zfs discuss - Sep 2010 - How to set zfs:zfs_recover=1 and aok=1 in GRUB at startup?

I can''t edit now my /etc/system file because system is not booting.
Is there a way to force this parameters to Solaris kernel on booting with Grub?
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If I launch opensolaris with "-kd" I''m able to do this:
aok/W 1

but if I type:
zfs_recover/W 1

then I get an unkown symbol name error.

Any idea how I could force this variables?
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when I execute
::load zfs

I get kernel panic because of this $*@#(*($@# space_map_add problem.
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Here is the solution (thanks to Gavin Maltby from mdb forum):

Boot with -kd option to enter in kmdb and type the following commands:
aok/W 1
::bp zfs`zfs_panic_recover
:c

wait that it stops at breakpoint then type this:
zfs_recover/W1
:z
:c
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