Hi there,
If you used this
[code]
zpool create -m /mnt/solaris solaris /dev/hdd2
[/code]
In the same partition where you had opensolaris ... well ... then it's gone.
You just overwrited your rootfs. If it was in another partition than you can
try and boot with opensolaris cd.
When you got booted up you can see if your zfs partition and data are still
there. If so, you can do fdisk /dev/dsk/<hdd> and mark your partition as active.
Or before that you can try with your grub from gentoo
title Gentoo
rootnoverify (hdX,Y)
makeactive
chainloader +1
The partition has to be active in order to boot.
If you grub is gone, but your rootfs has data, you can resintall grub again
let's assume that you have your rootfs mounted in /a
do $installboot -f /a/boot/grub/stage1 /a/boot/grub/stage2 /dev/rdsk/<hdd>
HTH
Ether
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