add testsuite for degraded RAID-5 array

test/TEST-12-RAID-DEG/Makefile

@@ -0,0 +1,10 @@
+all:
+	@make -s --no-print-directory -C ../.. all
+	@basedir=../.. testdir=../ ./test.sh --all
+setup:
+	@make --no-print-directory -C ../.. all
+	@basedir=../.. testdir=../ ./test.sh --setup
+clean:
+	@basedir=../.. testdir=../ ./test.sh --clean
+run:
+	@basedir=../.. testdir=../ ./test.sh --run

test/TEST-12-RAID-DEG/create-root.sh

@@ -0,0 +1,36 @@
+#!/bin/sh
+# don't let udev and this script step on eachother's toes
+for x in 63-luks.rules 64-lvm.rules 70-mdadm.rules 99-mount-rules; do
+    > "/etc/udev/rules.d/$x"
+done
+udevadm control --reload-rules
+# save a partition at the beginning for future flagging purposes
+sfdisk -C 640 -H 2 -S 32 -L /dev/sda <<EOF
+,1
+,213
+,213
+,213
+EOF
+mdadm --create /dev/md0 --run --auto=yes --level=5 --raid-devices=3 /dev/sda2 /dev/sda3 /dev/sda4
+# wait for the array to finish initailizing, otherwise this sometimes fails
+# randomly.
+mdadm -W /dev/md0
+echo -n test >keyfile
+cryptsetup -q luksFormat /dev/md0 /keyfile
+echo "The passphrase is test"
+cryptsetup luksOpen /dev/md0 dracut_crypt_test </keyfile && \
+lvm pvcreate -ff  -y /dev/mapper/dracut_crypt_test && \
+lvm vgcreate dracut /dev/mapper/dracut_crypt_test && \
+lvm lvcreate -l 100%FREE -n root dracut && \
+lvm vgchange -ay && \
+mke2fs /dev/dracut/root && \
+mkdir -p /sysroot && \
+mount /dev/dracut/root /sysroot && \
+cp -a -t /sysroot /source/* && \
+umount /sysroot && \
+lvm lvchange -a n /dev/dracut/root && \
+cryptsetup luksClose /dev/mapper/dracut_crypt_test && \
+mdadm /dev/md0 --fail /dev/sda2 --remove /dev/sda2 && \
+echo "dracut-root-block-created" >/dev/sda1
+dd if=/dev/zero of=/dev/sda2
+poweroff -f

test/TEST-12-RAID-DEG/cryptroot-ask

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+[ -b /dev/mapper/$2 ] && exit 0
+echo -n test >/keyfile
+/sbin/cryptsetup luksOpen $1 $2 </keyfile
+

test/TEST-12-RAID-DEG/hard-off.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+getarg rdinitdebug || poweroff -f

test/TEST-12-RAID-DEG/test-init

@@ -0,0 +1,10 @@
+#!/bin/sh
+exec >/dev/console 2>&1
+echo "dracut-root-block-success" >/dev/sda1
+export TERM=linux
+export PS1='initramfs-test:\w\$ '
+[ -f /etc/fstab ] || ln -s /proc/mounts /etc/fstab
+stty sane
+echo "made it to the rootfs! Powering down."
+mount -n -o remount,ro /
+poweroff -f

test/TEST-12-RAID-DEG/test.sh

@@ -0,0 +1,77 @@
+#!/bin/bash
+TEST_DESCRIPTION="root filesystem on an encrypted LVM PV on a degraded RAID-5"
+
+KVERSION=${KVERSION-$(uname -r)}
+
+# Uncomment this to debug failures
+#DEBUGFAIL="rdinitdebug rdnetdebug"
+
+test_run() {
+    $testdir/run-qemu -hda root.ext2 -m 256M -nographic \
+	-net none -kernel /boot/vmlinuz-$KVERSION \
+	-append "root=/dev/dracut/root rw quiet console=ttyS0,115200n81 rdshell $DEBUGFAIL" \
+	-initrd initramfs.testing
+    grep -m 1 -q dracut-root-block-success root.ext2 || return 1
+}
+
+test_setup() {
+    # Create the blank file to use as a root filesystem
+    dd if=/dev/zero of=root.ext2 bs=1M count=20
+
+    kernel=$KVERSION
+    # Create what will eventually be our root filesystem onto an overlay
+    (
+	initdir=overlay/source
+	. $basedir/dracut-functions
+	dracut_install sh df free ls shutdown poweroff stty cat ps ln ip route \
+	    /lib/terminfo/l/linux mount dmesg ifconfig dhclient mkdir cp ping dhclient 
+	inst "$basedir/modules.d/40network/dhclient-script" "/sbin/dhclient-script"
+	inst "$basedir/modules.d/40network/ifup" "/sbin/ifup"
+	dracut_install grep
+	inst ./test-init /sbin/init
+	find_binary plymouth >/dev/null && dracut_install plymouth
+	(cd "$initdir"; mkdir -p dev sys proc etc var/run tmp )
+    )
+ 
+    # second, install the files needed to make the root filesystem
+    (
+	initdir=overlay
+	. $basedir/dracut-functions
+	dracut_install sfdisk mke2fs poweroff cp umount dd
+	inst_simple ./create-root.sh /initqueue/01create-root.sh
+    )
+ 
+    # create an initramfs that will create the target root filesystem.
+    # We do it this way so that we do not risk trashing the host mdraid
+    # devices, volume groups, encrypted partitions, etc.
+    $basedir/dracut -l -i overlay / \
+	-m "dash crypt lvm mdraid udev-rules base rootfs-block kernel-modules" \
+	-d "ata_piix ext2 sd_mod" \
+	-f initramfs.makeroot $KVERSION || return 1
+    rm -rf overlay
+    # Invoke KVM and/or QEMU to actually create the target filesystem.
+    $testdir/run-qemu -hda root.ext2 -m 256M -nographic -net none \
+	-kernel "/boot/vmlinuz-$kernel" \
+	-append "root=/dev/dracut/root rw rootfstype=ext2 quiet console=ttyS0,115200n81" \
+	-initrd initramfs.makeroot  || return 1
+    grep -m 1 -q dracut-root-block-created root.ext2 || return 1
+    (
+	initdir=overlay
+	. $basedir/dracut-functions
+	dracut_install poweroff shutdown
+	inst_simple ./hard-off.sh /emergency/01hard-off.sh
+	inst ./cryptroot-ask /sbin/cryptroot-ask
+    )
+    sudo $basedir/dracut -l -i overlay / \
+	-o "plymouth" \
+	-a "debug" \
+	-d "ata_piix ext2 sd_mod" \
+	-f initramfs.testing $KVERSION || return 1
+}
+
+test_cleanup() {
+    rm -fr overlay mnt
+    rm -f root.ext2 initramfs.makeroot initramfs.testing
+}
+
+. $testdir/test-functions