root / example / instance-image.d / grub @ e84e87cd
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#!/bin/bash |
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# This is an example script that configures, grub after installation. This |
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# script assumes that grub has been installed onto the image already and a |
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# working grub.conf exists. This is only enabled if using the tarball image |
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# type. |
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|
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set -e |
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|
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. common.sh |
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|
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if [ "${DEBUG_LEVEL} " = 1 ] ; then |
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set -x |
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fi |
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|
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CLEANUP=( ) |
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|
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trap cleanup EXIT |
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|
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if [ "${IMAGE_TYPE}" != "tarball" ] ; then |
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echo "Image type not \'tarball\', skipping setting up grub..." |
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exit 0 |
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fi |
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|
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if [ -z "${TARGET}" -o -d "${TARGET}" ] ; then |
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echo "Missing target directory" |
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exit 1 |
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fi |
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|
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# Set disk based on type of hypervisor |
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disk="" |
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if [ "${HYPERVISOR}" = "kvm" ] ; then |
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disk="vda" |
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else |
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disk="xda" |
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fi |
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|
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# make /dev/$disk |
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mknod ${TARGET}/dev/${disk} b $(stat -L -c "0x%t 0x%T" $BLOCKDEV) |
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CLEANUP+=("rm -f ${TARGET}/dev/$disk") |
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|
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# make /dev/${disk}1 |
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mknod ${TARGET}/dev/${disk}1 b $(stat -L -c "0x%t 0x%T" $BOOT_DEV) |
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CLEANUP+=("rm -f ${TARGET}/dev/${disk}1") |
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|
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# make /dev/${disk}1 |
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mknod ${TARGET}/dev/${disk}3 b $(stat -L -c "0x%t 0x%T" $ROOT_DEV) |
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CLEANUP+=("rm -f ${TARGET}/dev/${disk}3") |
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|
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# create device.map |
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cat > "${TARGET}/boot/grub/device.map" <<EOF |
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(hd0) /dev/${disk} |
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EOF |
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|
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# install grub to the block device |
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chroot ${TARGET} grub --batch --no-floppy --device-map=/boot/grub/device.map <<EOF |
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root (hd0,0) |
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setup (hd0) |
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quit |
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EOF |
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|
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# execute cleanups |
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cleanup |
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trap - EXIT |
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|
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exit 0 |