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A few simple tweaks to reduce size of live servers installer.squashfs

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- Do not run apt-get update (which can bring in package lists if we are
    unlucky wrt publisher schedules).
  - Run apt-get clean to clear out downloaded debs of curtin/casper and
    dependencies.
  - Do not install user-setup.
  - Use the core snap from the base filesystem if present.
This commit is contained in:
Michael Hudson-Doyle 2018-12-17 13:37:36 +13:00
parent a473683ac7
commit f129e5797a
2 changed files with 17 additions and 7 deletions
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7
debian/changelog vendored
View File

@ -11,6 +11,13 @@ livecd-rootfs (2.525.13) UNRELEASED; urgency=medium
/lib/modules from a squashfs on the ISO.
* Do no install openssh-server in the base filsystem for the live server
installer.
* A few simple tweaks to reduce size of live servers installer.squashfs:
- Do not run apt-get update (which can bring in package lists if we are
unlucky wrt publisher schedules).
- Run apt-get clean to clear out downloaded debs of curtin/casper and
dependencies.
- Do not install user-setup.
- Use the core snap from the base filesystem if present.
-- Michael Hudson-Doyle <michael.hudson@ubuntu.com> Thu, 13 Dec 2018 15:22:15 +1300

17
live-build/ubuntu-server/hooks/032-installer-squashfs.binary
View File

@ -51,8 +51,9 @@ EOF
# Install any requirements for the installer, for things we don't want
# to see on the installed system
chroot $INSTALLER_ROOT apt-get update
chroot $INSTALLER_ROOT apt-get -y install user-setup curtin lupin-casper
chroot $INSTALLER_ROOT apt-get -y install curtin lupin-casper
chroot $INSTALLER_ROOT apt-get clean
# For bug #1743643 "Install to dirty disk with swap fails" remove the
# "helpful" casper script that mounts any swap partitions it finds.
@ -65,15 +66,17 @@ touch $INSTALLER_ROOT/etc/cloud/cloud-init.disabled
chroot $INSTALLER_ROOT mkdir -p /var/lib/snapd/seed/snaps /var/lib/snapd/seed/assertions
chroot $INSTALLER_ROOT sh -c '
set -x;
cd /var/lib/snapd/seed;
sudo SNAPPY_STORE_NO_CDN=1 snap download core;
sudo SNAPPY_STORE_NO_CDN=1 snap download subiquity;
mkdir -p /var/lib/snapd/seed/snaps/
cd /var/lib/snapd/seed/snaps/;
if [ ! -e core_*.snap ]; then
SNAPPY_STORE_NO_CDN=1 snap download core
fi
SNAPPY_STORE_NO_CDN=1 snap download subiquity;
CORE_SNAP=$(ls -1 core*.snap);
CORE_SNAP=$(ls -1 core_*.snap);
SUBIQUITY_SNAP=$(ls -1 subiquity*.snap);
mv *.assert /var/lib/snapd/seed/assertions/;
mv *.snap /var/lib/snapd/seed/snaps/;
cat <<EOF > /var/lib/snapd/seed/seed.yaml
snaps: