It seems to me that grub-reboot does what you asked for. You do have to modify /etc/default/grub *one time* to set the "saved" option, but after that you just quickly run grub-reboot before a reboot and it boots the one you picked, on just the next reboot. If on that boot, you DON'T run grub-reboot, it will reboot the time after that with your default, safe boot option. If you're worried about testing odd kernels and panics, you can also set a boot option like "panic=30" so it reboots into a safe kernel after a panic.
If that isn't what you wanted, can you clarify in more detail what you're looking for? You could set up a serial console connected to a separate computer let you connect to it at boot time, but it is much more complicated and expensive. I guess if you need to boot into OS's that don't use grub, a serial console boot would be more convenient than rebooting to the default one that does do grub, and then choosing the one you really want next via grub-reboot from there. Neal McBurnett http://neal.mcburnett.org/ On Sat, Feb 11, 2012 at 05:54:30PM +0530, Tapas Mishra wrote: > No this is not what I want.I am aware of these options. > > > On Sat, Feb 11, 2012 at 3:39 PM, Pandu Poluan <[email protected]> wrote: > > > Go here: > > https://help.ubuntu.com/community/Grub2 > > find grub-set-default and grub-reboot. These commands will be available if > you set grub.cfg according to the procedure in the section. > > Rgds, > > On Feb 11, 2012 3:39 PM, "Tapas Mishra" <[email protected]> wrote: > > I forgot to mention in previous message I do not want to be manually > editing the grub.cfg file each time if I have to frequently switch > between different OS. > > On Sat, Feb 11, 2012 at 2:04 PM, Tapas Mishra <[email protected]> > wrote: > > I have a machine which is multiple boot.For sysadmin kind of work > I > have to boot into different different Operating System's. Main Os > is Ubuntu 11.10 with grub2. > > Each time if I reboot then I want to be able to select desired > operating system to boot while remotely logged in via ssh as we do > when we are physically present on that machine by moving the up > down arrow keys.I want to do some thing similar via ssh or if > possible by some other protocol. > Is it possible some how.Is there any package available for the > same? > > -- > > > > > -- > ubuntu-server mailing list > [email protected] > https://lists.ubuntu.com/mailman/listinfo/ubuntu-server > More info: https://wiki.ubuntu.com/ServerTeam -- ubuntu-server mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
