FreeBSD 9.0 - GPT boot problems?

[Torfinn Ingolfsen]

On Sat, 24 Mar 2012 17:26:03 +0100
Torfinn Ingolfsen <torfinn.ingolfsen at getmail.no> wrote:

> Hi,
> I just installed FreeBSD 9.0-release / amd64 on a new machine (Acer Aspire X1470).
> I installed from a usb memory stick (the default amd64 image), which I booted by pressing "F12" and selecting it from the boot menu on the machine.
> I installed on a SSD (which replaced the hard drive originally in the machine), using the default scheme for 9.0 (GPT).
> The installation was painless (many thanks to all who made it that way), but when I try to boot the machine from the SSD afterwards, I just get this message from the BIOS:
> "ERROR: No boot disk has been detected or the disk has failed."
> I tried selecting the SSD from the boot menu (via F12) instead (it shows up as "EFI: M4-CT128M4SSD2"), but got the same message.
> I upgraded the BIOS from version P01-A3 to version P01-A4 (the newest available), still no dice.

Just an update: 
today I connected another disk to the machine (I used a sata-to-usb adapter, but I think that doesn't matter), this disk is MBR-partitioned,
and the machine boots from this with no problems using the boot menu (via F12).
root at kg-vm2# gpart show -p da1
=>       63  117210177    da1  MBR  (55G)
         63   29350692  da1s1  freebsd  (14G)
   29350755   29360079  da1s2  freebsd  [active]  (14G)
   58710834   58499406         - free -  (27G)

The non-working disk looks like this:
root at kg-vm2# gpart show -p ada0
=>       34  250069613    ada0  GPT  (119G)
         34        128  ada0p1  freebsd-boot  (64k)
        162  119537664  ada0p2  freebsd-ufs  (57G)
  119537826    8388608  ada0p3  freebsd-swap  (4.0G)
  127926434  121634816  ada0p4  freebsd-ufs  (58G)
  249561250     508397          - free -  (248M)


-- 
Torfinn