keep network device naming scheme on upgrade

[thirdparty/dracut.git] / dracut-functions.sh

diff --git a/dracut-functions.sh b/dracut-functions.sh
index 0c78cf0dc8893a32a39793a5983cf51ebf25ea38..3cb9c7afd410f7173dfe85574e44092bae58e45c 100755 (executable)
--- a/dracut-functions.sh
+++ b/dracut-functions.sh
@@ -40,19 +40,43 @@ 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() {
-    if [[ -z ${1##/*} ]]; then
-        if [[ -x $1 ]] || { [[ "$1" == *.so* ]] && ldd "$1" &>/dev/null; };  then
+    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()
 {
-    ldconfig -pN 2>/dev/null | grep -E -v '/(lib|lib64|usr/lib|usr/lib64)/[^/]*$' | sed -n 's,.* => \(.*\)/.*,\1,p' | sort | uniq
+    $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.
@@ -174,9 +198,6 @@ convert_abs_rel() {
 # $ get_fs_env /dev/sda2
 # ext4
 get_fs_env() {
-    local evalstr
-    local found
-
     [[ $1 ]] || return
     unset ID_FS_TYPE
     ID_FS_TYPE=$(blkid -u filesystem -o export -- "$1" \
@@ -199,7 +220,7 @@ get_fs_env() {
 # $ get_maj_min /dev/sda2
 # 8:2
 get_maj_min() {
-    local _maj _min _majmin
+    local _majmin
     _majmin="$(stat -L -c '%t:%T' "$1" 2>/dev/null)"
     printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))"
 }
@@ -497,13 +518,14 @@ check_block_and_slaves() {
     [[ -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 ]]; then
+    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/*/dev; do
-        [[ -f $_x ]] || continue
-        check_block_and_slaves $1 $(<"$_x") && return 0
+    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
 }
@@ -515,13 +537,14 @@ check_block_and_slaves_all() {
         _ret=0
     fi
     check_vol_slaves_all "$@" && return 0
-    if [[ -f /sys/dev/block/$2/../dev ]]; then
+    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/*/dev; do
-        [[ -f $_x ]] || continue
-        check_block_and_slaves_all $1 $(<"$_x") && _ret=0
+    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 $_ret
 }
@@ -593,6 +616,12 @@ check_vol_slaves_all() {
     # strip space
     _vg="${_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)
@@ -628,9 +657,9 @@ check_kernel_config()
 {
     local _config_opt="$1"
     local _config_file
-    [[ -f /boot/config-$kernel ]] \
+    [[ -f $dracutsysrootdir/boot/config-$kernel ]] \
         && _config_file="/boot/config-$kernel"
-    [[ -f /lib/modules/$kernel/config ]] \
+    [[ -f $dracutsysrootdir/lib/modules/$kernel/config ]] \
         && _config_file="/lib/modules/$kernel/config"
 
     # no kernel config file, so return true