No it's not EFI. However I think it's the disk or SATA controller to blame. (which makes it also responsible for my distorted view on Opensolaris after having several issues)
Previously I had Opensolaris installed on this drive. Last week I upgraded Opensolaris by exactly the same procedure how I successfully succeeded it on another computer. When I rebooted the computer it became extremely slow. This morning I tried installing SXCE B91, but it didn't want to install. So I first formatted the drive to a Linux partition and retried. Then I could install SXCE B91. However, when rebooting the system behaved the same as with the OpenSolaris upgrade: extremely slow. Then I tried the following. I have actually three drives. On the second drive I have SXDE, so I decided to upgrade it to SXCE b91: booting the install DVD and selecting upgrade. Now guess what? This upgrade was completed successfully and the system works fine! This should prove that there is nothing wrong with SXCE b91 (and probably OpenSolaris and its upgrade) So in conclusion there are two possible issues: 1. The drive is broke (or perhaps damaged). This is hard to believe, since it's only a few months old. 2. Or could it be the motherboard (ASUS P5KR): this drive is listed as the third hard drive and in SATA connections after the DVD-drive, so fourth. I was also never able to mount this drive from the other two drives and vice versa. Additionally I could not burn a CD/DVD on OpenSolaris from this drive, while I could do it from Solaris 10 or SXDE from respectively the first and the second drive. This message posted from opensolaris.org
