Emergency UNIX and Linux Support

Can you boot from your install disk?

---------- Post updated at 16:05 ---------- Previous update was at 16:00 ----------

I assume you can either boot from a CD or from another system. Then why not do that and then try mounting the offending filesystem with zfs mount ?

@Neo

Code:

What do you mean by boot from your install disk?

if you mean HDD , the answer is no i can't boot off HDD .
if you mean dvd , the answer is yes i can boot off dvd in single user shell.

i have no solaris x86 servers live right now , only SPARC , but i can install fresh system on alternate disk and attach the dead disk to that system , so what do i need to do zfs mount from either booting off dvd or from within another solaris 10 x86 machine .
what exact steps do i need to do a sucessful zfs mount , deatiled steps if you please

I think you should not get ahead of yourself.

First, you should mount the offending filesystem from a working system and confirm that the filesystem is mountable (working).

Then post back ....

i have no clue how to do this exactly
if you mean to attach the courrpted disk to live system
and issue command like this without creating new pool

Code:

#zfs mount somepool
#zfs unmount somepool

the only way i konw is to create a new pool from scratch
with a command like this

Code:

#zpool create somepool  c0d0

then how can this be done more explainition required please

Do you have another spare disk like that one available, with the same reference (manufacturer, size) ?
That doesn't make sense. Pluging/unpluging a disk cannot cause a mbr to be rewritten anywhere. What else did you or someone else do on that Solaris disk ? Was there another disk plugged in where the second disk was inserted ?
What says

Code:

iostat -En

and

Code:

fdisk -G /dev/rdsk/c0d0p0

Yes i have some disk like but not the exact firmware version , but i'll do my best to get with same exact paramteres

That's exactly what happened to me Pluging/unpluging the disk
No one else or myself do something to that Solaris disk
Was there another disk plugged in where the second disk was inserted ? the answer is no

The "Bad PBR Sig" error, meant that Solaris tried to skip the first disk and go to second disk. Was the second disk actually really brand new and unpartitioned?