scripts/kernel.sh: be smarter about kernel building
Also install the kernel as a "--oneshot" so it doesn't take up space in the image.
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@ -2,22 +2,18 @@ set -ev
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# (possibly) build the kernel
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# (possibly) build the kernel
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current_kernel=""
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current_kernel=$(emerge -qp ${KERNEL}|awk '{print $4}'|cut -d/ -f2|sed s/"${KERNEL}-//;s/-r[1-9]\+$//")
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if [ -d "/var/db/pkg/sys-kernel" ]
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echo $current_kernel
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then
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cd "/var/db/pkg/sys-kernel"
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current_kernel=`/bin/ls -d1 "${KERNEL}-"* | tail -n 1|sed s/"${KERNEL}-//;s/-r[1-9]\+$//"`
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fi
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# If there is already a kernel in /boot and emerging the kernel only
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# If there is already a kernel in /boot and emerging the kernel only
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# re-installs the same package, we can skip this
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# re-installs the same kernel, we can skip this
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if [ -n "$current_kernel" ] && [ -e /boot/vmlinuz ] && \
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if [ -n "$current_kernel" ] && [ -e /boot/vmlinuz ] && \
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readlink /boot/vmlinuz | grep $current_kernel > /dev/null
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readlink /boot/vmlinuz | grep $current_kernel > /dev/null
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then
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then
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exit
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exit
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fi
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fi
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${EMERGE} ${USEPKG} --newuse --noreplace sys-kernel/${KERNEL}
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${EMERGE} ${USEPKG} --oneshot --newuse --noreplace sys-kernel/${KERNEL}
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cp /root/kernel.config /usr/src/linux/.config
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cp /root/kernel.config /usr/src/linux/.config
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gcc-config 1
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gcc-config 1
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cd /usr/src/linux
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cd /usr/src/linux
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