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16692e6ba0
Despite that dracut has a hard dependency on bash,
its modules doesn't, dracut only has a hard dependency on bash for
module-setup (on a fully usable machine). Inside initramfs, dracut
allows users choose from a list of handful other shells, e.g. bash,
busybox, dash, mkfsh.
In fact, my local machine's initramfs is being built with dash,
and it's functional for a very long time.
Before 64025fa3a (Silence 'make checkbashisms', 2020-08-20), we also
allows our users to have that right, too.
Let's fix the problem 'make checkbashisms' reported and allows our users
to have that right, again.
For 'plymouth' case, let's simply run the command inside the if instead
of checking for the existence of command before running it, because the
status is also failture if plymouth is unavailable.
While we're at it, let's remove an unnecessary fork for grep in
zfs-generator.sh.in and its following complicated 'if elif fi' with
a simple 'case ... esac'.
To support this change, also exclude 90zfs from "make checkbashisms"
because the current CI infrastructure ships an old version of
"checkbashisms", which complains about "command -v", while the current
latest "checkbashisms" thinks it's fine. In the near future, we can
revert that change to "Makefile.am" when CI infrastructure is updated.
Reviewed-by: Gabriel A. Devenyi <gdevenyi@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Closes #11244
63 lines
1.8 KiB
Bash
Executable File
63 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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. /lib/dracut-lib.sh
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# Let the command line override our host id.
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spl_hostid=$(getarg spl_hostid=)
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if [ -n "${spl_hostid}" ] ; then
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info "ZFS: Using hostid from command line: ${spl_hostid}"
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zgenhostid -f "${spl_hostid}"
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elif [ -f "/etc/hostid" ] ; then
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info "ZFS: Using hostid from /etc/hostid: $(hostid)"
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else
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warn "ZFS: No hostid found on kernel command line or /etc/hostid."
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warn "ZFS: Pools may not import correctly."
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fi
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wait_for_zfs=0
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case "${root}" in
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""|zfs|zfs:)
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# We'll take root unset, root=zfs, or root=zfs:
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# No root set, so we want to read the bootfs attribute. We
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# can't do that until udev settles so we'll set dummy values
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# and hope for the best later on.
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root="zfs:AUTO"
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rootok=1
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wait_for_zfs=1
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info "ZFS: Enabling autodetection of bootfs after udev settles."
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;;
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ZFS\=*|zfs:*|zfs:FILESYSTEM\=*|FILESYSTEM\=*)
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# root is explicit ZFS root. Parse it now. We can handle
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# a root=... param in any of the following formats:
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# root=ZFS=rpool/ROOT
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# root=zfs:rpool/ROOT
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# root=zfs:FILESYSTEM=rpool/ROOT
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# root=FILESYSTEM=rpool/ROOT
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# root=ZFS=pool+with+space/ROOT+WITH+SPACE (translates to root=ZFS=pool with space/ROOT WITH SPACE)
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# Strip down to just the pool/fs
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root="${root#zfs:}"
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root="${root#FILESYSTEM=}"
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root="zfs:${root#ZFS=}"
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# switch + with spaces because kernel cmdline does not allow us to quote parameters
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root=$(printf '%s\n' "$root" | sed "s/+/ /g")
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rootok=1
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wait_for_zfs=1
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info "ZFS: Set ${root} as bootfs."
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;;
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esac
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# Make sure Dracut is happy that we have a root and will wait for ZFS
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# modules to settle before mounting.
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if [ ${wait_for_zfs} -eq 1 ]; then
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ln -s /dev/null /dev/root 2>/dev/null
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initqueuedir="${hookdir}/initqueue/finished"
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test -d "${initqueuedir}" || {
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initqueuedir="${hookdir}/initqueue-finished"
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}
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echo '[ -e /dev/zfs ]' > "${initqueuedir}/zfs.sh"
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fi
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