[[!template id=project

title="ZFS root support (bootloader and mount_root)"

contact="""
[tech-kern](mailto:tech-kern@NetBSD.org)
"""

mentors="""
[tech-kern](mailto:tech-kern@NetBSD.org)
"""

category="kernel"
difficulty="easy"
duration="1-2 months"
done_by="Simon Burge"

description="""
This project consists of two parts: getting the bootloader code ("libsa") to
read ZFS filesystems, and enabling mounting ZFS as a root filesystem.

For ZFS bootloader support, fortunately code already exists in the FreeBSD
variant of libsa, so it's a matter of adapting it.

Milestones:

ZFS bootloader:

* Setup test environment for testing bootloader changes, experiment with debug printing in libsa
* Identify & import ZFS libsa code in FreeBSD
* Read a kernel from a ZFS filesystem, while booting into a non-ZFS root.

ZFS as root filesystem:

* Understanding what root mount functions must do
* ???
* Write one for ZFS on NetBSD

Stretch goal:

* Pass a parameter for which ZFS snapshot to boot to, using the bootloader.
"""

]]

[[!tag gsoc]]