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#!/bin/bash
set_bootloader() {
if [ "x${BOOTLOADER}" == 'xgrub' ]
then
set_grub_bootloader
else
return 0
fi
}
set_grub_bootloader() {
local GRUB_CONF="${BOOTDIR}/grub/grub.conf"
print_info 1 ''
print_info 1 "Adding kernel to ${GRUB_CONF}..."
if [ "${BOOTFS}" != '' ]
then
GRUB_BOOTFS=${BOOTFS}
else
# Extract block device information from /etc/fstab
GRUB_ROOTFS=$(awk 'BEGIN{RS="((#[^\n]*)?\n)"}( $2 == "/" ) { print $1; exit }' /etc/fstab)
GRUB_BOOTFS=$(awk 'BEGIN{RS="((#[^\n]*)?\n)"}( $2 == "'${BOOTDIR}'") { print $1; exit }' /etc/fstab)
# If ${BOOTDIR} is not defined in /etc/fstab, it must be the same as /
[ "x${GRUB_BOOTFS}" == 'x' ] && GRUB_BOOTFS=${GRUB_ROOTFS}
fi
# Read GRUB device map
[ ! -d ${TEMP} ] && mkdir ${TEMP}
grub --batch --device-map=${TEMP}/grub.map <<EOF >/dev/null 2>&1
quit
EOF
# Get the GRUB mapping for our device
local GRUB_BOOT_DISK1=$(echo ${GRUB_BOOTFS} | sed -e 's#\(/dev/.\+\)[[:digit:]]\+#\1#')
local GRUB_BOOT_DISK=$(awk '{if ($2 == "'${GRUB_BOOT_DISK1}'") {gsub(/(\(|\))/, "", $1); print $1;}}' ${TEMP}/grub.map)
local GRUB_BOOT_PARTITION=$(echo ${GRUB_BOOTFS} | sed -e 's#/dev/.\+\([[:digit:]]?*\)#\1#')
[ ! -d ${TEMP} ] && rm -r ${TEMP}
# Create grub configuration directory and file if it doesn't exist.
[ ! -e `dirname ${GRUB_CONF}` ] && mkdir -p `dirname ${GRUB_CONF}`
if [ ! -e ${GRUB_CONF} ]
then
if [ "${GRUB_BOOT_DISK}" != '' -a "${GRUB_BOOT_PARTITION}" != '' ]
then
GRUB_BOOT_PARTITION=`expr ${GRUB_BOOT_PARTITION} - 1`
# grub.conf doesn't exist - create it with standard defaults
touch ${GRUB_CONF}
echo 'default 0' >> ${GRUB_CONF}
echo 'timeout 5' >> ${GRUB_CONF}
echo >> ${GRUB_CONF}
# Add grub configuration to grub.conf
echo "# Genkernel generated entry, see GRUB documentation for details" >> ${GRUB_CONF}
echo "title=Gentoo Linux ($KV)" >> ${GRUB_CONF}
echo -e "\troot (${GRUB_BOOT_DISK},${GRUB_BOOT_PARTITION})" >> ${GRUB_CONF}
if [ "${BUILD_INITRD}" -eq '0' ]
then
echo -e "\tkernel /kernel-${KNAME}-${ARCH}-${KV} root=${GRUB_ROOTFS}" >> ${GRUB_CONF}
else
echo -e "\tkernel /kernel-${KNAME}-${ARCH}-${KV} root=/dev/ram0 init=/linuxrc real_root=${GRUB_ROOTFS}" >> ${GRUB_CONF}
if [ "${PAT}" -gt '4' ]
then
echo -e "\tinitrd /initramfs-${KNAME}-${ARCH}-${KV}" >> ${GRUB_CONF}
fi
fi
echo >> ${GRUB_CONF}
else
print_error 1 "Error! ${BOOTDIR}/grub/grub.conf does not exist and the correct settings can not be automatically detected."
print_error 1 "Please manually create your ${BOOTDIR}/grub/grub.conf file."
fi
else
# grub.conf already exists; so...
# ... Clone the first boot definition and change the version.
local TYPE
[ "${KERN_24}" -eq '1' ] && TYPE='rd' || TYPE='ramfs'
cp -f ${GRUB_CONF} ${GRUB_CONF}.bak
awk 'BEGIN { RS="\n"; }
{
if(match($0, "kernel-" KNAME "-" ARCH "-" KV))
{ have_k="1" }
if(match($0, "init" TYPE "-" KNAME "-" ARCH "-" KV))
{ have_i="1" }
if(have_k == "1" && have_i == "1")
{ exit 1; }
}' KNAME=${KNAME} ARCH=${ARCH} KV=${KV} TYPE=${TYPE} ${GRUB_CONF}.bak
if [ "$?" -eq '0' ]
then
local LIMIT=$(wc -l ${GRUB_CONF}.bak)
awk -f ${GK_SHARE}/gen_bootloader_grub.awk LIMIT=${LIMIT/ */} KNAME=${KNAME} ARCH=${ARCH} KV=${KV} TYPE=${TYPE} ${GRUB_CONF}.bak > ${GRUB_CONF}
else
print_info 1 "GRUB: Definition found, not duplicating."
fi
fi
}
|
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