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do the mounting in an initrd script rather than systemd units

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This commit is contained in:
Michael Hudson-Doyle 2021-07-29 11:57:04 +12:00
parent 5fda0bb2aa
commit b341c81ff3
4 changed files with 13 additions and 19 deletions
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13
live-build/ubuntu-server/hooks/03-kernel-metapkg.chroot_early
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@ -18,6 +18,14 @@ case $PASS in
;;
esac
# Add a script to record which kernel meta-package to use and to set
# up the /media/filesystem mount that subiquity currently depends
# on. It would be cleaner to do this mount in a systemd mount unit but
# that doesn't work because we mask the cdrom mount to avoid strange
# issues with the handover from the initrd to systemd in the live
# session. In any case, subiquity will sooner or later not require
# this mount to be here at all and then we can delete these mount commands.
cat <<EOF > /etc/initramfs-tools/scripts/init-bottom/live-server
#!/bin/sh
case \$1 in
@ -25,6 +33,11 @@ prereqs) exit 0;;
esac
echo ${kernel_metapkg} > /run/kernel-meta-package
mkdir -p \${rootmnt}/media/filesystem \${rootmnt}/media/full \${rootmnt}/media/minimal
mount -o ro -t squashfs \${rootmnt}/cdrom/casper/ubuntu-server-minimal.squashfs \${rootmnt}/media/minimal
mount -o ro -t squashfs \${rootmnt}/cdrom/casper/ubuntu-server-minimal.ubuntu-server.squashfs \${rootmnt}/media/full
mount -o ro,lowerdir=\${rootmnt}/media/full:\${rootmnt}/media/minimal -t overlay overlay \${rootmnt}/media/filesystem
EOF
chmod +x /etc/initramfs-tools/scripts/init-bottom/live-server

9
live-build/ubuntu-server/includes.chroot.ubuntu-server-minimal.ubuntu-server.installer/usr/lib/systemd/system/media-filesystem.mount
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@ -1,9 +0,0 @@
[Unit]
Requires=media-full.mount media-minimal.mount
After=media-full.mount media-minimal.mount
[Mount]
What=/cdrom/casper/ubuntu-server-minimal.ubuntu-server.squashfs
Where=/media/filesystem
Type=overlay
Options=ro,lowerdir=/media/full:/media/minimal

5
live-build/ubuntu-server/includes.chroot.ubuntu-server-minimal.ubuntu-server.installer/usr/lib/systemd/system/media-full.mount
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@ -1,5 +0,0 @@
[Mount]
What=/cdrom/casper/ubuntu-server-minimal.ubuntu-server.squashfs
Where=/media/full
Type=squashfs
Options=ro

5
live-build/ubuntu-server/includes.chroot.ubuntu-server-minimal.ubuntu-server.installer/usr/lib/systemd/system/media-minimal.mount
View File

@ -1,5 +0,0 @@
[Mount]
What=/cdrom/casper/ubuntu-server-minimal.squashfs
Where=/media/minimal
Type=squashfs
Options=ro