Broken splashimage with illumos boot menu

Due to some misunderstanding, a solaris.xpm have been removed too early from illumos source tree. It results in problems while trying to boot your new illumos boot environment, if you have updated with onu.sh script.
If you happen to have this problem, what you need is modify your grub menu. Mine looks like this.

title os-devel_145
findroot (pool_rpool,0,a)
bootfs rpool/ROOT/os-devel_145
splashimage /boot/solaris.xpm
foreground d25f00
background 115d93
kernel$ /platform/i86pc/kernel/$ISADIR/unix -B $ZFS-BOOTFS,console=graphics
module$ /platform/i86pc/$ISADIR/boot_archive

What you need to do, is edit it, so it looks like below:

title os-devel_145
findroot (pool_rpool,0,a)
bootfs rpool/ROOT/os-devel_145
kernel$ /platform/i86pc/kernel/$ISADIR/unix -B $ZFS-BOOTFS
module$ /platform/i86pc/$ISADIR/boot_archive

On somewhat related note, booting to single user mode is done with adding -s at the end of the kernel$ line:

kernel$ /platform/i86pc/kernel/$ISADIR/unix -B $ZFS-BOOTFS -s

The problem with missing splashimage is known and a bug has been filed.