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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='/boot/grub/grub.conf'
print_info 1 ''
print_info 1 "Adding kernel to $GRUB_CONF..."
# Extract block device information from /etc/fstab
local GRUB_ROOTFS=$(awk '/[[:space:]]\/[[:space:]]/ { print $1 }' /etc/fstab)
local GRUB_BOOTFS=$(awk '/^[^#].+[[:space:]]\/boot[[:space:]]/ { print $1 }' /etc/fstab)
# If /boot is not defined in /etc/fstab, it must be the same as /
[ "x$GRUB_BOOTFS" == 'x' ] && GRUB_BOOTFS=$GRUB_ROOTFS
# Read GRUB device map
[ ! -d ${tmp} ] && mkdir ${tmp}
grub --batch --device-map=${tmp}/grub.map <<EOF >/dev/null
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;}}' ${tmp}/grub.map)
local GRUB_BOOT_PARTITION=$(echo $GRUB_BOOTFS | sed -e 's#/dev/.\+\([[:digit:]]\+\)#\1#')
[ ! -d ${tmp} ] && rm -r ${tmp}
# Create grub configuration directory and file if it doesn't exist.
[ ! -e `basename $GRUB_CONF` ] && mkdir -p `basename $GRUB_CONF`
if [ ! -e $GRUB_CONF ]
then
if [ "${GRUB_BOOT_DISK}" = '' -o "${GRUB_BOOT_PARTITION}" = '' ]
then
print_error 1 'Error! /boot/grub/grub.conf does not exist and the correct settings can\'t be automatically detected.'
print_error 1 'Please manually create your /boot/grub/grub.conf file.'
else
# 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' -a "${CMD_BOOTSPLASH}" != '1' ]
then
echo -e "\tinitrd /initramfs-${KNAME}-${ARCH}-${KV}" >> $GRUB_CONF
else
echo -e "\tinitrd /initrd-${KNAME}-${ARCH}-${KV}" >> $GRUB_CONF
fi
fi
echo >> $GRUB_CONF
fi
else
# grub.conf already exists; so...
# ... Clone the first boot definition and change the version.
local TYPE
[ "${KERN_24}" -eq '1' ] && TYPE='rd' || TYPE='ramfs'
cp $GRUB_CONF $GRUB_CONF.bak
awk 'BEGIN { RS="" ; FS="\n" ; OFS="\n" ; ORS="\n\n" }
NR == 2 {
ORIG=$0;
sub(/\(.+\)/,"(" KV ")",$1);
sub(/kernel-[[:alnum:][:punct:]]+/, "kernel-" KNAME "-" ARCH "-" KV, $3);
sub(/initr(d|amfs)-[[:alnum:][:punct:]]+/, "init" TYPE "-" KNAME "-" ARCH "-" KV, $4);
print RS $0;
print RS ORIG;}
NR != 2 { print RS $0; }' KNAME=$KNAME ARCH=$ARCH KV=$KV TYPE=$TYPE $GRUB_CONF.bak > $GRUB_CONF
fi
}
|
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