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96 lines
2.8 KiB
96 lines
2.8 KiB
#!/bin/bash
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set_bootloader() {
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if [ "x$BOOTLOADER" == 'xgrub' ]
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then
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set_grub_bootloader
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else
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return 0
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fi
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}
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set_grub_bootloader() {
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local GRUB_CONF='/boot/grub/grub.conf'
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print_info 1 ''
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print_info 1 "Adding kernel to $GRUB_CONF..."
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# Extract block device information from /etc/fstab
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local GRUB_ROOTFS=$(awk '/[[:space:]]\/[[:space:]]/ { print $1 }' /etc/fstab)
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local GRUB_BOOTFS=$(awk '/^[^#].+[[:space:]]\/boot[[:space:]]/ { print $1 }' /etc/fstab)
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# If /boot is not defined in /etc/fstab, it must be the same as /
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[ "x$GRUB_BOOTFS" == 'x' ] && GRUB_BOOTFS=$GRUB_ROOTFS
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# Read GRUB device map
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echo ${tmp}
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if [ ! -d ${tmp} ]
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then
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mkdir ${tmp}
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fi
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grub --batch --device-map=${tmp}/grub.map <<EOF >/dev/null
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quit
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EOF
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# Get the GRUB mapping for our device
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local GRUB_BOOT_DISK1=$(echo $GRUB_BOOTFS | sed -e 's#\(/dev/.\+\)[[:digit:]]\+#\1#')
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echo ${GRUB_BOOT_DISK1}
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local GRUB_BOOT_DISK=$(awk '{if ($2 == "'$GRUB_BOOT_DISK1'") {gsub(/(\(|\))/, "", $1); print $1;}}' ${tmp}/grub.map)
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local GRUB_BOOT_PARTITION=$(echo $GRUB_BOOTFS | sed -e 's#/dev/.\+\([[:digit:]]\+\)#\1#')
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if [ ! -d ${tmp} ]
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then
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rm -r ${tmp}
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fi
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echo ${GRUB_ROOTFS}
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echo ${GRUB_BOOTFS}
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echo ${GRUB_BOOT_DISK}
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echo ${GRUB_BOOT_PARTITION}
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# Create grub configuration directory and file if it doesn't exist.
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[ ! -e `basename $GRUB_CONF` ] && mkdir -p `basename $GRUB_CONF`
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if [ ! -e $GRUB_CONF ]
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then
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if [ "${GRUB_BOOT_DISK}" = '' -o "${GRUB_BOOT_PARTITION}" = '' ]
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then
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print_error 1 'Error! /boot/grub/grub.conf does not exist and the correct settings can\'t be automatically detected.'
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print_error 1 'Please manually create your /boot/grub/grub.conf file.'
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else
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# grub.conf doesn't exist - create it with standard defaults
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touch $GRUB_CONF
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echo 'default 0' >> $GRUB_CONF
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echo 'timeout 5' >> $GRUB_CONF
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echo >> $GRUB_CONF
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# Add grub configuration to grub.conf
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echo "# Genkernel generated entry, see GRUB documentation for details" >> $GRUB_CONF
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echo "title=Gentoo Linux ($KV)" >> $GRUB_CONF
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echo -e "\troot ($GRUB_BOOT_DISK,$GRUB_BOOT_PARTITION)" >> $GRUB_CONF
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if [ "${BUILD_INITRD}" -eq '0' ]
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then
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echo -e "\tkernel /kernel-$KV root=$GRUB_ROOTFS" >> $GRUB_CONF
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else
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echo -e "\tkernel /kernel-$KV root=/dev/ram0 init=/linuxrc real_root=$GRUB_ROOTFS" >> $GRUB_CONF
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echo -e "\tinitrd /initrd-$KV" >> $GRUB_CONF
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fi
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echo >> $GRUB_CONF
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fi
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else
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# grub.conf already exists; so...
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# ... Clone the first boot definition and change the version.
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cp $GRUB_CONF $GRUB_CONF.bak
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awk 'BEGIN { RS="" ; FS="\n" ; OFS="\n" ; ORS="\n\n" }
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NR == 2 {
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ORIG=$0;
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sub(/\(.+\)/,"(" KV ")",$1);
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sub(/kernel-[[:alnum:][:punct:]]+/, "kernel-" KV, $3);
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sub(/initrd-[[:alnum:][:punct:]]+/, "initrd-" KV, $4);
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print RS $0;
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print RS ORIG;}
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NR != 2 { print RS $0; }' KV=$KV $GRUB_CONF.bak > $GRUB_CONF
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fi
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}
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