diff options
| -rw-r--r-- | README | 3 | ||||
| -rw-r--r-- | archiso/Makefile | 6 | ||||
| -rw-r--r-- | archiso/archiso_shutdown | 43 | ||||
| -rw-r--r-- | archiso/hooks/archiso_shutdown | 22 | ||||
| -rw-r--r-- | archiso/install/archiso_shutdown | 13 | ||||
| -rwxr-xr-x | configs/releng/build.sh | 3 | ||||
| -rw-r--r-- | configs/releng/mkinitcpio.conf | 2 |
7 files changed, 89 insertions, 3 deletions
@@ -121,7 +121,8 @@ if nothing is specified on command line. * archiso_pxe_nbd + mkinitcpio-nfs-utils for ipconfig + nbd for nbd-client - +* archiso_shutdown + + (none) *** Image types generated by mkarchiso. diff --git a/archiso/Makefile b/archiso/Makefile index 4e8291e..aa137b8 100644 --- a/archiso/Makefile +++ b/archiso/Makefile @@ -12,6 +12,9 @@ install-hooks: # hooks/install are needed by mkinitcpio install -D -m 644 hooks/archiso $(DESTDIR)/lib/initcpio/hooks/archiso install -D -m 644 install/archiso $(DESTDIR)/lib/initcpio/install/archiso + install -D -m 755 archiso_shutdown $(DESTDIR)/lib/initcpio/archiso_shutdown + install -D -m 644 hooks/archiso_shutdown $(DESTDIR)/lib/initcpio/hooks/archiso_shutdown + install -D -m 644 install/archiso_shutdown $(DESTDIR)/lib/initcpio/install/archiso_shutdown install -D -m 644 archiso_pxe_nbd $(DESTDIR)/lib/initcpio/archiso_pxe_nbd install -D -m 644 hooks/archiso_pxe_nbd $(DESTDIR)/lib/initcpio/hooks/archiso_pxe_nbd install -D -m 644 install/archiso_pxe_nbd $(DESTDIR)/lib/initcpio/install/archiso_pxe_nbd @@ -32,6 +35,9 @@ uninstall: rm -f $(DESTDIR)/usr/bin/testiso rm -f $(DESTDIR)/lib/initcpio/hooks/archiso rm -f $(DESTDIR)/lib/initcpio/install/archiso + rm -f $(DESTDIR)/lib/initcpio/archiso_shutdown + rm -f $(DESTDIR)/lib/initcpio/hooks/archiso_shutdown + rm -f $(DESTDIR)/lib/initcpio/install/archiso_shutdown rm -f $(DESTDIR)/lib/initcpio/archiso_pxe_nbd rm -f $(DESTDIR)/lib/initcpio/hooks/archiso_pxe_nbd rm -f $(DESTDIR)/lib/initcpio/install/archiso_pxe_nbd diff --git a/archiso/archiso_shutdown b/archiso/archiso_shutdown new file mode 100644 index 0000000..de1197e --- /dev/null +++ b/archiso/archiso_shutdown @@ -0,0 +1,43 @@ +#!/bin/sh + +# /oldroot depends on things inside /oldroot/run/archiso... +mkdir /oldrun +mount --move /oldroot/run /oldrun + +# Unmount all mounts now. +umount $(mount | awk '$3 ~/^\/oldroot/ {print $3}' | sort -r) + +# Remove all dm-snapshot devices. +dmsetup remove_all + +# Remove all loopback devices made for dm-snapshots devices +# other misc loops like used for pure squashfs images +# and unmount/detach *.fs.sfs images. +for _lup in $(ls -r /dev/loop[1-9][0-9][0-9]); do + if ! losetup -d ${_lup} 2> /dev/null; then + umount -d ${_lup} + fi +done + +# Unmount the space used to store *.cow. +umount /oldrun/archiso/cowspace + +# Unmount boot device if needed (no copytoram=y used) +if [[ ! -d /oldrun/archiso/copytoram ]]; then + umount /oldrun/archiso/bootmnt + # Detach img_loop= and unmount img_dev= (archiso_loop_mnt hook) + if [[ -f /oldrun/archiso/img_dev_loop ]]; then + losetup -d $(cat /oldrun/archiso/img_dev_loop) + umount /oldrun/archiso/img_dev + fi + if [[ -f /oldrun/archiso/nbd_client.pid ]]; then + nbd-client -d /dev/nbd0 + fi +fi + +# reboot / poweroff / halt, depending on the argument passed by init +# if something invalid is passed, we halt +case "$1" in + reboot|poweroff|halt) "$1" -f ;; + *) halt -f;; +esac diff --git a/archiso/hooks/archiso_shutdown b/archiso/hooks/archiso_shutdown new file mode 100644 index 0000000..1cc6e0e --- /dev/null +++ b/archiso/hooks/archiso_shutdown @@ -0,0 +1,22 @@ +run_hook () +{ + msg -n ":: Creating shutdown ramfs..." + + mkdir -p /run/initramfs/usr/bin + mkdir /run/initramfs/usr/sbin + mkdir /run/initramfs/bin + mkdir /run/initramfs/sbin + mkdir /run/initramfs/lib + cp /bin/busybox /run/initramfs/bin/ + cp /lib/ld-* /run/initramfs/lib/ + cp /lib/lib* /run/initramfs/lib/ + cp /sbin/dmsetup /run/initramfs/sbin/ + if [[ -x /bin/nbd-client ]]; then + cp /bin/nbd-client /run/initramfs/bin/ + fi + + chroot /run/initramfs /bin/busybox --install + cp /shutdown /run/initramfs/ + + msg "done." +} diff --git a/archiso/install/archiso_shutdown b/archiso/install/archiso_shutdown new file mode 100644 index 0000000..49dfc8c --- /dev/null +++ b/archiso/install/archiso_shutdown @@ -0,0 +1,13 @@ +build() { + SCRIPT="archiso_shutdown" + add_binary /lib/initcpio/archiso_shutdown /shutdown +} + +help () { + cat <<HELPEOF +This hook will create a shutdown initramfs in /run/initramfs +that we can pivot to on shutdown in order to unmount / and +and others mount points, dm-snapshot devices and loopback devices. +Mostly usefull for dm-snapshot persistent. +HELPEOF +} diff --git a/configs/releng/build.sh b/configs/releng/build.sh index cdbbfa0..ba5cd2a 100755 --- a/configs/releng/build.sh +++ b/configs/releng/build.sh @@ -43,10 +43,11 @@ make_customize_root_image() { make_setup_mkinitcpio() { if [[ ! -e ${work_dir}/build.${FUNCNAME} ]]; then local _hook - for _hook in archiso archiso_pxe_nbd archiso_loop_mnt; do + for _hook in archiso archiso_shutdown archiso_pxe_nbd archiso_loop_mnt; do cp /lib/initcpio/hooks/${_hook} ${work_dir}/root-image/lib/initcpio/hooks cp /lib/initcpio/install/${_hook} ${work_dir}/root-image/lib/initcpio/install done + cp /lib/initcpio/archiso_shutdown ${work_dir}/root-image/lib/initcpio cp /lib/initcpio/archiso_pxe_nbd ${work_dir}/root-image/lib/initcpio : > ${work_dir}/build.${FUNCNAME} fi diff --git a/configs/releng/mkinitcpio.conf b/configs/releng/mkinitcpio.conf index df833eb..f6b846c 100644 --- a/configs/releng/mkinitcpio.conf +++ b/configs/releng/mkinitcpio.conf @@ -1,2 +1,2 @@ -HOOKS="base udev memdisk archiso archiso_pxe_nbd archiso_loop_mnt pata scsi sata usb fw pcmcia filesystems usbinput" +HOOKS="base udev memdisk archiso_shutdown archiso archiso_pxe_nbd archiso_loop_mnt pata scsi sata usb fw pcmcia filesystems usbinput" COMPRESSION="xz" |