Merge pull request #68 from dracut-mailing-devs/1431698021-16626-3-git-send-email-colin@mageia.org

dracut: Make host only mode more resilient to missing swaps.
This patch set allows swap devices to disappear without cocking up a
host-only initramfs boot.

dracut.sh

@@ -1224,7 +1224,9 @@ if [[ $hostonly ]]; then
                     done < /etc/crypttab
                 fi
 
-                push_host_devs "$(readlink -f "$dev")"
+                _dev="$(readlink -f "$dev")"
+                push_host_devs "$_dev"
+                push swap_devs "$_dev"
                 break
             done < /etc/fstab
         done < /proc/swaps
@@ -1335,7 +1337,7 @@ export initdir dracutbasedir \
     omit_drivers mdadmconf lvmconf root_dev \
     use_fstab fstab_lines libdirs fscks nofscks ro_mnt \
     stdloglvl sysloglvl fileloglvl kmsgloglvl logfile \
-    debug host_fs_types host_devs sshkey add_fstab \
+    debug host_fs_types host_devs swap_devs sshkey add_fstab \
     DRACUT_VERSION udevdir prefix filesystems drivers \
     systemdutildir systemdsystemunitdir systemdsystemconfdir \
     host_modalias host_modules hostonly_cmdline loginstall \

modules.d/95resume/parse-resume.sh

@@ -37,6 +37,8 @@ esac
 
 if ! getarg noresume; then
     if [ -n "$resume" ]; then
+        wait_for_dev /dev/resume
+
         {
             printf "KERNEL==\"%s\", ACTION==\"add|change\", SYMLINK+=\"resume\"\n" \
                 ${resume#/dev/};
@@ -65,7 +67,7 @@ if ! getarg noresume; then
             printf -- '%s\n' ' RUN+="/sbin/initqueue --finished --unique --name 00resume echo %M:%m  > /sys/power/resume"'
         } >> /etc/udev/rules.d/99-resume.rules
 
-        printf '[ -e "%s" ] && { ln -s "%s" /dev/resume; rm -f -- "$job" "%s/initqueue/timeout/resume.sh"; }\n' \
+        printf '[ -e "%s" ] && { ln -s "%s" /dev/resume 2> /dev/null; rm -f -- "$job" "%s/initqueue/timeout/resume.sh"; }\n' \
             "$resume" "$resume" "$hookdir" >> $hookdir/initqueue/settled/resume.sh
 
         {

modules.d/99base/module-setup.sh

@@ -103,6 +103,14 @@ install() {
 
                 for _dev in ${host_devs[@]}; do
                     [[ "$_dev" == "$root_dev" ]] && continue
+
+                    # We only actually wait for real devs - swap is only needed
+                    # for resume and udev rules generated when parsing resume=
+                    # argument take care of the waiting for us
+                    for _dev2 in ${swap_devs[@]}; do
+                      [[ "$_dev" == "$_dev2" ]] && continue 2
+                    done
+
                     _pdev=$(get_persistent_dev $_dev)
 
                     case "$_pdev" in