30dc18a5dc
Save config to /etc/kernelconf and use it for rebuilds. this should prevent raceconditions between enabling a feature and rebooting and upgrading the kernel. (the upgraded kernel should no be based on the new feature build.)
87 lines
2 KiB
Bash
Executable file
87 lines
2 KiB
Bash
Executable file
#!/usr/bin/env bash
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SRC_TREE="/usr/src/linux"
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SRC_CONFIG=".config"
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CONFIGDIR="/etc/kernelconf"
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declare -a OUT
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umask 022
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LWD="$PWD"
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cd "$SRC_TREE" || exit 1
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if [[ ! -f $SRC_CONFIG ]] ; then
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NOCONFIG="1"
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fi
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if [[ "$1" == "--force" ]] ; then
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FORCE="1"
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fi
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for config in "/proc/config.gz" "$CONFIGDIR/latest" ; do
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if [[ -f "$config" ]] ; then
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OLDCONFIG="$config"
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fi
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done
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if [[ "$NOCONFIG" || "$FORCE" ]] ; then
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echo "**************** building kernel ***********"
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TIMESTAMP=$(date +%F-%H_%M_%S)
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if [[ "$NOCONFIG" ]] ; then
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if [[ -n "$OLDCONFIG" ]] ; then
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OUT+=("********** Using old config ************")
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echo "${OUT[-1]}"
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zcat -f "$config" > .config
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else
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OUT+=("********** WARNING! No old config has been found! Using defconfig! ************")
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echo "${OUT[-1]}"
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make defconfig
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fi
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else
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OUT+=("Found kernel config in source tree!")
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echo "${OUT[-1]}"
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fi
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make olddefconfig
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echo mounting boot if not yet mounted
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mount /boot 2> /dev/null
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CORES="$(getconf _NPROCESSORS_ONLN)"
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(nice make -j -l$((CORES-1)) CC="ccache gcc" && make install ; make modules_install) > "buildlog-$TIMESTAMP" || tail -n 20 "buildlog-$TIMESTAMP"
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GRUBMKONFIG="$(which grub2-mkconfig 2> /dev/null)"
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if [[ -z "$GRUBMKONFIG" ]] ; then
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GRUBMKONFIG="$(which grub-mkconfig)"
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fi
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if [[ -f /boot/grub2/grub.cfg && -n "$GRUBMKONFIG" ]] ; then
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"$GRUBMKONFIG" -o /boot/grub2/grub.cfg
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elif [[ -f /boot/grub/grub.cfg && -n "$GRUBMKONFIG" ]] ; then
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"$GRUBMKONFIG" -o /boot/grub/grub.cfg
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else
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echo "please update bootloader manually!"
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fi
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echo
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echo
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echo Summary:
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IFS=$'\n' echo -e "${OUT[*]}"
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echo diff between current running und last build config:
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diff .config <(zcat -f "${OLDCONFIG}" )
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if [[ -d "$CONFIGDIR" ]] ; then
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VERSIONSTRING=$(basename $(realpath $(pwd)))
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TARGET="$CONFIGDIR/${VERSIONSTRING}_$(date --iso=minutes)"
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cp .config "$TARGET"
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ln -f -rs "$TARGET" "$CONFIGDIR/latest"
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fi
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fi
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cd "${LWD}" || exit 1
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emerge @module-rebuild
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