I read that thread and the one it refers to. Based upon the log (/dev/rdsk/c8d0p0), I believe that
the install program is trying to re-write the MBR and dying.
I tried using a CD-ROM with Solaris x86 2010.11 Live. It has a known problem of deleting all
partitions above 16 (which it did). It still had problems with the disk layout, so I had to delete
all logical partitions, keeping just: IBM BootManager, Windows 7, and Solaris as primaries.
That did install, but when I tried to do Update Manager, it complained that it was a Live system,
so would not run. I then used the CD-ROM with Solaris x86 11.1 text. It installed "OK" and booted.
I then booted Windows from the Solairs GRUB. In Windows, I ran DFSee and it showed me
that one (or both) of those Solaris installs had changed the hard disk drive (HDD) geometry!
My HDD is setup with 56 sectors / track and 255 tracks / cylinder (I am getting ready to
install a solid state disk (SSD) in my laptop and want tracks that are multiples of 8*512 sectors).
Solaris had changed it to 63 sectors and 255 tracks. I changed the geometry back to 56 sectors
and the MBR back to the DFSee one and made the IBM BootManger the active boot partition.
Solaris is bootable from that configuration. I restored all the partitions that the Solaris install
had deleted. It is not clear to me if Solaris really likes the geometry changed from 63 to 56
sectors per track (might mess up partition boundaries).
The logical partitions that I deleted had:
Linux ext3, ext4
DOS FAT-16, FAT-32
OS/2 hpfs, jfs