LXD Windows VM cloudinit iso filenames

shaner · February 18, 2021, 9:20pm

Cloudbase-IT Cloudinit is failing to find filenames ‘user_data’, ‘meta_data’, and ‘vendor_data’ in the config drive as their filenames are limited to only 8 characters. I found the command used to generate the ISO, and it SHOULD allow for characters longer than 8 if IIUC. Perhaps windows is mounting it incorrectly?

Screenshot:
cloudinit_iso_windows

github.com

lxc/lxd/blob/81a6260481e667d776a947c564ac92595db591c4/lxd/device/disk.go#L1834


	err = ioutil.WriteFile(filepath.Join(scratchDir, "meta-data"), []byte(metaData), 0400)
	if err != nil {
		return "", err
	}
	// Finally convert the config drive dir into an ISO file. The cidata label is important
	// as this is what cloud-init uses to detect, mount the drive and run the cloud-init
	// templates on first boot. The vendor-data template then modifies the system so that the
	// config drive is mounted and the agent is started on subsequent boots.
	isoPath := filepath.Join(d.inst.Path(), "config.iso")
	_, err = shared.RunCommand(mkisofsPath, "-R", "-V", "cidata", "-o", isoPath, scratchDir)
	if err != nil {
		return "", err
	}
	// Remove the config drive folder.
	os.RemoveAll(scratchDir)
	return isoPath, nil
}

Has anybody else ran into this issue, am I doing something wrong here?

stgraber · February 18, 2021, 10:52pm

Maybe https://github.com/lxc/lxd/pull/8486 will help

shaner · February 19, 2021, 1:21am

Yes, I suspect it will! Thank you so much!