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92 lines
2.7 KiB
92 lines
2.7 KiB
#!/bin/bash -eux
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# vi: ts=4 noexpandtab
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#
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# Generate a squashfs root and manifest
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echo "033-kernel-bits.binary"
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case ${IMAGE_TARGETS-} in
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""|*squashfs*)
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;;
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*)
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echo "Skipping squashfs build"
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exit 0
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;;
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esac
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if [ -n "${SUBARCH-}" ]; then
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echo "Skipping rootfs build for subarch flavor build"
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exit 0
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fi
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. config/functions
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. config/common
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INSTALLER_ROOT=binary/boot/installer.squashfs.dir
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KERNEL_BITS_ROOT=binary/boot/kernel-bits.dir
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KERNEL_BITS_OVERLAY=binary/boot/overlay-kernel-bits
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#variants='ga hwe'
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variants='ga'
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for variant in $variants; do
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if [ "$variant" = "ga" ]; then
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kernel_metapkg=linux-generic
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flavor=generic
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elif [ "$variant" = "hwe" ]; then
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kernel_metapkg=linux-generic-hwe-$(lsb_release -sr)
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flavor=generic-hwe
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else
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echo "bogus variant: $variant"
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exit 1
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fi
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# Make preparations
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mkdir -p $KERNEL_BITS_ROOT $KERNEL_BITS_OVERLAY
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mount_overlay "$INSTALLER_ROOT/" "$KERNEL_BITS_OVERLAY/" "$KERNEL_BITS_ROOT/"
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setup_mountpoint $KERNEL_BITS_ROOT
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# Our initramfs hook implements a kind of extreme version of
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# cloud-initramfs-copymods, so remove that and prevent duelling hooks
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env DEBIAN_FRONTEND=noninteractive chroot $KERNEL_BITS_ROOT apt-get -y remove cloud-initramfs-copymods ubuntu-server || true
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# Configure initramfs creation
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mkdir -p "$KERNEL_BITS_ROOT"/etc/initramfs-tools/conf.d/
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if [ -n "$LB_INITRAMFS_COMPRESSION" ]; then
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echo "COMPRESS=$LB_INITRAMFS_COMPRESSION" > "$KERNEL_BITS_ROOT"/etc/initramfs-tools/conf.d/livecd-rootfs.conf
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fi
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echo "export CASPER_GENERATE_UUID=1" > "$KERNEL_BITS_ROOT"/etc/initramfs-tools/conf.d/casper.conf
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# Add a hook to record which kernel was booted and mount the
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# modules.squashfs created below.
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cat <<EOF > "$KERNEL_BITS_ROOT"/etc/initramfs-tools/scripts/init-bottom/live-server
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#!/bin/sh
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case \$1 in
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prereqs) exit 0;;
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esac
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echo ${kernel_metapkg} > /run/kernel-meta-package
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mkdir -p \$rootmnt/lib/modules
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mount \$rootmnt/cdrom/casper/extras/modules.squashfs-$flavor \$rootmnt/lib/modules
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EOF
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chmod +x "$KERNEL_BITS_ROOT"/etc/initramfs-tools/scripts/init-bottom/live-server
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# Install the kernel!
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env DEBIAN_FRONTEND=noninteractive chroot $KERNEL_BITS_ROOT apt-get -y install ${kernel_metapkg}
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# Fish out generated kernel image and initrd
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mv "$KERNEL_BITS_ROOT"/boot/initrd.img-* ${PWD}/livecd.${PROJECT}.initrd-$flavor
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mv "$KERNEL_BITS_ROOT"/boot/vmlinu?-* ${PWD}/livecd.${PROJECT}.kernel-$flavor
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# Create squashfs containing all the modules
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modules_squashfs_path="${PWD}/livecd.${PROJECT}.modules.squashfs-$flavor"
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(cd "$KERNEL_BITS_ROOT/lib/modules" &&
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mksquashfs . $modules_squashfs_path -no-progress -xattrs -comp xz)
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# And clean up
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teardown_mountpoint $KERNEL_BITS_ROOT
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umount $KERNEL_BITS_ROOT
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rm -rf $KERNEL_BITS_ROOT $KERNEL_BITS_OVERLAY
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done
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