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make another possibly more generally useful function

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This commit is contained in:
Michael Hudson-Doyle 2018-02-23 09:30:29 +13:00
parent c85cae9bfe
commit 416ef912ed
2 changed files with 50 additions and 13 deletions
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47
live-build/functions
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@ -335,3 +335,50 @@ skip_lb_stage() {
mkdir -p .build
touch ".build/$STAGE"
}
recreate_initramfs() {
# Regenerate the initramfs by running update-initramfs in the
# chroot at $1 and copying the generated initramfs
# around. Beware that this was written for a single use case
# (live-server) and may not work in all cases without
# tweaking...
CHROOT="$1"
# Start by cargo culting bits of lb_chroot_hacks:
chroot "$CHROOT" sh -c "${UPDATE_INITRAMFS_OPTIONS:-} update-initramfs -k all -t -u"
case "${LB_INITRAMFS_COMPRESSION}" in
gzip)
;;
bzip2)
for INITRAMFS in $(find "$CHROOT"/boot -name 'initrd*' -not -type l); do
zcat "${INITRAMFS}" | bzip2 -c ${BZIP2_OPTIONS} > "${INITRAMFS}.new"
mv "${INITRAMFS}.new" "${INITRAMFS}"
done
;;
lzma)
# We probably ought to use COMPRESS= in a temporary file in
# /etc/initramfs-tools/conf.d/ instead, but it's hard to
# pass options that way.
for INITRAMFS in $(find "$CHROOT"/boot -name 'initrd*' -not -type l); do
zcat "${INITRAMFS}" | lzma -c ${LZMA_OPTIONS} > "${INITRAMFS}.new"
mv "${INITRAMFS}.new" "${INITRAMFS}"
done
;;
esac
# Then bits of lb_binary_linux-image:
case "${LB_INITRAMFS}" in
casper)
DESTDIR="binary/casper"
;;
live-boot)
DESTDIR="binary/live"
;;
*)
DESTDIR="binary/boot"
;;
esac
mv "$CHROOT"/boot/initrd.img-* $DESTDIR
}

16
live-build/ubuntu-server/hooks/032-installer-squashfs.binary
View File

@ -50,20 +50,10 @@ EOF
# Install any requirements for the installer, for things we don't want
# to see on the installed system
chroot $SQUASH_ROOT apt-get update
chroot $SQUASH_ROOT apt-get -y install user-setup lupin-casper
chroot $SQUASH_ROOT apt-get -y install user-setup curtin lupin-casper
# Installing lupin-casper means we need a new initramfs, so we
# cargo cult stuff from lb_chroot_hacks:
CASPER_GENERATE_UUID=1 chroot $SQUASH_ROOT update-initramfs -k all -t -u
for INITRAMFS in $(find $SQUASH_ROOT/boot -name 'initrd*' -not -type l); do
zcat "${INITRAMFS}" | lzma -c -6 > "${INITRAMFS}.new"
mv "${INITRAMFS}.new" "${INITRAMFS}"
done
# and lb_binary_linux-image:
mv $SQUASH_ROOT/boot/initrd.img-* binary/casper/
# to replace the previously built one with it.
chroot $SQUASH_ROOT apt-get -y install curtin
# Installing casper means we need a new initramfs
UPDATE_INITRAMFS_OPTIONS=CASPER_GENERATE_UUID=1 recreate_initramfs
# Don't let cloud-init run in the live session.
touch $SQUASH_ROOT/etc/cloud/cloud-init.disabled