726 lines
20 KiB
Bash
Executable File
726 lines
20 KiB
Bash
Executable File
#!/bin/bash
|
|
#
|
|
# functions used by dracut and other tools.
|
|
#
|
|
# Copyright 2005-2009 Red Hat, Inc. All rights reserved.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
export LC_MESSAGES=C
|
|
|
|
# is_func <command>
|
|
# Check whether $1 is a function.
|
|
is_func() {
|
|
[[ "$(type -t "$1")" = "function" ]]
|
|
}
|
|
|
|
|
|
# Generic substring function. If $2 is in $1, return 0.
|
|
strstr() { [[ $1 = *"$2"* ]]; }
|
|
# Generic glob matching function. If glob pattern $2 matches anywhere in $1, OK
|
|
strglobin() { [[ $1 = *$2* ]]; }
|
|
# Generic glob matching function. If glob pattern $2 matches all of $1, OK
|
|
strglob() { [[ $1 = $2 ]]; }
|
|
# returns OK if $1 contains literal string $2 at the beginning, and isn't empty
|
|
str_starts() { [ "${1#"$2"*}" != "$1" ]; }
|
|
# returns OK if $1 contains literal string $2 at the end, and isn't empty
|
|
str_ends() { [ "${1%*"$2"}" != "$1" ]; }
|
|
|
|
# find a binary. If we were not passed the full path directly,
|
|
# search in the usual places to find the binary.
|
|
find_binary() {
|
|
local _delim
|
|
local l
|
|
local p
|
|
[[ -z ${1##/*} ]] || _delim="/"
|
|
|
|
if [[ "$1" == *.so* ]]; then
|
|
for l in libdirs ; do
|
|
if { $DRACUT_LDD "$dracutsysrootdir$l$_delim$1" &>/dev/null; }; then
|
|
printf "%s\n" "$1"
|
|
return 0
|
|
fi
|
|
done
|
|
if { $DRACUT_LDD "$dracutsysrootdir$_delim$1" &>/dev/null; }; then
|
|
printf "%s\n" "$1"
|
|
return 0
|
|
fi
|
|
fi
|
|
if [[ "$1" == */* ]]; then
|
|
if [[ -L $dracutsysrootdir$_delim$1 ]] || [[ -x $dracutsysrootdir$_delim$1 ]]; then
|
|
printf "%s\n" "$1"
|
|
return 0
|
|
fi
|
|
fi
|
|
for p in $DRACUT_PATH ; do
|
|
if [[ -L $dracutsysrootdir$p$_delim$1 ]] || [[ -x $dracutsysrootdir$p$_delim$1 ]]; then
|
|
printf "%s\n" "$1"
|
|
return 0
|
|
fi
|
|
done
|
|
|
|
[[ -n "$dracutsysrootdir" ]] && return 1
|
|
type -P "${1##*/}"
|
|
}
|
|
|
|
ldconfig_paths()
|
|
{
|
|
$DRACUT_LDCONFIG ${dracutsysrootdir:+-r ${dracutsysrootdir} -f /etc/ld.so.conf} -pN 2>/dev/null | grep -E -v '/(lib|lib64|usr/lib|usr/lib64)/[^/]*$' | sed -n 's,.* => \(.*\)/.*,\1,p' | sort | uniq
|
|
}
|
|
|
|
# Version comparision function. Assumes Linux style version scheme.
|
|
# $1 = version a
|
|
# $2 = comparision op (gt, ge, eq, le, lt, ne)
|
|
# $3 = version b
|
|
vercmp() {
|
|
local _n1=(${1//./ }) _op=$2 _n2=(${3//./ }) _i _res
|
|
|
|
for ((_i=0; ; _i++))
|
|
do
|
|
if [[ ! ${_n1[_i]}${_n2[_i]} ]]; then _res=0
|
|
elif ((${_n1[_i]:-0} > ${_n2[_i]:-0})); then _res=1
|
|
elif ((${_n1[_i]:-0} < ${_n2[_i]:-0})); then _res=2
|
|
else continue
|
|
fi
|
|
break
|
|
done
|
|
|
|
case $_op in
|
|
gt) ((_res == 1));;
|
|
ge) ((_res != 2));;
|
|
eq) ((_res == 0));;
|
|
le) ((_res != 1));;
|
|
lt) ((_res == 2));;
|
|
ne) ((_res != 0));;
|
|
esac
|
|
}
|
|
|
|
# Create all subdirectories for given path without creating the last element.
|
|
# $1 = path
|
|
mksubdirs() {
|
|
[[ -e ${1%/*} ]] || mkdir -m 0755 -p -- "${1%/*}"
|
|
}
|
|
|
|
# Function prints global variables in format name=value line by line.
|
|
# $@ = list of global variables' name
|
|
print_vars() {
|
|
local _var _value
|
|
|
|
for _var in "$@"
|
|
do
|
|
eval printf -v _value "%s" \""\$$_var"\"
|
|
[[ ${_value} ]] && printf '%s="%s"\n' "$_var" "$_value"
|
|
done
|
|
}
|
|
|
|
# normalize_path <path>
|
|
# Prints the normalized path, where it removes any duplicated
|
|
# and trailing slashes.
|
|
# Example:
|
|
# $ normalize_path ///test/test//
|
|
# /test/test
|
|
normalize_path() {
|
|
shopt -q -s extglob
|
|
set -- "${1//+(\/)//}"
|
|
shopt -q -u extglob
|
|
printf "%s\n" "${1%/}"
|
|
}
|
|
|
|
# convert_abs_rel <from> <to>
|
|
# Prints the relative path, when creating a symlink to <to> from <from>.
|
|
# Example:
|
|
# $ convert_abs_rel /usr/bin/test /bin/test-2
|
|
# ../../bin/test-2
|
|
# $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test
|
|
convert_abs_rel() {
|
|
local __current __absolute __abssize __cursize __newpath
|
|
local -i __i __level
|
|
|
|
set -- "$(normalize_path "$1")" "$(normalize_path "$2")"
|
|
|
|
# corner case #1 - self looping link
|
|
[[ "$1" == "$2" ]] && { printf "%s\n" "${1##*/}"; return; }
|
|
|
|
# corner case #2 - own dir link
|
|
[[ "${1%/*}" == "$2" ]] && { printf ".\n"; return; }
|
|
|
|
IFS="/" __current=($1)
|
|
IFS="/" __absolute=($2)
|
|
|
|
__abssize=${#__absolute[@]}
|
|
__cursize=${#__current[@]}
|
|
|
|
while [[ "${__absolute[__level]}" == "${__current[__level]}" ]]
|
|
do
|
|
(( __level++ ))
|
|
if (( __level > __abssize || __level > __cursize ))
|
|
then
|
|
break
|
|
fi
|
|
done
|
|
|
|
for ((__i = __level; __i < __cursize-1; __i++))
|
|
do
|
|
if ((__i > __level))
|
|
then
|
|
__newpath=$__newpath"/"
|
|
fi
|
|
__newpath=$__newpath".."
|
|
done
|
|
|
|
for ((__i = __level; __i < __abssize; __i++))
|
|
do
|
|
if [[ -n $__newpath ]]
|
|
then
|
|
__newpath=$__newpath"/"
|
|
fi
|
|
__newpath=$__newpath${__absolute[__i]}
|
|
done
|
|
|
|
printf "%s\n" "$__newpath"
|
|
}
|
|
|
|
|
|
# get_fs_env <device>
|
|
# Get and the ID_FS_TYPE variable from udev for a device.
|
|
# Example:
|
|
# $ get_fs_env /dev/sda2
|
|
# ext4
|
|
get_fs_env() {
|
|
[[ $1 ]] || return
|
|
unset ID_FS_TYPE
|
|
ID_FS_TYPE=$(blkid -u filesystem -o export -- "$1" \
|
|
| while read line || [ -n "$line" ]; do
|
|
if [[ "$line" == TYPE\=* ]]; then
|
|
printf "%s" "${line#TYPE=}";
|
|
exit 0;
|
|
fi
|
|
done)
|
|
if [[ $ID_FS_TYPE ]]; then
|
|
printf "%s" "$ID_FS_TYPE"
|
|
return 0
|
|
fi
|
|
return 1
|
|
}
|
|
|
|
# get_maj_min <device>
|
|
# Prints the major and minor of a device node.
|
|
# Example:
|
|
# $ get_maj_min /dev/sda2
|
|
# 8:2
|
|
get_maj_min() {
|
|
local _majmin
|
|
_majmin="$(stat -L -c '%t:%T' "$1" 2>/dev/null)"
|
|
printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))"
|
|
}
|
|
|
|
|
|
# get_devpath_block <device>
|
|
# get the DEVPATH in /sys of a block device
|
|
get_devpath_block() {
|
|
local _majmin _i
|
|
_majmin=$(get_maj_min "$1")
|
|
|
|
for _i in /sys/block/*/dev /sys/block/*/*/dev; do
|
|
[[ -e "$_i" ]] || continue
|
|
if [[ "$_majmin" == "$(<"$_i")" ]]; then
|
|
printf "%s" "${_i%/dev}"
|
|
return 0
|
|
fi
|
|
done
|
|
return 1
|
|
}
|
|
|
|
# get a persistent path from a device
|
|
get_persistent_dev() {
|
|
local i _tmp _dev _pol
|
|
|
|
_dev=$(get_maj_min "$1")
|
|
[ -z "$_dev" ] && return
|
|
|
|
if [[ -n "$persistent_policy" ]]; then
|
|
_pol="/dev/disk/${persistent_policy}/*"
|
|
else
|
|
_pol=
|
|
fi
|
|
|
|
for i in \
|
|
$_pol \
|
|
/dev/mapper/* \
|
|
/dev/disk/by-uuid/* \
|
|
/dev/disk/by-label/* \
|
|
/dev/disk/by-partuuid/* \
|
|
/dev/disk/by-partlabel/* \
|
|
/dev/disk/by-id/* \
|
|
/dev/disk/by-path/* \
|
|
; do
|
|
[[ -e "$i" ]] || continue
|
|
[[ $i == /dev/mapper/control ]] && continue
|
|
[[ $i == /dev/mapper/mpath* ]] && continue
|
|
_tmp=$(get_maj_min "$i")
|
|
if [ "$_tmp" = "$_dev" ]; then
|
|
printf -- "%s" "$i"
|
|
return
|
|
fi
|
|
done
|
|
printf -- "%s" "$1"
|
|
}
|
|
|
|
expand_persistent_dev() {
|
|
local _dev=$1
|
|
|
|
case "$_dev" in
|
|
LABEL=*)
|
|
_dev="/dev/disk/by-label/${_dev#LABEL=}"
|
|
;;
|
|
UUID=*)
|
|
_dev="${_dev#UUID=}"
|
|
_dev="${_dev,,}"
|
|
_dev="/dev/disk/by-uuid/${_dev}"
|
|
;;
|
|
PARTUUID=*)
|
|
_dev="${_dev#PARTUUID=}"
|
|
_dev="${_dev,,}"
|
|
_dev="/dev/disk/by-partuuid/${_dev}"
|
|
;;
|
|
PARTLABEL=*)
|
|
_dev="/dev/disk/by-partlabel/${_dev#PARTLABEL=}"
|
|
;;
|
|
esac
|
|
printf "%s" "$_dev"
|
|
}
|
|
|
|
shorten_persistent_dev() {
|
|
local _dev="$1"
|
|
case "$_dev" in
|
|
/dev/disk/by-uuid/*)
|
|
printf "%s" "UUID=${_dev##*/}";;
|
|
/dev/disk/by-label/*)
|
|
printf "%s" "LABEL=${_dev##*/}";;
|
|
/dev/disk/by-partuuid/*)
|
|
printf "%s" "PARTUUID=${_dev##*/}";;
|
|
/dev/disk/by-partlabel/*)
|
|
printf "%s" "PARTLABEL=${_dev##*/}";;
|
|
*)
|
|
printf "%s" "$_dev";;
|
|
esac
|
|
}
|
|
|
|
# find_block_device <mountpoint>
|
|
# Prints the major and minor number of the block device
|
|
# for a given mountpoint.
|
|
# Unless $use_fstab is set to "yes" the functions
|
|
# uses /proc/self/mountinfo as the primary source of the
|
|
# information and only falls back to /etc/fstab, if the mountpoint
|
|
# is not found there.
|
|
# Example:
|
|
# $ find_block_device /usr
|
|
# 8:4
|
|
find_block_device() {
|
|
local _dev _majmin _find_mpt
|
|
_find_mpt="$1"
|
|
if [[ $use_fstab != yes ]]; then
|
|
[[ -d $_find_mpt/. ]]
|
|
findmnt -e -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \
|
|
while read _majmin _dev || [ -n "$_dev" ]; do
|
|
if [[ -b $_dev ]]; then
|
|
if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then
|
|
_majmin=$(get_maj_min $_dev)
|
|
fi
|
|
if [[ $_majmin ]]; then
|
|
printf "%s\n" "$_majmin"
|
|
else
|
|
printf "%s\n" "$_dev"
|
|
fi
|
|
return 0
|
|
fi
|
|
if [[ $_dev = *:* ]]; then
|
|
printf "%s\n" "$_dev"
|
|
return 0
|
|
fi
|
|
done; return 1; } && return 0
|
|
fi
|
|
# fall back to /etc/fstab
|
|
|
|
findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \
|
|
while read _majmin _dev || [ -n "$_dev" ]; do
|
|
if ! [[ $_dev ]]; then
|
|
_dev="$_majmin"
|
|
unset _majmin
|
|
fi
|
|
if [[ -b $_dev ]]; then
|
|
[[ $_majmin ]] || _majmin=$(get_maj_min $_dev)
|
|
if [[ $_majmin ]]; then
|
|
printf "%s\n" "$_majmin"
|
|
else
|
|
printf "%s\n" "$_dev"
|
|
fi
|
|
return 0
|
|
fi
|
|
if [[ $_dev = *:* ]]; then
|
|
printf "%s\n" "$_dev"
|
|
return 0
|
|
fi
|
|
done; return 1; } && return 0
|
|
|
|
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
|
|
findmnt -e -v -n -o 'FSTYPE' --target "$1" | { \
|
|
while read _fs || [ -n "$_fs" ]; do
|
|
[[ $_fs ]] || continue
|
|
[[ $_fs = "autofs" ]] && continue
|
|
printf "%s" "$_fs"
|
|
return 0
|
|
done; return 1; } && return 0
|
|
fi
|
|
|
|
findmnt --fstab -e -v -n -o 'FSTYPE' --target "$1" | { \
|
|
while read _fs || [ -n "$_fs" ]; do
|
|
[[ $_fs ]] || continue
|
|
[[ $_fs = "autofs" ]] && continue
|
|
printf "%s" "$_fs"
|
|
return 0
|
|
done; return 1; } && return 0
|
|
|
|
return 1
|
|
}
|
|
|
|
# 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_dev_fstype /dev/sda2;echo
|
|
# ext4
|
|
find_dev_fstype() {
|
|
local _find_dev _fs
|
|
_find_dev="$1"
|
|
if ! [[ "$_find_dev" = /dev* ]]; then
|
|
[[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev"
|
|
fi
|
|
|
|
if [[ $use_fstab != yes ]]; then
|
|
findmnt -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \
|
|
while read _fs || [ -n "$_fs" ]; do
|
|
[[ $_fs ]] || continue
|
|
[[ $_fs = "autofs" ]] && continue
|
|
printf "%s" "$_fs"
|
|
return 0
|
|
done; return 1; } && return 0
|
|
fi
|
|
|
|
findmnt --fstab -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \
|
|
while read _fs || [ -n "$_fs" ]; do
|
|
[[ $_fs ]] || continue
|
|
[[ $_fs = "autofs" ]] && continue
|
|
printf "%s" "$_fs"
|
|
return 0
|
|
done; return 1; } && return 0
|
|
|
|
return 1
|
|
}
|
|
|
|
# find_mp_fsopts <mountpoint>
|
|
# Echo the filesystem options 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_fsopts /;echo
|
|
# rw,relatime,discard,data=ordered
|
|
find_mp_fsopts() {
|
|
if [[ $use_fstab != yes ]]; then
|
|
findmnt -e -v -n -o 'OPTIONS' --target "$1" 2>/dev/null && return 0
|
|
fi
|
|
|
|
findmnt --fstab -e -v -n -o 'OPTIONS' --target "$1"
|
|
}
|
|
|
|
# find_dev_fsopts <device>
|
|
# Echo the filesystem options for a given device.
|
|
# /proc/self/mountinfo is taken as the primary source of information
|
|
# and /etc/fstab is used as a fallback.
|
|
# Example:
|
|
# $ find_dev_fsopts /dev/sda2
|
|
# rw,relatime,discard,data=ordered
|
|
find_dev_fsopts() {
|
|
local _find_dev _opts
|
|
_find_dev="$1"
|
|
if ! [[ "$_find_dev" = /dev* ]]; then
|
|
[[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev"
|
|
fi
|
|
|
|
if [[ $use_fstab != yes ]]; then
|
|
findmnt -e -v -n -o 'OPTIONS' --source "$_find_dev" 2>/dev/null && return 0
|
|
fi
|
|
|
|
findmnt --fstab -e -v -n -o 'OPTIONS' --source "$_find_dev"
|
|
}
|
|
|
|
|
|
# finds the major:minor of the block device backing the root filesystem.
|
|
find_root_block_device() { find_block_device /; }
|
|
|
|
# for_each_host_dev_fs <func>
|
|
# Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found
|
|
# in ${host_fs_types[@]}
|
|
for_each_host_dev_fs()
|
|
{
|
|
local _func="$1"
|
|
local _dev
|
|
local _ret=1
|
|
|
|
[[ "${#host_fs_types[@]}" ]] || return 2
|
|
|
|
|
|
for _dev in "${!host_fs_types[@]}"; do
|
|
$_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0
|
|
done
|
|
return $_ret
|
|
}
|
|
|
|
host_fs_all()
|
|
{
|
|
printf "%s\n" "${host_fs_types[@]}"
|
|
}
|
|
|
|
# Walk all the slave relationships for a given block device.
|
|
# Stop when our helper function returns success
|
|
# $1 = function to call on every found block device
|
|
# $2 = block device in major:minor format
|
|
check_block_and_slaves() {
|
|
local _x
|
|
[[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
|
|
if ! lvm_internal_dev $2; then "$1" $2 && return; fi
|
|
check_vol_slaves "$@" && return 0
|
|
if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then
|
|
check_block_and_slaves $1 $(<"/sys/dev/block/$2/../dev") && return 0
|
|
fi
|
|
[[ -d /sys/dev/block/$2/slaves ]] || return 1
|
|
for _x in /sys/dev/block/$2/slaves/*; do
|
|
[[ -f $_x/dev ]] || continue
|
|
[[ $_x/subsystem -ef /sys/class/block ]] || continue
|
|
check_block_and_slaves $1 $(<"$_x/dev") && return 0
|
|
done
|
|
return 1
|
|
}
|
|
|
|
check_block_and_slaves_all() {
|
|
local _x _ret=1
|
|
[[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
|
|
if ! lvm_internal_dev $2 && "$1" $2; then
|
|
_ret=0
|
|
fi
|
|
check_vol_slaves_all "$@" && return 0
|
|
if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then
|
|
check_block_and_slaves_all $1 $(<"/sys/dev/block/$2/../dev") && _ret=0
|
|
fi
|
|
[[ -d /sys/dev/block/$2/slaves ]] || return 1
|
|
for _x in /sys/dev/block/$2/slaves/*; do
|
|
[[ -f $_x/dev ]] || continue
|
|
[[ $_x/subsystem -ef /sys/class/block ]] || continue
|
|
check_block_and_slaves_all $1 $(<"$_x/dev") && _ret=0
|
|
done
|
|
return $_ret
|
|
}
|
|
# for_each_host_dev_and_slaves <func>
|
|
# Execute "<func> <dev>" for every "<dev>" found
|
|
# in ${host_devs[@]} and their slaves
|
|
for_each_host_dev_and_slaves_all()
|
|
{
|
|
local _func="$1"
|
|
local _dev
|
|
local _ret=1
|
|
|
|
[[ "${host_devs[@]}" ]] || return 2
|
|
|
|
for _dev in "${host_devs[@]}"; do
|
|
[[ -b "$_dev" ]] || continue
|
|
if check_block_and_slaves_all $_func $(get_maj_min $_dev); then
|
|
_ret=0
|
|
fi
|
|
done
|
|
return $_ret
|
|
}
|
|
|
|
for_each_host_dev_and_slaves()
|
|
{
|
|
local _func="$1"
|
|
local _dev
|
|
|
|
[[ "${host_devs[@]}" ]] || return 2
|
|
|
|
for _dev in "${host_devs[@]}"; do
|
|
[[ -b "$_dev" ]] || continue
|
|
check_block_and_slaves $_func $(get_maj_min $_dev) && return 0
|
|
done
|
|
return 1
|
|
}
|
|
|
|
# ugly workaround for the lvm design
|
|
# There is no volume group device,
|
|
# so, there are no slave devices for volume groups.
|
|
# Logical volumes only have the slave devices they really live on,
|
|
# but you cannot create the logical volume without the volume group.
|
|
# And the volume group might be bigger than the devices the LV needs.
|
|
check_vol_slaves() {
|
|
local _lv _vg _pv _dm _majmin
|
|
_majmin="$2"
|
|
_lv="/dev/block/$_majmin"
|
|
_dm=/sys/dev/block/$_majmin/dm
|
|
[[ -f $_dm/uuid && $(<$_dm/uuid) =~ LVM-* ]] || return 1
|
|
_vg=$(dmsetup splitname --noheadings -o vg_name $(<"$_dm/name") )
|
|
# strip space
|
|
_vg="${_vg//[[:space:]]/}"
|
|
if [[ $_vg ]]; then
|
|
for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null)
|
|
do
|
|
check_block_and_slaves $1 $(get_maj_min $_pv) && return 0
|
|
done
|
|
fi
|
|
return 1
|
|
}
|
|
|
|
check_vol_slaves_all() {
|
|
local _lv _vg _pv _majmin
|
|
_majmin="$2"
|
|
_lv="/dev/block/$_majmin"
|
|
_dm="/sys/dev/block/$_majmin/dm"
|
|
[[ -f $_dm/uuid && $(<$_dm/uuid) =~ LVM-* ]] || return 1
|
|
_vg=$(dmsetup splitname --noheadings -o vg_name $(<"$_dm/name") )
|
|
# strip space
|
|
_vg="${_vg//[[:space:]]/}"
|
|
if [[ $_vg ]]; then
|
|
# when filter/global_filter is set, lvm may be failed
|
|
lvm lvs --noheadings -o vg_name $_vg 2>/dev/null 1>/dev/null
|
|
if [ $? -ne 0 ]; then
|
|
return 1
|
|
fi
|
|
|
|
for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null)
|
|
do
|
|
check_block_and_slaves_all $1 $(get_maj_min $_pv)
|
|
done
|
|
return 0
|
|
fi
|
|
return 1
|
|
}
|
|
|
|
|
|
|
|
# fs_get_option <filesystem options> <search for option>
|
|
# search for a specific option in a bunch of filesystem options
|
|
# and return the value
|
|
fs_get_option() {
|
|
local _fsopts=$1
|
|
local _option=$2
|
|
local OLDIFS="$IFS"
|
|
IFS=,
|
|
set -- $_fsopts
|
|
IFS="$OLDIFS"
|
|
while [ $# -gt 0 ]; do
|
|
case $1 in
|
|
$_option=*)
|
|
echo ${1#${_option}=}
|
|
break
|
|
esac
|
|
shift
|
|
done
|
|
}
|
|
|
|
check_kernel_config()
|
|
{
|
|
local _config_opt="$1"
|
|
local _config_file
|
|
[[ -f $dracutsysrootdir/boot/config-$kernel ]] \
|
|
&& _config_file="/boot/config-$kernel"
|
|
[[ -f $dracutsysrootdir/lib/modules/$kernel/config ]] \
|
|
&& _config_file="/lib/modules/$kernel/config"
|
|
|
|
# no kernel config file, so return true
|
|
[[ $_config_file ]] || return 0
|
|
|
|
grep -q -F "${_config_opt}=" "$_config_file" && return 0
|
|
return 1
|
|
}
|
|
|
|
|
|
# get_cpu_vendor
|
|
# Only two values are returned: AMD or Intel
|
|
get_cpu_vendor ()
|
|
{
|
|
if grep -qE AMD /proc/cpuinfo; then
|
|
printf "AMD"
|
|
fi
|
|
if grep -qE Intel /proc/cpuinfo; then
|
|
printf "Intel"
|
|
fi
|
|
}
|
|
|
|
# get_host_ucode
|
|
# Get the hosts' ucode file based on the /proc/cpuinfo
|
|
get_ucode_file ()
|
|
{
|
|
local family=`grep -E "cpu family" /proc/cpuinfo | head -1 | sed s/.*:\ //`
|
|
local model=`grep -E "model" /proc/cpuinfo |grep -v name | head -1 | sed s/.*:\ //`
|
|
local stepping=`grep -E "stepping" /proc/cpuinfo | head -1 | sed s/.*:\ //`
|
|
|
|
if [[ "$(get_cpu_vendor)" == "AMD" ]]; then
|
|
if [[ $family -ge 21 ]]; then
|
|
printf "microcode_amd_fam%xh.bin" $family
|
|
else
|
|
printf "microcode_amd.bin"
|
|
fi
|
|
fi
|
|
if [[ "$(get_cpu_vendor)" == "Intel" ]]; then
|
|
# The /proc/cpuinfo are in decimal.
|
|
printf "%02x-%02x-%02x" ${family} ${model} ${stepping}
|
|
fi
|
|
}
|
|
|
|
# Not every device in /dev/mapper should be examined.
|
|
# If it is an LVM device, touch only devices which have /dev/VG/LV symlink.
|
|
lvm_internal_dev() {
|
|
local dev_dm_dir=/sys/dev/block/$1/dm
|
|
[[ ! -f $dev_dm_dir/uuid || $(<$dev_dm_dir/uuid) != LVM-* ]] && return 1 # Not an LVM device
|
|
local DM_VG_NAME DM_LV_NAME DM_LV_LAYER
|
|
eval $(dmsetup splitname --nameprefixes --noheadings --rows "$(<$dev_dm_dir/name)" 2>/dev/null)
|
|
[[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] || return 0 # Better skip this!
|
|
[[ ${DM_LV_LAYER} ]] || [[ ! -L /dev/${DM_VG_NAME}/${DM_LV_NAME} ]]
|
|
}
|
|
|
|
btrfs_devs() {
|
|
local _mp="$1"
|
|
btrfs device usage "$_mp" \
|
|
| while read _dev _rest; do
|
|
str_starts "$_dev" "/" || continue
|
|
_dev=${_dev%,}
|
|
printf -- "%s\n" "$_dev"
|
|
done
|
|
}
|