Installing FreeBSD 10.0 to GPT volume
Warren Block
wblock at wonkity.com
Wed Mar 26 04:37:27 UTC 2014
On Tue, 25 Mar 2014, Steven Friedrich wrote:
> I have tried everything that I can gleen from the gpart, gptboot, boot0cfg
> man pages as well as the handbook.
boot0cfg should not be used with GPT, it's for plain MBR.
> Does bsdinstall write boot code to gpt partitions?
Yes, it writes the GPT bootcode into the freebsd-boot partition.
> I have tried to install several times, even using gpart to write boot code
> to the GPT partition as well as a freebsd-boot partition. I've installed a
> protective mbr. Nothing appears to work.
What happens? Are there any messages?
> The drive is a 3TB Toshiba USB 3.0 external drive. The computer is a
> Samsung series 7 CHRONOS with Pheonix BIOS with UEFI support. I have tried
> UEFI enabled and disabled.
Legacy boot has to be enabled. But some UEFI BIOS implementations are
very touchy about standards, and will only boot if the single PMBR
partition is set inactive. Likewise, some BIOS implementations are
strict and will not boot unless the single PMBR partition is marked
active: https://forums.freebsd.org/viewtopic.php?t=42781
Additionally, some implementations of either type make stupid
assumptions, like assuming that GPT partitions always mean a UEFI disk.
If that is the case, a BIOS update can help. Otherwise, it may be
necessary to use MBR paritioning.
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