What I am looking for is some thing like a service console similar to IDRAC of Dell Power edge (if available for Ubuntu) or any software where in Wake On Lan with a special key combination can boot my desired OS.
On Sat, Feb 11, 2012 at 9:00 PM, Pandu Poluan <[email protected]> wrote: > Similar to Neal, I'm scratching my head as to exactly what @Tapas wanted... > > The only other possibility would be to install a hypervisor (XenServer > comes to mind) and access the VM's virtual console output using VNC or > whatever the management app the hypervisor uses (XenCenter in case of > XenServer). This will enable you to actually choose which OS to boot in the > grub menu. > > If that still doesn't answer your needs, then I give up :-P > > PS: grub is actually capable of booting non-grub-using OS like Windows; > you'll have to decipher the proper incantations for "chainloading" (plus > all the complexities of juggling partitions - Windows its wickedly invasive > and greedy in that regard), but it's doable. > > Rgds, > On Feb 11, 2012 9:21 PM, "Neal McBurnett" <[email protected]> wrote: > >> 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 >> > -- 8960770858
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