81 lines
2.8 KiB
Diff
81 lines
2.8 KiB
Diff
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From 7b6bdc3f943c0e34671faca3b671074c77e64ff0 Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Tue, 19 Mar 2013 12:24:13 +0100
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Subject: [PATCH] nbd/nbdroot.sh: fix root != blockdev case
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---
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modules.d/95nbd/nbdroot.sh | 41 +++++++++++++++++++++--------------------
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1 file changed, 21 insertions(+), 20 deletions(-)
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diff --git a/modules.d/95nbd/nbdroot.sh b/modules.d/95nbd/nbdroot.sh
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index 4aebef0..1a1ed54 100755
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--- a/modules.d/95nbd/nbdroot.sh
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+++ b/modules.d/95nbd/nbdroot.sh
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@@ -17,18 +17,18 @@ PATH=/usr/sbin:/usr/bin:/sbin:/bin
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# root is in the form root=nbd:srv:port[:fstype[:rootflags[:nbdopts]]]
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netif="$1"
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-root="$2"
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+nroot="$2"
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NEWROOT="$3"
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# If it's not nbd we don't continue
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-[ "${root%%:*}" = "nbd" ] || return
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+[ "${nroot%%:*}" = "nbd" ] || return
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-root=${root#nbd:}
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-nbdserver=${root%%:*}; root=${root#*:}
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-nbdport=${root%%:*}; root=${root#*:}
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-nbdfstype=${root%%:*}; root=${root#*:}
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-nbdflags=${root%%:*}
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-nbdopts=${root#*:}
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+nroot=${nroot#nbd:}
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+nbdserver=${nroot%%:*}; nroot=${nroot#*:}
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+nbdport=${nroot%%:*}; nroot=${nroot#*:}
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+nbdfstype=${nroot%%:*}; nroot=${nroot#*:}
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+nbdflags=${nroot%%:*}
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+nbdopts=${nroot#*:}
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# If nbdport not an integer, then assume name based import
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if [ ! -z $(echo "$nbdport" | sed 's/[0-9]//g') ]; then
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@@ -92,26 +92,27 @@ while [ ! -b /dev/nbd0 ]; do
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else
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sleep 0.1
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fi
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- i=$(( $i + 1))
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+ i=$(($i + 1))
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done
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-nbd-client $preopts "$nbdserver" $nbdport /dev/nbd0 $opts || exit 1
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-
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# If we didn't get a root= on the command line, then we need to
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# add the udev rules for mounting the nbd0 device
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-root=$(getarg root=)
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-if [ -z "$root" ] || strstr "$root" "nbd:" || strstr "$root" "dhcp"; then
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- echo '[ -e /dev/root ] || { info=$(udevadm info --query=env --name=/dev/nbd0); [ -z "${info%%*ID_FS_TYPE*}" ] && { ln -s /dev/nbd0 /dev/root 2>/dev/null; type systemctl >/dev/null 2>&1 && systemctl --no-block start sysroot.mount;:; };} && rm $job;' \
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- > $hookdir/initqueue/settled/nbd.sh
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-
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+if [ -z "$root" -o -n "${root%%block:*}" -o "$root" = "block:/dev/root" ]; then
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+ printf 'KERNEL=="nbd0", ENV{DEVTYPE}!="partition", ENV{ID_FS_TYPE}=="?*", SYMLINK+="root"\n' >> /etc/udev/rules.d/99-nbd-root.rules
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+ udevadm control --reload
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type write_fs_tab >/dev/null 2>&1 || . /lib/fs-lib.sh
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- write_fs_tab /dev/nbd0 "$nbdfstype" "$fsopts"
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+ write_fs_tab /dev/root "$nbdfstype" "$fsopts"
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+ wait_for_dev /dev/root
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- printf '/bin/mount %s\n' \
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- "$NEWROOT" \
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- > $hookdir/mount/01-$$-nbd.sh
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+ if [ -z "$DRACUT_SYSTEMD" ]; then
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+ printf '/bin/mount %s\n' \
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+ "$NEWROOT" \
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+ > $hookdir/mount/01-$$-nbd.sh
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+ fi
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fi
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+nbd-client $preopts "$nbdserver" $nbdport /dev/nbd0 $opts || exit 1
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+
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# NBD doesn't emit uevents when it gets connected, so kick it
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echo change > /sys/block/nbd0/uevent
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udevadm settle
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