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331 lines
9.4 KiB
331 lines
9.4 KiB
#!/bin/bash
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# Genkernel v3
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GK_V='3.1.1d'
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TEMP='/var/tmp/genkernel'
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TODEBUGCACHE=1 # Until an error occurs or DEBUGFILE is fully qualified.
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small_die() {
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echo $1
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exit 1
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}
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source /etc/genkernel.conf || small_die "Could not read /etc/genkernel.conf"
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source ${GK_BIN}/gen_funcs.sh || small_die "Could not read ${GK_BIN}/gen_funcs.sh"
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source ${GK_BIN}/gen_cmdline.sh || gen_die "Could not read ${GK_BIN}/gen_cmdline.sh"
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source ${GK_BIN}/gen_arch.sh || gen_die "Could not read ${GK_BIN}/gen_arch.sh"
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source ${GK_BIN}/gen_determineargs.sh || gen_die "Could not read ${GK_BIN}/gen_determineargs.sh"
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source ${GK_BIN}/gen_compile.sh || gen_die "Could not read ${GK_BIN}/gen_compile.sh"
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source ${GK_BIN}/gen_configkernel.sh || gen_die "Could not read ${GK_BIN}/gen_configkernel.sh"
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source ${GK_BIN}/gen_initrd.sh || gen_die "Could not read ${GK_BIN}/gen_initrd.sh"
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source ${GK_BIN}/gen_moddeps.sh || gen_die "Could not read ${GK_BIN}/gen_moddeps.sh"
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source ${GK_BIN}/gen_package.sh || gen_die "Could not read ${GK_BIN}/gen_package.sh"
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source ${GK_BIN}/gen_bootloader.sh || gen_die "Could not read ${GK_BIN}/gen_bootloader.sh"
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BUILD_KERNEL=0
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BUILD_INITRD=0
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# Parse all command line options...
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while [ $# -gt 0 ]
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do
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Option=$1; shift
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parse_cmdline $Option
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done
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# Check if no action is specified...
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if [ "${BUILD_KERNEL}" -eq 0 -a "${BUILD_INITRD}" -eq 0 ]
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then
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usage
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exit 1
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fi
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clear_log
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NORMAL=${GOOD} print_info 1 "Gentoo Linux Genkernel; Version ${GK_V}${NORMAL}"
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# Set ${ARCH}
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get_official_arch
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# Read arch-specific config
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source ${ARCH_CONFIG} || gen_die "Could not read ${ARCH_CONFIG}"
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source ${GK_SHARE}/${ARCH}/modules_load || gen_die "Could not read ${GK_SHARE}/${ARCH}/modules_load"
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[ ! -f "${TEMP}" ] && mkdir -p "${TEMP}"
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[ ! -f "${CACHE_DIR}" ] && mkdir -p "${CACHE_DIR}"
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# Based on genkernel.conf, arch-specific configs, and commandline options,
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# get the real arguments for usage...
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determine_real_args
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dump_debugcache
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NORMAL=${BOLD} print_info 1 "Compiling Linux Kernel ${BOLD}${KV}${NORMAL} for ${BOLD}${ARCH}${NORMAL}..."
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echo
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if [ "${BUILD_INITRD}" -ne '0' ]
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then
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if ! has_loop
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then
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modprobe loop 2>/dev/null
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if ! has_loop
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then
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print_error 1 'Your kernel does not appear to have loop device support.'
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print_error 1 'Please load loop support before running genkernel!'
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gen_die 'Load loop support!'
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else
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print_info 1 'loop: "loop" module loaded successfully...'
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fi
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fi
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fi
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# Check /boot is mounted
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if isTrue ${CMD_NOINSTALL}
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then
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isTrue ${MOUNTBOOT} && print_info 2 'Skipping automatic mount of boot'
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else
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if ! egrep -q ' /boot ' /proc/mounts
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then
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if egrep -q '^[^#].+ /boot ' /etc/fstab
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then
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if isTrue ${MOUNTBOOT}
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then
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if ! mount /boot
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then
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print_warning 1 "${BOLD}WARNING${NORMAL}: Failed to mount /boot!"
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echo
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else
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print_info 1 'mount: /boot mounted successfully!'
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fi
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else
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print_warning 1 "${BOLD}WARNING${NORMAL}: No mounted /boot partition detected!"
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print_warning 1 ' Run ``mount /boot`` to mount it!'
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echo
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fi
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fi
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elif isBootRO
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then
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if isTrue ${MOUNTBOOT}
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then
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if ! mount -o remount,rw /boot
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then
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print_warning 1 "${BOLD}WARNING${NORMAL}: Failed to remount /boot RW!"
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echo
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else
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print_info 1 "mount: /boot remounted read/write successfully!"
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BOOTRW=1
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fi
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fi
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fi
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fi
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# Check whether another Genkernel is running
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GENPIDS="`ps -C genkernel --no-headers -o pid | wc -l`"
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if [ "${GENPIDS}" -gt '3' ]
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then
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[ "${GENPIDS}" -gt '4' ] && EX='s'
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print_warning 1 "${BOLD}WARNING${NORMAL}: Another Genkernel instance is running under"
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print_warning 1 " process ID${EX} " 0
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GENPIDS=`ps -C genkernel --no-headers -o pid`
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echo -n "${GENPIDS}" | sed -e "s/$$//; s/ /, /g"
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echo 'halting...'
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echo
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print_warning 1 'Running multiple genkernels on the same source tree will cause data loss!'
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print_info 1 "Press ^C to halt; ^D to continue [ ${BOLD}if${NORMAL} you know what you're doing! ]"
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cat
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echo
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CTEMP="${TEMP}"
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TEMP="/var/tmp/genkernel-`dd if=/dev/random count=1 2>/dev/null | md5sum | cut -d\ -f1`"
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print_info 1 'thread: Running multiple genkernels may cause problems!'
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print_info 1 "thread: Temporary files reallocated to ${TEMP}..."
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echo
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fi
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if [ ${BUILD_KERNEL} -eq 1 ]
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then
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# Configure kernel
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config_kernel
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# Make deps
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compile_dep
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# Make prepare [2.6]
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[ "${VER}" -gt '2' ] || [ "${VER}" -eq '2' -a "${PAT}" -ge '6' ] && compile_generic prepare kernel
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# Run postconf
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if [ "${CMD_POSTCONF}" != '' ]
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then
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print_info 1 '' 1 0
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print_info 1 "Preparing to run postconf: \"${CMD_POSTCONF}\"" 0
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CALLBACK_ESCAPE=0
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CALLBACK_COUNT=0
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trap "CALLBACK_ESCAPE=1" TERM KILL INT QUIT ABRT
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while [[ ${CALLBACK_ESCAPE} -eq 0 && ${CALLBACK_COUNT} -lt 5 ]]
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do
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sleep 1; echo -n '.';
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let CALLBACK_COUNT=${CALLBACK_COUNT}+1
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done
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if [ "${CALLBACK_ESCAPE}" -eq 0 ]
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then
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echo
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echo
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eval ${CMD_POSTCONF} | tee -a ${DEBUGFILE}
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CMD_STATUS="${PIPESTATUS[0]}"
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echo
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print_info 1 "<<< Postconf callback exit status: ${CMD_STATUS}"
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[ "${CMD_STATUS}" -ne 0 ] && gen_die '--postconf failed!'
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else
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echo
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print_info 1 '>>> Postconf cancelled...'
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fi
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trap - TERM KILL INT QUIT ABRT
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print_info 1 '' 1 0
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fi
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if [ "${GENSPLASH}" -eq '1' ]
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then
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if [ -x /sbin/splash ]
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then
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[ -z "${GENSPLASH_THEME}" ] && [ -e /etc/conf.d/splash ] && source /etc/conf.d/splash
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[ -z "${GENSPLASH_THEME}" ] && GENSPLASH_THEME=default
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print_info 1 " >> Installing gensplash [ using the ${GENSPLASH_THEME} theme ]..."
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# 2.6.9
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sed -i -e 's:$(obj)/gen_init_cpio $(initramfs-y) FORCE:$(if $(shell [ ! -f $(obj)/initramfs_data.cpio ] \&\& echo 1 ), $(obj)/gen_init_cpio $(initramfs-y)):' ${KERNEL_DIR}/usr/Makefile
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# 2.6.10
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sed -i -e 's:$(obj)/gen_init_cpio \\:$(if $(shell [ ! -f $(obj)/initramfs_data.cpio ] \&\& echo 1 ), $(obj)/gen_init_cpio $(initramfs-y) $(obj)/initramfs_list):' -e 's:$(initramfs-y) $(obj)/initramfs_list FORCE::' ${KERNEL_DIR}/usr/Makefile
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splash_geninitramfs -g ${KERNEL_DIR}/usr/initramfs_data.cpio.gz ${GENSPLASH_THEME}
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gunzip ${KERNEL_DIR}/usr/initramfs_data.cpio.gz
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else
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print_warning 1 ' >> No splash detected; skipping!'
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fi
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fi
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# Compile kernel
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compile_kernel
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# Compile modules
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compile_modules
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if [ ${SAVE_CONFIG} -eq 1 ]
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then
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print_info 1 "Copying config for successful build to /etc/kernels/kernel-config-${ARCH}-${KV}"
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[ ! -e '/etc/kernels' ] && mkdir -p /etc/kernels
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cp "${KERNEL_DIR}/.config" "/etc/kernels/kernel-config-${ARCH}-${KV}"
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fi
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fi
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# Run callback
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if [ "${CMD_CALLBACK}" != "" ]
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then
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print_info 1 "" 1 0
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print_info 1 "Preparing to run callback: \"${CMD_CALLBACK}\"" 0
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CALLBACK_ESCAPE=0
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CALLBACK_COUNT=0
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trap "CALLBACK_ESCAPE=1" TERM KILL INT QUIT ABRT
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while [[ ${CALLBACK_ESCAPE} -eq 0 && ${CALLBACK_COUNT} -lt 5 ]]
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do
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sleep 1; echo -n '.';
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let CALLBACK_COUNT=${CALLBACK_COUNT}+1
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done
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if [ "${CALLBACK_ESCAPE}" -eq 0 ]
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then
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echo
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echo
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eval ${CMD_CALLBACK} | tee -a ${DEBUGFILE}
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CMD_STATUS="${PIPESTATUS[0]}"
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echo
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print_info 1 "<<< Callback exit status: ${CMD_STATUS}"
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[ "${CMD_STATUS}" -ne 0 ] && gen_die '--callback failed!'
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else
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echo
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print_info 1 ">>> Callback cancelled..."
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fi
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trap - TERM KILL INT QUIT ABRT
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print_info 1 "" 1 0
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fi
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if [ "${BUILD_INITRD}" -eq '1' ]
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then
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# Compile dietlibc
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# if [ "${USE_DIETLIBC}" = '1' ]
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# then
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# compile_dietlibc
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# fi
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# Compile Busybox
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compile_busybox
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# Only compile insmod if we're installing modules onto the initrd
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if [ "${NOINITRDMODULES}" = '' ]
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then
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if [ "${PAT}" -gt '4' ]
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then
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# Compile module-init-tools
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compile_module_init_tools
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else
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compile_modutils
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fi
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fi
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compile_devfsd
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if [ "${DEVFS}" -eq '0' ]
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then
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[ "${VER}" -gt '2' ] || [ "${VER}" -eq '2' -a "${PAT}" -ge '6' ] && UDEV=1
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fi
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[ "${UDEV}" -eq '1' ] && compile_udev
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# Create initrd
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create_initrd
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else
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print_info 1 'initrd: Not building since only the kernel was requested...'
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fi
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[ "${MINKERNPACKAGE}" != "" ] && gen_minkernpackage
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[ "${MAXKERNPACKAGE}" != "" ] && gen_maxkernpackage
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# Clean up...
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[ -n "${CTEMP}" ] && rm -rf "${TEMP}"
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if [ "${BUILD_KERNEL}" -eq '1' ]
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then
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set_bootloader
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print_info 1 ''
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print_info 1 "Kernel compiled successfully!"
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print_info 1 ''
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print_info 1 'Required Kernel Parameters:'
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if [ "${BUILD_INITRD}" -eq '0' ]
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then
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print_info 1 ' root=/dev/$ROOT'
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print_info 1 ' [ And "vga=0x317 splash=verbose" if you use a framebuffer ]'
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print_info 1 ''
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print_info 1 ' Where $ROOT is the device node for your root partition as the'
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print_info 1 ' one specified in /etc/fstab'
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else
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print_info 1 ' root=/dev/ram0 real_root=/dev/$ROOT init=/linuxrc'
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[ "${INITRD_SIZE}" -ge 4096 ] && print_info 1 " ramdisk_size=8192"
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print_info 1 ' [ And "vga=0x317 splash=verbose" if you use a framebuffer ]'
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print_info 1 ''
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print_info 1 ' Where $ROOT is the device node for your root partition as the'
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print_info 1 ' one specified in /etc/fstab'
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print_info 1 ''
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print_info 1 "If you require Genkernel's hardware detection features; you MUST"
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print_info 1 'tell your bootloader to use the provided initrd file. Otherwise;'
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print_info 1 'substitute the root argument for the real_root argument if you are'
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print_info 1 'not planning to use the initrd...'
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fi
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else
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print_info 1 ''
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print_info 1 'initrd compiled successfully!'
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fi
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[ "${BOOTRW}" != '' ] && mount -o remount,ro /boot
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print_info 1 ''
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print_info 1 'Do NOT report kernel bugs as genkernel bugs unless your bug'
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print_info 1 'is about the default genkernel configuration...'
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print_info 1 ''
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print_info 1 'Make sure you have the latest genkernel before reporting bugs.'
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