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From 589b4e61e2db2a5835b5aa425268f6f0f67c14e4 Mon Sep 17 00:00:00 2001
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From: Colin Guthrie <colin@mageia.org>
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Date: Fri, 15 May 2015 14:53:40 +0100
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Subject: [PATCH] base: Don't wait for swap devices in host-only mode.
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The only reason we add swap devices to host-only mode (added in
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dd5875499ece9dbc90e10eafd0073ee15d0c86a4) is to allow us to process
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resume= arguments passed on the kernel command line when the swap
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partition lives on something slightly more complex than a normal
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partion (e.g. in an LVM or RAID setup).
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By adding the device to host_devs, the necessary LVM and RAID hooks
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are added and thus the underlying storage will be initialised OK, and
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the 95resume module handles the waiting for the device (via udev rules
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creating the /dev/resume symlink).
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So ultimately, we do not need to hard-code the waiting for the swap
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devices into the initramfs at build time as the waiting part can be
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dynamic.
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This makes things more resiliant to swap partitions disappearing and
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being reformatted etc.
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Inspired by a patch by Martin Whitaker on Mageia bug:
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https://bugs.mageia.org/show_bug.cgi?id=12305
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(cherry picked from commit 3e3ed34f036a833ccc2150c6224d0a954e841e39)
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---
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dracut.sh | 6 ++++--
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modules.d/99base/module-setup.sh | 8 ++++++++
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2 files changed, 12 insertions(+), 2 deletions(-)
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diff --git a/dracut.sh b/dracut.sh
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index a214f810..90ac1fe9 100755
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--- a/dracut.sh
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+++ b/dracut.sh
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@@ -1056,7 +1056,9 @@ if [[ $hostonly ]]; then
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done < /etc/crypttab
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fi
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- push host_devs "$(readlink -f "$dev")"
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+ _dev="$(readlink -f "$dev")"
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+ push host_devs "$_dev"
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+ push swap_devs "$_dev"
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break
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done < /etc/fstab
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done < /proc/swaps
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@@ -1181,7 +1183,7 @@ export initdir dracutbasedir \
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omit_drivers mdadmconf lvmconf root_dev \
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use_fstab fstab_lines libdirs fscks nofscks ro_mnt \
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stdloglvl sysloglvl fileloglvl kmsgloglvl logfile \
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- debug host_fs_types host_devs sshkey add_fstab \
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+ debug host_fs_types host_devs swap_devs sshkey add_fstab \
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DRACUT_VERSION udevdir prefix filesystems drivers \
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systemdutildir systemdsystemunitdir systemdsystemconfdir \
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host_modalias host_modules hostonly_cmdline loginstall \
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diff --git a/modules.d/99base/module-setup.sh b/modules.d/99base/module-setup.sh
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index fddf4b06..d5e78613 100755
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--- a/modules.d/99base/module-setup.sh
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+++ b/modules.d/99base/module-setup.sh
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@@ -104,6 +104,14 @@ install() {
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for _dev in ${host_devs[@]}; do
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[[ "$_dev" == "$root_dev" ]] && continue
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+
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+ # We only actually wait for real devs - swap is only needed
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+ # for resume and udev rules generated when parsing resume=
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+ # argument take care of the waiting for us
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+ for _dev2 in ${swap_devs[@]}; do
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+ [[ "$_dev" == "$_dev2" ]] && continue 2
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+ done
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+
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_pdev=$(get_persistent_dev $_dev)
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case "$_pdev" in
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