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100 lines
2.5 KiB
100 lines
2.5 KiB
#!/bin/bash
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set -x
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set -e
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grubonly=0 # for testing
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if ! [ -r /etc/grml_cd ] ; then
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echo "Not running inside Grml, exiting to avoid damage." >&2
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exit 1
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fi
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if stat --help >/dev/null 2>&1; then
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getfilesize='stat -c %s' # GNU stat
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else
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getfilesize='stat -f %z' # BSD stat
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fi
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# FIXME - integrate in vmdebootstrap
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wget grml.org/sipwise/bootgrub.mksh
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# FIXME - don't depend on it
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if ! [ -d /mnt/sda1/lost+found ] ; then
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mount /dev/sda1 /mnt/sda1
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fi
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# FIXME - integrate in deployment ISO
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apt-get update ; apt-get -y install kpartx qemu-utils grub-pc mksh
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IMAGE=/mnt/sda1/qemu.img
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TMPDIR=$(mktemp -d) || exit 1
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# problem: 1.99~rc1 results in "error: no such argument" -> core.img from VM?
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grub-mkimage -O i386-pc -p '(hd0,msdos1)/boot/grub' -o "$TMPDIR/core.img" \
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biosdisk part_msdos ext2
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ifirst=4
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ilast=$(($($getfilesize "$TMPDIR/core.img")/512+ifirst))
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qemu-img create -f raw "${IMAGE}" 3G
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echo 4 63 | mksh bootgrub.mksh -A | dd of="$IMAGE" conv=notrunc
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dd if="$TMPDIR/core.img" of="$IMAGE" conv=notrunc seek=$ifirst
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rm -f "$TMPDIR/core.img"
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dd if=/dev/zero bs=1 conv=notrunc count=64 seek=446 of="$IMAGE"
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parted -s "${IMAGE}" 'mkpart primary ext3 2M -1'
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DEVINFO=$(kpartx -av $IMAGE) # 'add map loop1p1 (253:0): 0 6289408 linear /dev/loop1 2048'
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if [ -z "$DEVINFO" ] ; then
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echo Error setting up loopback device >&2
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exit 1
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fi
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LOOP=$(echo ${DEVINFO} | sed 's/.* linear //; s/ [[:digit:]]*//') # '/dev/loop1'
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BLOCKDEV=$(echo "${DEVINFO}" | sed -e 's/.* (\(.*:.*\)).*/\1/') # '253:0'
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LOOP_PART="$(echo ${DEVINFO##add map } | sed 's/ .*//')" # '/dev/loop1p1'
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TARGET="/dev/mapper/$LOOP_PART" # '/dev/mapper/loop1p1'
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echo "Debug:
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DEVINFO=$DEVINFO
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LOOP=$LOOP
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BLOCKDEV=$BLOCKDEV
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LOOP_PART=$LOOP_PART
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TARGET=$TARGET
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"
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blockdev --rereadpt $LOOP
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if test $grubonly = 0; then
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echo FSCK=no >> /etc/debootstrap/config
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echo y | grml-debootstrap --hostname vmbuilder --mirror http://debian.inode.at/debian/ -r squeeze -t "$TARGET" --password foobar
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fi
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kpartx -d $IMAGE
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LOOPDEV=$(losetup -f)
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losetup $LOOPDEV ${IMAGE}
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reread_partition_table $LOOP
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if test $grubonly = 1; then
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mke2fs /dev/$LOOP_PART
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fi
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mount /dev/$LOOP_PART $TMPDIR
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mkdir -p "$TMPDIR/boot/grub"
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cp /usr/lib/grub/i386-pc/* "$TMPDIR/boot/grub/"
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if test $grubonly = 0; then
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grml-chroot $TMPDIR update-grub
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sed -i "s;set root=.*;set root='(hd0,msdos1)';" $TMPDIR/boot/grub/grub.cfg
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# sed 's/insmod ext2/insmod ext2\n insmod part_msdos/' $TMPDIR/boot/grub/grub.cfg
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cat $TMPDIR/boot/grub/grub.cfg > /tmp/grub.cfg
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fi
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umount $TMPDIR
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rmdir $TMPDIR
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losetup -d "$LOOPDEV"
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echo 'done :)'
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# EOF
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