mirror of
https://github.com/dracutdevs/dracut.git
synced 2024-10-26 16:25:20 +03:00
dracut-functions.sh: make use of findmnt
This commit is contained in:
Harald Hoyer
parent
41bfa5dad1
commit
9d36d4fb1d
@ -319,44 +319,79 @@ 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
|
||||
done < /proc/self/mountinfo
|
||||
if [[ $_majmin ]]; then
|
||||
echo $_majmin
|
||||
else
|
||||
echo $_dev
|
||||
fi
|
||||
return 0
|
||||
fi
|
||||
if [[ $_dev = *:* ]]; then
|
||||
echo $_dev
|
||||
return 0
|
||||
fi
|
||||
done < <(findmnt -e -v -n -o 'MAJ:MIN,SOURCE' "$_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
|
||||
done < /etc/fstab
|
||||
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 $_dev
|
||||
return 0
|
||||
fi
|
||||
done < <(findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' "$_find_mpt")
|
||||
|
||||
return 1
|
||||
}
|
||||
|
||||
# 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_mp_fstype /;echo
|
||||
# ext4
|
||||
find_mp_fstype() {
|
||||
local _fs
|
||||
|
||||
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
|
||||
|
||||
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
|
||||
}
|
||||
@ -372,78 +407,8 @@ find_block_device() {
|
||||
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 $_fs;
|
||||
return 0;
|
||||
done < /proc/self/mountinfo
|
||||
|
||||
# fall back to /etc/fstab
|
||||
while read _dev _mpt _fs _x; do
|
||||
[ "${_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
|
||||
|
||||
[[ $_dev -ef $_find_dev ]] || continue
|
||||
echo -n $_fs;
|
||||
return 0;
|
||||
done < /etc/fstab
|
||||
|
||||
return 1
|
||||
}
|
||||
|
||||
# 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_mp_fstype /;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" = /dev* ]] || _find_dev="/dev/block/$_find_dev"
|
||||
find_mp_fstype "$_find_dev"
|
||||
}
|
||||
|
||||
# finds the major:minor of the block device backing the root filesystem.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user