1 .\" Copyright (c) 2014 Andriy Gapon <avg@FreeBSD.org>
2 .\" All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
8 .\" notice, this list of conditions and the following disclaimer.
9 .\" 2. Redistributions in binary form must reproduce the above copyright
10 .\" notice, this list of conditions and the following disclaimer in the
11 .\" documentation and/or other materials provided with the distribution.
13 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 .Nd kernel bootstrapping final stage
33 is an extended variant of
35 with added support for booting from ZFS.
36 This document describes only differences from
40 supports the following format for specifying ZFS filesystems which
43 refers to a device specification:
45 .Ar zfs:pool/filesystem:
49 is a ZFS filesystem name as described in
56 refers to a ZFS filesystem, then
58 will instruct kernel to use that filesystem as the root filesystem.
59 .Ss ZFS Command Extensions
60 .Bl -tag -width Ds -compact
62 Lists ZFS pools in addition to disks and partitions.
65 shows more ZFS pool details in a format that resembles
69 .It Ic lszfs Ar filesystem
70 A ZFS extended command that can be used to explore the ZFS filesystem
72 Lists the immediate children of the
74 The filesystem hierarchy is rooted at a filesystem with the same name
78 .Bl -tag -width /boot/zfsloader -compact
79 .It Pa /boot/zfsloader
84 Set the default device used for loading a kernel from a ZFS filesystem:
85 .Bd -literal -offset indent
86 set currdev=zfs:rpool/ROOT/knowngood:
96 as shown in the example above is supported, it is advisable to use loader
97 beadm command or boot environment menu instead.
98 The reason is, the beadm or menu selection will also instruct loader to clean up
99 the currently set configuration and load configuration from the new boot