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subiquity: LazyUnmount=yes /usr/lib/modules mountpoint.

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Subiquity images mount /usr/lib/modules from a squashfs, which systemd tries to unmount on shutdown, whilst they are still being in use. This produces an error on shutdown, flooding the screen with messages as systemd switches to a more verbose shutdown. Specify LazyUnmount=yes on that mount, such that unmount call succeeds without flooding the shutdown log.
This commit is contained in:
Dimitri John Ledkov 2019-10-04 19:37:57 +01:00
parent fd9257c294
commit 8203558758
2 changed files with 16 additions and 2 deletions
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11
debian/changelog vendored
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@ -1,3 +1,14 @@
livecd-rootfs (2.616) UNRELEASED; urgency=medium
* Subiquity images mount /usr/lib/modules from a squashfs, which systemd
tries to unmount on shutdown, whilst they are still being in use. This
produces an error on shutdown, flooding the screen with messages as
systemd switches to a more verbose shutdown. Specify LazyUnmount=yes
on that mount, such that unmount call succeeds without flooding the
shutdown log.
-- Dimitri John Ledkov <xnox@ubuntu.com> Fri, 04 Oct 2019 19:35:56 +0100
livecd-rootfs (2.615) eoan; urgency=medium
* magic-proxy: dump proxy log to stdout on failure

7
live-build/ubuntu-server/hooks/033-kernel-bits.binary
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@ -67,8 +67,11 @@ prereqs) exit 0;;
esac
echo ${kernel_metapkg} > /run/kernel-meta-package
mkdir -p \$rootmnt/lib/modules
mount \$rootmnt/cdrom/casper/extras/modules.squashfs-$flavor \$rootmnt/lib/modules
mkdir -p \$rootmnt/usr/lib/modules
mount \$rootmnt/cdrom/casper/extras/modules.squashfs-$flavor \$rootmnt/usr/lib/modules
mkdir -p /run/systemd/system/usr-lib-modules.mount.d
echo '[Mount]' >> /run/systemd/system/usr-lib-modules.mount.d/lazy.conf
echo 'LazyUnmount=yes' >> /run/systemd/system/usr-lib-modules.mount.d/lazy.conf
EOF
chmod +x "$KERNEL_BITS_ROOT"/etc/initramfs-tools/scripts/init-bottom/live-server