xen discuss - Nov 2009 - Install OSOL 1002 124, 126, 127 on /dev/sdb1 (Linux box) and MBR status

124,126 nicely placed Solaris Grub stage 2 in /dev/sdb1 kept MBR untouched
127 place Solaris Grub stage 1 into MBR , so i had to run "linux
rescue"
and "grub-install /dev/sda".
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This message posted from opensolaris.org

Not exactly. MBR stays safe. After  initial reboot ( after install) regular
kernel trademard shows up . Looks like MBR has been rewriten. But  pressing
"RESET" button at this point loads original grub menu (Linux) with old
entry for OSOL , which is obviously still good:-
 title OSOL 1002 (previews)
 rootnoverify (hd1,0)
 chainloader +1
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This message posted from opensolaris.org

Boris Derzhavets wrote:
> Not exactly. MBR stays safe. After  initial reboot ( after install) regular
> kernel trademard shows up . Looks like MBR has been rewriten. But  pressing
> "RESET" button at this point loads original grub menu (Linux)
with old
> entry for OSOL , which is obviously still good:-
>  title OSOL 1002 (previews)
>  rootnoverify (hd1,0)
>  chainloader +1

Sounds like you were fast rebooting (loads the kernel and
jumps back into the kernel without reseting the machine).

You can do a reboot -p to reboot with reset.




MRJ