diff options
Diffstat (limited to 'contrib/dracut/90zfs/zfs-lib.sh.in')
| -rwxr-xr-x | contrib/dracut/90zfs/zfs-lib.sh.in | 61 |
1 files changed, 59 insertions, 2 deletions
diff --git a/contrib/dracut/90zfs/zfs-lib.sh.in b/contrib/dracut/90zfs/zfs-lib.sh.in index afd872d69..b48c97034 100755 --- a/contrib/dracut/90zfs/zfs-lib.sh.in +++ b/contrib/dracut/90zfs/zfs-lib.sh.in @@ -1,6 +1,6 @@ #!/bin/sh -command -v getarg >/dev/null || . /lib/dracut-lib.sh +command -v getarg >/dev/null || . /lib/dracut-lib.sh || . /usr/lib/dracut/modules.d/99base/dracut-lib.sh command -v getargbool >/dev/null || { # Compatibility with older Dracut versions. # With apologies to the Dracut developers. @@ -161,7 +161,9 @@ ask_for_password() { shift done - { flock -s 9; + { + flock -s 9 + # Prompt for password with plymouth, if installed and running. if plymouth --ping 2>/dev/null; then plymouth ask-for-password \ @@ -191,3 +193,58 @@ ask_for_password() { [ "$ret" -ne 0 ] && echo "Wrong password" >&2 return "$ret" } + +# Parse root=, rootfstype=, return them decoded and normalised to zfs:AUTO for auto, plain dset for explicit +# +# True if ZFS-on-root, false if we shouldn't +# +# Supported values: +# root= +# root=zfs +# root=zfs: +# root=zfs:AUTO +# +# root=ZFS=data/set +# root=zfs:data/set +# root=zfs:ZFS=data/set (as a side-effect; allowed but undocumented) +# +# rootfstype=zfs AND root=data/set <=> root=data/set +# rootfstype=zfs AND root= <=> root=zfs:AUTO +# +# '+'es in explicit dataset decoded to ' 's. +decode_root_args() { + if [ -n "$rootfstype" ]; then + [ "$rootfstype" = zfs ] + return + fi + + root=$(getarg root=) + rootfstype=$(getarg rootfstype=) + + # shellcheck disable=SC2249 + case "$root" in + ""|zfs|zfs:|zfs:AUTO) + root=zfs:AUTO + rootfstype=zfs + return 0 + ;; + + ZFS=*|zfs:*) + root="${root#zfs:}" + root="${root#ZFS=}" + root=$(echo "$root" | tr '+' ' ') + rootfstype=zfs + return 0 + ;; + esac + + if [ "$rootfstype" = "zfs" ]; then + case "$root" in + "") root=zfs:AUTO ;; + *) root=$(echo "$root" | tr '+' ' ') ;; + esac + return 0 + fi + + return 1 +} |