Category Archives: UEFI

FreeBSD’s UEFI boot loader now supports ZFS pools

As of r294999 it’s possible to boot FreeBSD/amd64 stable/10 from ZFS pools on systems running UEFI firmware. Up until now I have booted my UEFI ZFS laptop using the older boot1.efi boot loader with /boot located on a UFS partition. Earlier today I updated my EFI System Partition (ESP), put /boot back where it belongs, in the ZFS pool, and scrapped the UFS partition. Thanks to everyone who made this happen.

UEFI, GPT, Windows 10, FreeBSD 10, and rEFInd

Over the last few days have I experimented with UEFI and GPT in VirtualBox 4.3.26. The goal was to multiboot various operating system, in this case Windows 10 Enterprise Technical Preview 9926 x64 and FreeBSD/amd64 stable/10.

First, I thought of persuading the UEFI firmware to always present its boot menu. It sure beats remembering to press F12 each time I want to boot a different operating system. This proved impossible for a number of reasons.

Next, I came across The rEFInd Boot Manager. After a quick glance I saw this is exactly what I want, a UEFI boot manager. Continue reading UEFI, GPT, Windows 10, FreeBSD 10, and rEFInd