Working with Ubuntu 22.04 autoinstall can be challenging due to incomplete documentation and time-consuming debugging. This post shares my experience and offers tips to help others facing similar issues.
Here is the documentation of autoinstall and curtain.
And my work: https://github.com/hugotkk/labs/blob/main/ubuntu-quickstart/user-data
Remember the #cloud-config Header#
The #cloud-config header is crucial for a successful autoinstall. Without it, the process won’t work.
Customizing Storage: Fixing the ‘fstype’ Error#
While customizing storage, I encountered an error: “LVM_LogicalVolume object has no attribute ‘fstype’.” To resolve this, modify the ‘mount’ reference to ‘format’ instead of LVM, as shown below:
- id: lv-root
type: lvm_partition
name: root
volgroup: vg
size: 10G
- id: root-fs
type: format
fstype: ext4
volume: lv-root
- id: mount-root
type: mount
path: /
device: lv-root # should reference to root-fs not lv-root
Installing Software in late-commands#
When trying to install software in the late-commands section, keep in mind that during autoinstall, Ubuntu is mounted on /target, not /. To address this, use curtin:
late-commands:
- curtin in-target --target=/target -- <INSTALL_CMD_LIKE_APT_INSTALL>
Two Ways to Use autoinstall#
There are two methods for using autoinstall: over HTTP and with an additional volume. I found the latter more practical in my case as I’m using Virtualbox.