I cannot even see the Solaris partition when pressing F11, which means I cannot get access to GRUB2.

My plan is to boot from the Solaris install USB stick, mount the correct Solaris partition, and then regenerate GRUB2 entries using "bootadm generate-menu". Now I need to figure out the commands how to do all this....

I should be doing something like this, I guess:
-boot from USB
-mount old zpool as /a
-cd /a
-bootadm generate-menu <----- I hope this generates GRUB2 on /a
-reboot

Does this sound fine?


UPDATE: It seems I should use "bootadm install-bootloader" command instead of "bootadm generate-menu"? Hmmm......?
x86: Advanced GRUB Administration and Troubleshooting - Booting and Shutting Down Oracle Solaris 11.1 Systems

In the Ubuntu link above I gave, they use "grub-install --bootloader-id ubuntu /dev/sda" so I maybe have to use the "bootadm install-bootloader" instead

UPDATE2: ok these are the commands, it seems. Taken from http://docs.oracle.com/cd/E19253-01/...psb/index.html
First I boot from USB stick Solaris, and then type:

Code:

zpool import -R /a rpool
zfs list
zfs mount rpool/ROOT/sol10-u6 <- this contains the operating system
cd /a
bootadm install-bootloader -P rpool
zpool export rpool

Ok here is another set of commands:
zfs - Solaris 11: Accessing a pool on disk from live DVD? - Unix & Linux Stack Exchange
From the live CD desktop:

Code:

# zpool import -f rpool
# beadm list
be_find_current_be: failed to find current BE name
be_find_current_be: failed to find current BE name
BE                 Active Mountpoint Space  Policy Created          
--                 ------ ---------- -----  ------ -------          
solaris            -      -          11.45M static 2011-10-22 00:30 
solaris-2          R      -          12.69G static 2011-10-21 21:04 
# mkdir /a
# beadm mount solaris-2 /a
# TERM=vt100
# export TERM
# cd /a
# bootadm install-bootloader -P rpool
# beadm umount solaris-2
# halt

Hmmm... these commands are used if I want to change a BE. But here I want to change the disk, not a BE. So these commands are not usable for me.


UPDATE3:
Ok i finally settled down for these commands. I am going to use these.
x86: Advanced GRUB Administration and Troubleshooting - Booting and Shutting Down Oracle Solaris 11.1 Systems


Boot from Solaris media.
Import root pool:

Code:

# zpool import -f pool-name

Install the boot loader:
# bootadm install-bootloader [-f] -P pool-name

Export the root pool:
# zpool export pool-name

reboot the system.


UPDATE3:
I am testing right now, and I will write a cleaned up version if I solve this. This is just my scratch notes while testing this.
I have done this:
-booted from Solaris 11.3 usb media

Code:

-su, password is "solaris"
-zpool import -f rpool
-zpool status
  pool: rpool
 state: ONLINE
  scan: none requested
config:

    NAME        STATE     READ WRITE CKSUM
    rpool       ONLINE       0     0     0
      c3t2d0s0  ONLINE       0     0     0

-bootadm list-menu -P rpool
root@solaris:~# bootadm install-bootloader -P rpool
bootadm: GRUB2 installation failed

And now I dont know what to do. man pages say I should add -M switch on x86.

Code:

root@solaris:~# bootadm install-bootloader -P rpool -M c3t2d0s0
bootadm: GRUB2 installation failed

Question: is the correct name of the partition really c3t2d0s0? Sometimes people exchange to c3t2d0p0

---------- Post updated at 10:03 AM ---------- Previous update was at 05:08 AM ----------

Ok, I think it boils down to this line, which I can not execute:

Code:

# bootadm install-bootloader -P rpool
bootadm: GRUB2 installation failed

Anyone knows why?