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