From 81c9e224820fa284806690fc64ac39c58e8760a3 Mon Sep 17 00:00:00 2001 From: Harald Hoyer Date: Tue, 25 Feb 2014 12:35:32 +0100 Subject: [PATCH] Add flag to toggle hostonly cmdline storing in the initramfs --hostonly-cmdline: Store kernel command line arguments needed in the initramfs --no-hostonly-cmdline: Do not store kernel command line arguments needed in the initramfs --- dracut.8.asc | 6 +++++ dracut.conf.5.asc | 3 +++ dracut.sh | 27 ++++++++++++++++----- modules.d/90crypt/module-setup.sh | 6 +++-- modules.d/90dmraid/module-setup.sh | 6 +++-- modules.d/90lvm/module-setup.sh | 6 +++-- modules.d/90mdraid/module-setup.sh | 6 +++-- modules.d/95rootfs-block/module-setup.sh | 31 +++++++++++++++--------- 8 files changed, 66 insertions(+), 25 deletions(-) diff --git a/dracut.8.asc b/dracut.8.asc index b2946753..ba125c0d 100644 --- a/dracut.8.asc +++ b/dracut.8.asc @@ -294,6 +294,12 @@ provide a valid _/etc/fstab_. **-N, --no-hostonly**:: Disable Host-Only mode +**--hostonly-cmdline**: + Store kernel command line arguments needed in the initramfs + +**--no-hostonly-cmdline**: + Do not store kernel command line arguments needed in the initramfs + **--persistent-policy** __:: Use __ to address disks and partitions. __ can be any directory name found in /dev/disk. diff --git a/dracut.conf.5.asc b/dracut.conf.5.asc index 5c941188..be62da98 100644 --- a/dracut.conf.5.asc +++ b/dracut.conf.5.asc @@ -76,6 +76,9 @@ Configuration files must have the extension .conf; other extensions are ignored. Host-Only mode: Install only what is needed for booting the local host instead of a generic host and generate host-specific configuration. +*hostonly_cmdline*"__{yes|no}__":: + If set, store the kernel command line arguments needed in the initramfs + *persistent_policy=*"____":: Use __ to address disks and partitions. __ can be any directory name found in /dev/disk. diff --git a/dracut.sh b/dracut.sh index c4bf4ebc..1c5e6889 100755 --- a/dracut.sh +++ b/dracut.sh @@ -136,6 +136,10 @@ Creates initial ramdisk images for preloading modules -H, --hostonly Host-Only mode: Install only what is needed for booting the local host instead of a generic host. -N, --no-hostonly Disables Host-Only mode + --hostonly-cmdline Store kernel command line arguments needed + in the initramfs + --no-hostonly-cmdline Do not store kernel command line arguments needed + in the initramfs --persistent-policy [POLICY] Use [POLICY] to address disks and partitions. POLICY can be any directory name found in /dev/disk. @@ -376,7 +380,8 @@ while :; do -a|--add) push add_dracutmodules_l "$2"; shift;; --force-add) push force_add_dracutmodules_l "$2"; shift;; --add-drivers) push add_drivers_l "$2"; shift;; - --omit-drivers) push omit_drivers_l "$2"; shift;; + --omit-drivers) + push omit_drivers_l "$2"; shift;; -m|--modules) push dracutmodules_l "$2"; shift;; -o|--omit) push omit_dracutmodules_l "$2"; shift;; -d|--drivers) push drivers_l "$2"; shift;; @@ -389,7 +394,8 @@ while :; do --mount) push fstab_lines "$2"; shift;; --add-device|--device) push add_device_l "$2"; shift;; - --kernel-cmdline) push kernel_cmdline_l "$2"; shift;; + --kernel-cmdline) + push kernel_cmdline_l "$2"; shift;; --nofscks) nofscks_l="yes";; --ro-mnt) ro_mnt_l="yes";; -k|--kmoddir) drivers_dir_l="$2"; shift;; @@ -402,9 +408,12 @@ while :; do -f|--force) force=yes;; --kernel-only) kernel_only="yes"; no_kernel="no";; --no-kernel) kernel_only="no"; no_kernel="yes";; - --print-cmdline) print_cmdline="yes"; hostonly_l="yes"; kernel_only="yes"; no_kernel="yes";; - --early-microcode) early_microcode_l="yes";; - --no-early-microcode) early_microcode_l="no";; + --print-cmdline) + print_cmdline="yes"; hostonly_l="yes"; kernel_only="yes"; no_kernel="yes";; + --early-microcode) + early_microcode_l="yes";; + --no-early-microcode) + early_microcode_l="no";; --strip) do_strip_l="yes";; --nostrip) do_strip_l="no";; --prelink) do_prelink_l="yes";; @@ -430,11 +439,16 @@ while :; do hostonly_l="yes" ;; -N|--no-hostonly|--no-host-only) hostonly_l="no" ;; + --hostonly-cmdline) + hostonly_cmdline_l="yes" ;; + --no-hostonly-cmdline) + hostonly_cmdline_l="no" ;; --persistent-policy) persistent_policy_l="$2"; shift;; --fstab) use_fstab_l="yes" ;; -h|--help) long_usage; exit 1 ;; - -i|--include) push include_src "$2" + -i|--include) + push include_src "$2" shift;; --bzip2) compress_l="bzip2";; --lzma) compress_l="lzma";; @@ -677,6 +691,7 @@ stdloglvl=$((stdloglvl + verbosity_mod_l)) [[ $prefix_l ]] && prefix=$prefix_l [[ $prefix = "/" ]] && unset prefix [[ $hostonly_l ]] && hostonly=$hostonly_l +[[ $hostonly_cmdline_l ]] && hostonly_cmdline=$hostonly_cmdline_l [[ $persistent_policy_l ]] && persistent_policy=$persistent_policy_l [[ $use_fstab_l ]] && use_fstab=$use_fstab_l [[ $mdadmconf_l ]] && mdadmconf=$mdadmconf_l diff --git a/modules.d/90crypt/module-setup.sh b/modules.d/90crypt/module-setup.sh index 18583915..267d39d5 100755 --- a/modules.d/90crypt/module-setup.sh +++ b/modules.d/90crypt/module-setup.sh @@ -46,8 +46,10 @@ cmdline() { install() { - cmdline >> "${initdir}/etc/cmdline.d/90crypt.conf" - echo >> "${initdir}/etc/cmdline.d/90crypt.conf" + if [[ $hostonly_cmdline == "yes" ]]; then + cmdline >> "${initdir}/etc/cmdline.d/90crypt.conf" + echo >> "${initdir}/etc/cmdline.d/90crypt.conf" + fi inst_multiple cryptsetup rmdir readlink umount inst_script "$moddir"/cryptroot-ask.sh /sbin/cryptroot-ask diff --git a/modules.d/90dmraid/module-setup.sh b/modules.d/90dmraid/module-setup.sh index 11181cf5..b230cb0e 100755 --- a/modules.d/90dmraid/module-setup.sh +++ b/modules.d/90dmraid/module-setup.sh @@ -61,8 +61,10 @@ cmdline() { install() { local _i - cmdline >> "${initdir}/etc/cmdline.d/90dmraid.conf" - echo >> "${initdir}/etc/cmdline.d/90dmraid.conf" + if [[ $hostonly_cmdline == "yes" ]]; then + cmdline >> "${initdir}/etc/cmdline.d/90dmraid.conf" + echo >> "${initdir}/etc/cmdline.d/90dmraid.conf" + fi inst_multiple dmraid inst_multiple -o kpartx diff --git a/modules.d/90lvm/module-setup.sh b/modules.d/90lvm/module-setup.sh index f0c9b964..1c962d54 100755 --- a/modules.d/90lvm/module-setup.sh +++ b/modules.d/90lvm/module-setup.sh @@ -48,8 +48,10 @@ install() { inst lvm - cmdline >> "${initdir}/etc/cmdline.d/90lvm.conf" - echo >> "${initdir}/etc/cmdline.d/90lvm.conf" + if [[ $hostonly_cmdline == "yes" ]]; then + cmdline >> "${initdir}/etc/cmdline.d/90lvm.conf" + echo >> "${initdir}/etc/cmdline.d/90lvm.conf" + fi inst_rules "$moddir/64-lvm.rules" diff --git a/modules.d/90mdraid/module-setup.sh b/modules.d/90mdraid/module-setup.sh index 34aae1e3..1e03847f 100755 --- a/modules.d/90mdraid/module-setup.sh +++ b/modules.d/90mdraid/module-setup.sh @@ -65,8 +65,10 @@ install() { inst $(command -v partx) /sbin/partx inst $(command -v mdadm) /sbin/mdadm - cmdline >> "${initdir}/etc/cmdline.d/90mdraid.conf" - echo >> "${initdir}/etc/cmdline.d/90mdraid.conf" + if [[ $hostonly_cmdline == "yes" ]]; then + cmdline >> "${initdir}/etc/cmdline.d/90mdraid.conf" + echo >> "${initdir}/etc/cmdline.d/90mdraid.conf" + fi # > "${initdir}/etc/cmdline.d/95root-journaldev.conf" + printf " root.journaldev=%s" "$journaldev" fi done fi + return 0 +} + +cmdline() { + local dev=/dev/block/$(find_root_block_device) + if [ -e $dev ]; then + printf " root=%s" "$(shorten_persistent_dev "$(get_persistent_dev "$dev")")" + printf " rootflags=%s" "$(find_mp_fsopts /)" + printf " rootfstype=%s" "$(find_mp_fstype /)" + fi + cmdline_journal +} + +install() { + if [[ $hostonly_cmdline == "yes" ]]; then + journaldev=$(cmdline_journal) + [[ $journaldev ]] && printf "%s\n" "$journaldev" >> "${initdir}/etc/cmdline.d/95root-journaldev.conf" + fi inst_multiple umount inst_multiple tr