138 lines
3.4 KiB
Bash
Executable File
138 lines
3.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# If the pygrub flag is set, this script will install the necessary
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# packages to boot the VM from the dom0 via pygrub. This script installs
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# the kernel and modules and generates a grub menu.lst in the newly
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# created maschine.
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#
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# Dmitry Nedospasov
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# --
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# http://nedos.net
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prefix=$1
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#
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# Source our common functions
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#
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if [ -e /usr/lib/xen-tools/common.sh ]; then
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. /usr/lib/xen-tools/common.sh
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else
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. ./hooks/common.sh
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fi
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if [ "${pygrub}" ]; then
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#
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# Log our start
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#
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logMessage Script $0 starting
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#
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# Resolve the correct architecutre
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#
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if [ "${arch}" = "i386" ]; then
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XEN_ARCH="686"
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elif [ "${arch}" = "amd64" ]; then
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XEN_ARCH="amd64"
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elif [ -z "${arch}" ]; then
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UNAME_ARCH=`uname -m`
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if [ "${UNAME_ARCH}" = "i686" ]; then
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XEN_ARCH="686"
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elif [ "${UNAME_ARCH}" = "x86_64" ]; then
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XEN_ARCH="amd64"
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else
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logMessage Unknown kernel architecture ${UNAME_ARCH}.
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logMessage Please report this as bug to xen-tools-dev@xen-tools.org.
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logMessage Script $0 failed
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exit 1
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fi
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else
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logMessage Unknown kernel architecture ${arch}
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logMessage Script $0 failed
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exit 1
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fi
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#
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# Attempt to install a xen kernel, if that fails, then install a normal one
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#
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KERNEL_XEN_PKG="linux-image-xen-$XEN_ARCH"
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KERNEL_PKG="linux-image-$XEN_ARCH"
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logMessage Attempting to install the $KERNEL_XEN_PKG kernel image
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if chroot ${prefix} /usr/bin/apt-cache show $KERNEL_XEN_PKG > /dev/null 2>&1; then
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logMessage Package $KERNEL_XEN_PKG is available - installing
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installDebianPackage ${prefix} initramfs-tools
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installDebianPackage ${prefix} $KERNEL_XEN_PKG
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else
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logMessage Package $KERNEL_XEN_PKG is not available
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logMessage Attempting to install the $KERNEL_PKG kernel image
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logMessage WARNING: This kernel may not have pvops
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if chroot ${prefix} /usr/bin/apt-cache show $KERNEL_PKG > /dev/null 2>&1; then
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logMessage Package $KERNEL_PKG is available - installing
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installDebianPackage ${prefix} initramfs-tools
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installDebianPackage ${prefix} $KERNEL_PKG
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else
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logMessage Package $KERNEL_PKG is not available
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logMessage pygrub set, but kernel could not be installed
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logMessage Script $0 failed
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exit 1
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fi
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fi
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DOMU_KERNEL=$(basename $(ls -1 ${prefix}/boot/vmlinuz* | tail -n 1))
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KERNEL_REV=$(echo $DOMU_KERNEL | sed "s/vmlinuz-//g")
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DOMU_RAMDISK="initrd.img-$KERNEL_REV"
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DOMU_ISSUE=$(sed -re "s/ *\\\.*//g" -e1q < ${prefix}/etc/issue)
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#
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# Generate initrd if it does not exist
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#
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if [ -f ${prefix}/boot/$DOMU_RAMDISK ]; then
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logMessage initrd exists, skipping generation
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else
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logMessage initrd missing, generating
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chroot ${prefix} update-initramfs -c -k $KERNEL_REV
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fi
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#
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# Generate a menu.lst for pygrub
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#
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mkdir -p ${prefix}/boot/grub
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cat << E_O_MENU > ${prefix}/boot/grub/menu.lst
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default 0
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timeout 2
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title $DOMU_ISSUE
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root (hd0,0)
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kernel /boot/$DOMU_KERNEL root=/dev/xvda2 ro elevator=noop
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initrd /boot/$DOMU_RAMDISK
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title $DOMU_ISSUE (Single-User)
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root (hd0,0)
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kernel /boot/$DOMU_KERNEL root=/dev/xvda2 ro single elevator=noop
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initrd /boot/$DOMU_RAMDISK
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E_O_MENU
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#
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# Install the module-init-tools package.
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#
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installDebianPackage ${prefix} module-init-tools
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else
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logMessage pygrub not set, skipping kernel install
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fi # if pygrub
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#
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# Log our finish
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#
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logMessage Script $0 finished
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