrote: > I'm trying to do some kernel development remotely which requires reboots and > the occasional kernel panic on start which is very annoying since then I need > to > wait a few days until I get to the computer or someone knowledged enough is > around it to restart it into a working configuration. > > Is there some way to control grub, see the startup text and reboot remotely in > case of kernel panic such as through a serial cable (although I need to check > if that motherboard actually has a serial port as these are hard to come by > these days).
Yes, grub can use a serial console. See the grub manual for how to set it up. There's also the savedefault feature of grub so that if a kernel choice doesn't start it will start a default kernel that does boot next time (not sure on this since I've never needed this aspect). There's also the panic= kernel command line so that after a panic, the machine will reboot after a delay rather than just sit there waiting for a power cycle. I don't know about grub, but the kernel can use usb dongles as serial ports/console. Doug. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
