dracut/0011-dracut-functions.sh-make-use-of-findmnt.patch
Harald Hoyer ab11ed5290 dracut-027-17.git20130409
- only include needed /etc/crypttab entries
Resolves:rhbz#919752
- add support for bridge over team and vlan
- support multiple bonding interfaces
- add "action_on_fail=" kernel command line parameter
- add support for bridge over a vlan tagged interface
2013-04-09 14:39:24 +02:00

210 lines
6.5 KiB
Diff

From 9d36d4fb1d0774d9ef0597abb79390e88771bf1e Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Tue, 9 Apr 2013 10:47:39 +0200
Subject: [PATCH] dracut-functions.sh: make use of findmnt
---
dracut-functions.sh | 163 +++++++++++++++++++++-------------------------------
1 file changed, 64 insertions(+), 99 deletions(-)
diff --git a/dracut-functions.sh b/dracut-functions.sh
index eba7412..96d3c6e 100755
--- a/dracut-functions.sh
+++ b/dracut-functions.sh
@@ -319,131 +319,96 @@ get_maj_min() {
# $ find_block_device /usr
# 8:4
find_block_device() {
- local _x _mpt _majmin _dev _fs _maj _min _find_mpt
+ local _majmin _dev _majmin _find_mpt
_find_mpt="$1"
if [[ $use_fstab != yes ]]; then
- while read _x; do
- set -- $_x
- _majmin="$3"
- _mpt="$5"
- [[ $8 = "-" ]] && shift
- _fs="$8"
- _dev="$9"
- [[ $_mpt = $_find_mpt ]] || continue
- [[ $_fs = nfs ]] && { echo $_dev; return 0;}
- [[ $_fs = nfs3 ]] && { echo $_dev; return 0;}
- [[ $_fs = nfs4 ]] && { echo $_dev; return 0;}
- [[ $_fs = btrfs ]] && {
- get_maj_min $_dev
- return 0;
- }
- if [[ ${_majmin#0:} = $_majmin ]]; then
- echo $_majmin
- return 0 # we have a winner!
+ [[ -d $_find_mpt/. ]]
+ while read _majmin _dev; do
+ if [[ -b $_dev ]]; then
+ if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then
+ read _majmin < <(get_maj_min $_dev)
+ fi
+ if [[ $_majmin ]]; then
+ echo $_majmin
+ else
+ echo $_dev
+ fi
+ return 0
+ fi
+ if [[ $_dev = *:* ]]; then
+ echo $_dev
+ return 0
fi
- done < /proc/self/mountinfo
+ done < <(findmnt -e -v -n -o 'MAJ:MIN,SOURCE' "$_find_mpt")
fi
# fall back to /etc/fstab
- while read _dev _mpt _fs _x; do
- [ "${_dev%%#*}" != "$_dev" ] && continue
-
- if [[ $_mpt = $_find_mpt ]]; then
- [[ $_fs = nfs ]] && { echo $_dev; return 0;}
- [[ $_fs = nfs3 ]] && { echo $_dev; return 0;}
- [[ $_fs = nfs4 ]] && { echo $_dev; return 0;}
- [[ $_dev != ${_dev#UUID=} ]] && _dev=/dev/disk/by-uuid/${_dev#UUID=}
- [[ $_dev != ${_dev#LABEL=} ]] && _dev=/dev/disk/by-label/${_dev#LABEL=}
- [[ -b $_dev ]] || return 1 # oops, not a block device.
- get_maj_min "$_dev" && return 0
+
+ while read _majmin _dev; do
+ if ! [[ $_dev ]]; then
+ _dev="$_majmin"
+ unset _majmin
+ fi
+ if [[ -b $_dev ]]; then
+ [[ $_majmin ]] || read _majmin < <(get_maj_min $_dev)
+ if [[ $_majmin ]]; then
+ echo $_majmin
+ else
+ echo $_dev
+ fi
+ return 0
+ fi
+ if [[ $_dev = *:* ]]; then
+ echo $_dev
+ return 0
fi
- done < /etc/fstab
+ done < <(findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' "$_find_mpt")
return 1
}
-# find_dev_fstype <device>
-# Echo the filesystem type for a given device.
+# find_mp_fstype <mountpoint>
+# Echo the filesystem type for a given mountpoint.
# /proc/self/mountinfo is taken as the primary source of information
# and /etc/fstab is used as a fallback.
# No newline is appended!
# Example:
-# $ find_dev_fstype /dev/sda2;echo
+# $ find_mp_fstype /;echo
# ext4
-find_dev_fstype() {
- local _x _mpt _majmin _dev _fs _maj _min _find_dev
- _find_dev="$1"
- strstr "$_find_dev" "/dev" || _find_dev="/dev/block/$_find_dev"
- while read _x; do
- set -- $_x
- _majmin="$3"
- _mpt="$5"
- [[ $8 = "-" ]] && shift
- _fs="$8"
- _dev="$9"
- strstr "$_dev" "/dev" || continue
- [[ $_dev -ef $_find_dev ]] || continue
- [[ $_fs = "autofs" ]] && continue
- echo -n $_fs;
- return 0;
- done < /proc/self/mountinfo
+find_mp_fstype() {
+ local _fs
- # fall back to /etc/fstab
- while read _dev _mpt _fs _x; do
- [ "${_dev%%#*}" != "$_dev" ] && continue
- case "$_dev" in
- LABEL=*)
- _dev="$(echo $_dev | sed 's,/,\\x2f,g')"
- _dev="/dev/disk/by-label/${_dev#LABEL=}"
- ;;
- UUID=*)
- _dev="/dev/disk/by-uuid/${_dev#UUID=}"
- ;;
- PARTUUID=*)
- _dev="/dev/disk/by-partuuid/${_dev#PARTUUID=}"
- ;;
- esac
+ if [[ $use_fstab != yes ]]; then
+ while read _fs; do
+ [[ $_fs ]] || continue
+ [[ $_fs = "autofs" ]] && continue
+ echo -n $_fs
+ return 0
+ done < <(findmnt -e -v -n -o 'FSTYPE' "$1")
+ fi
- [[ $_dev -ef $_find_dev ]] || continue
- echo -n $_fs;
- return 0;
- done < /etc/fstab
+ while read _fs; do
+ [[ $_fs ]] || continue
+ [[ $_fs = "autofs" ]] && continue
+ echo -n $_fs
+ return 0
+ done < <(findmnt --fstab -e -v -n -o 'FSTYPE' "$1")
return 1
}
-# find_mp_fstype <mountpoint>
-# Echo the filesystem type for a given mountpoint.
+# find_dev_fstype <device>
+# Echo the filesystem type for a given device.
# /proc/self/mountinfo is taken as the primary source of information
# and /etc/fstab is used as a fallback.
# No newline is appended!
# Example:
-# $ find_mp_fstype /;echo
+# $ find_dev_fstype /dev/sda2;echo
# ext4
-find_mp_fstype() {
- local _x _mpt _majmin _dev _fs _maj _min _find_mpt
- _find_mpt="$1"
- while read _x; do
- set -- $_x
- _majmin="$3"
- _mpt="$5"
- [[ $8 = "-" ]] && shift
- _fs="$8"
- _dev="$9"
- [[ $_mpt = $_find_mpt ]] || continue
- [[ $_fs = "autofs" ]] && continue
- echo -n $_fs;
- return 0;
- done < /proc/self/mountinfo
-
- # fall back to /etc/fstab
- while read _dev _mpt _fs _x; do
- [ "${_dev%%#*}" != "$_dev" ] && continue
- [[ $_mpt = $_find_mpt ]] || continue
- echo -n $_fs;
- return 0;
- done < /etc/fstab
-
- return 1
+find_dev_fstype() {
+ local _x _mpt _majmin _dev _fs _maj _min _find_dev
+ _find_dev="$1"
+ [[ "$_find_dev" = /dev* ]] || _find_dev="/dev/block/$_find_dev"
+ find_mp_fstype "$_find_dev"
}
# finds the major:minor of the block device backing the root filesystem.