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Refactor dracut module
[FreeBSD/FreeBSD.git] / dracut / 90zfs / parse-zfs.sh.in
1 #!/bin/sh
2
3 . /lib/dracut-lib.sh
4
5 # Let the command line override our host id.
6 spl_hostid=`getarg spl_hostid=`
7 if [ -n "${spl_hostid}" ] ; then
8         info "ZFS: Using hostid from command line: ${spl_hostid}"
9         AA=`echo ${spl_hostid} | cut -b 1,2`
10         BB=`echo ${spl_hostid} | cut -b 3,4`
11         CC=`echo ${spl_hostid} | cut -b 5,6`
12         DD=`echo ${spl_hostid} | cut -b 7,8`
13         printf "\x${DD}\x${CC}\x${BB}\x${AA}" >/etc/hostid
14 elif [ -f "/etc/hostid" ] ; then
15         info "ZFS: Using hostid from /etc/hostid: `hostid`"
16 else
17         warn "ZFS: No hostid found on kernel command line or /etc/hostid."
18         warn "ZFS: Pools may not import correctly."
19 fi
20
21 wait_for_zfs=0
22 case "${root}" in
23         ""|zfs|zfs:)
24                 # We'll take root unset, root=zfs, or root=zfs:
25                 # No root set, so we want to read the bootfs attribute.  We
26                 # can't do that until udev settles so we'll set dummy values
27                 # and hope for the best later on.
28                 root="zfs:AUTO"
29                 rootok=1
30                 wait_for_zfs=1
31
32                 info "ZFS: Enabling autodetection of bootfs after udev settles."
33                 ;;
34
35         ZFS\=*|zfs:*|zfs:FILESYSTEM\=*|FILESYSTEM\=*)
36                 # root is explicit ZFS root.  Parse it now.  We can handle
37                 # a root=... param in any of the following formats:
38                 # root=ZFS=rpool/ROOT
39                 # root=zfs:rpool/ROOT
40                 # root=zfs:FILESYSTEM=rpool/ROOT
41                 # root=FILESYSTEM=rpool/ROOT
42
43                 # Strip down to just the pool/fs
44                 root="${root#zfs:}"
45                 root="${root#FILESYSTEM=}"
46                 root="zfs:${root#ZFS=}"
47                 rootok=1
48                 wait_for_zfs=1
49
50                 info "ZFS: Set ${root} as bootfs."
51                 ;;
52 esac
53
54 # Make sure Dracut is happy that we have a root and will wait for ZFS
55 # modules to settle before mounting.
56 if [ ${wait_for_zfs} -eq 1 ]; then
57         ln -s /dev/null /dev/root 2>/dev/null
58         echo '[ -e /dev/zfs ]' > "${hookdir}/initqueue/finished/zfs.sh"
59 fi