mirror_zfs/contrib/initramfs/hooks/zfs.in
наб 5236eafdcd
i-t: rewrite hooks
This produces a leaner image, doesn't fail if zdb doesn't exist,
properly handles hostnameless systems, doesn't mention crypto modules
for no reason, doesn't add useless empty executable in hopes an
eight-year-old PR is merged, uses i-t builtins for all copies

Also optimize the checkbashisms filter to spawn one (or a few) awks
instead of one per regular file and remove initramfs/hooks therefrom due
to a command -v false positive

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12017
2021-05-13 21:47:53 -07:00

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#!/bin/sh
#
# Add OpenZFS filesystem capabilities to an initrd, usually for a native ZFS root.
#
if [ "$1" = "prereqs" ]; then
echo "udev"
exit
fi
. /usr/share/initramfs-tools/hook-functions
for req in "@sbindir@/zpool" "@sbindir@/zfs" "@mounthelperdir@/mount.zfs"; do
copy_exec "$req" || {
echo "$req not available!" >&2
exit 2
}
done
copy_exec "@sbindir@/zdb"
copy_exec "@udevdir@/vdev_id"
copy_exec "@udevdir@/zvol_id"
if command -v systemd-ask-password > /dev/null; then
copy_exec "$(command -v systemd-ask-password)"
fi
# We use pthreads, but i-t from buster doesn't automatically
# copy this indirect dependency: this can be removed when buster finally dies.
for libgcc in $(find /lib/ -type f -name libgcc_s.so.[1-9]); do
copy_exec "$libgcc"
done
if [ @LIBFETCH_DYNAMIC@ != 0 ]; then
for libfetch in $(find /lib/ -name @LIBFETCH_SONAME@); do
copy_exec "$libfetch"
done
fi
copy_file config "/etc/hostid"
copy_file cache "@sysconfdir@/zfs/zpool.cache"
copy_file config "@initconfdir@/zfs"
copy_file config "@sysconfdir@/zfs/zfs-functions"
copy_file config "@sysconfdir@/zfs/vdev_id.conf"
copy_file rule "@udevruledir@/60-zvol.rules"
copy_file rule "@udevruledir@/69-vdev.rules"
manual_add_modules zfs
if [ -f "/etc/hostname" ]; then
copy_file config "/etc/hostname"
else
hostname="$(mktemp -t hostname.XXXXXXXXXX)"
hostname > "$hostname"
copy_file config "$hostname" "/etc/hostname"
rm -f "$hostname"
fi