[rescue] Making Solaris 10 boot after the boot device has changed
Micah R Ledbetter
vlack-lists at vlack.com
Sat Dec 23 18:03:23 CST 2006
First, let me note that whenever I have problems, it always seems to
be you that gets me out of them. Thanks :). I appreciate your help a
On Dec 23, 2006, at 17:15, velociraptor wrote:
> On 12/23/06, Micah R Ledbetter <vlack-lists at vlack.com> wrote:
> <snipped boot woes>
> My tactic in this situation would be to give the system a full boot
> path from the OK prompt:
> boot -rs /path/to/c0t2d0s#
Thanks, I didn't know about boot -r
> You're not getting the right links in /dev/rdsk after the read-only
> boot because the system is still looking for the disks in the wrong
> Booting with the -r flag will cause the system to rebuild the device
> tree before it goes interactive in the boot process (this doesn't
> happen automagically--that's why devfsadm is there, as is the -r
> flag). Booting will probably still fall to maintenance mode after this
> b/c of the vfstab being borked, but at that point you should be able
> to mount them manually and fix them.
> Alternatively, you could boot off the CD, mount /etc/, change the
> vfstab, mount / and create the file /reconfigure, then @ the OK prompt
> change the nvalias which identifies the boot disk and reboot.
However, these don't work :(
I changed vfstab to c0t2d0s0, and changed the devalias to point to
the right disk (now I can just issue `boot` at the ok prompt and it
boots from hard disk). However I still can't fsck or mount c0t2d0s0
when I have booted from the hard disk.
That's the weird part - the devices seem to be different, depending
on whether I boot from install media or hard disk. Creating /
reconfigure did not change this. In fact, I just tried `format`, and
it simply tells me that there are no hard disks found (when booting
from hard disk; booting from install media finds my one hard drive,
as it should).
Also, I should have mentioned this before, but I only have two
partitions - / and swap (and /home is elsewhere on the network). Both
are on the same ATA disk.
Since I have but one working IDE controller, the hard disk is the
master, and the DVD drive is the slave.
> (See <http://www.princeton.edu/~unix/Solaris/troubleshoot/
> for details on the Solaris boot sequence.)
More information about the rescue