XO templates cd image problem

mietek

Hi all,
I am having issues with cd images attaching to the template created.
I need this for the cloud-init configuration.
There are 2 ways I try to accomplish that on freshly created Debian 10 template with cloud-init packages installed:

I create new vm in XO and boot it. I stop it on grub level, then I attach my cd image with cloud-init user, meta and network data in XO, continue with the boot - cloud-init works as expected.
I create vm in CLI:

xe vm-install new-name-label=<vm_name> template=Debian10_cloud-init_template
xe vm-cd-add vm=Debian10_cloud-init_template cd-name=nciso11.iso device=4
xe vm-start vm=Debian10_cloud-init_template

and cloud-init does not work, cd is not moutable as it says that there is noting to mount.

Only difference I see is that when I create VM in XO I got two cd devices:

CD 0 VBD:
uuid ( RO)             : 7663f608-efdd-38e0-581a-87d2a21da3fc
    vm-name-label ( RO): Debian_10_cloud_init_template
            empty ( RO): false
       userdevice ( RW): 3

CD 0 VDI:
uuid ( RO)             : 105c96fb-0d1f-4df3-bf6e-e8edf51ee78a
       name-label ( RW): nciso11.iso
    sr-name-label ( RO): ISO's
     virtual-size ( RO): 376832

When I create it in CLI I have 3 fore some reason:

CD 0 VBD:
uuid ( RO)             : 3f18cca9-2630-0e2f-d146-ddd1f716ea65
    vm-name-label ( RO): Debian_10_cloud_init_template
            empty ( RO): false
       userdevice ( RW): 4


CD 0 VDI:
uuid ( RO)             : 105c96fb-0d1f-4df3-bf6e-e8edf51ee78a
       name-label ( RW): nciso11.iso
    sr-name-label ( RO): ISO's
     virtual-size ( RO): 376832


CD 1 VBD:
uuid ( RO)             : d28e5090-4e2c-cbaf-fbab-4ccbdd54c3ca
    vm-name-label ( RO): Debian_10_cloud_init_template
            empty ( RO): true
       userdevice ( RW): 3

... and then coud-init does not work as cd is not mountable - no media (???).

Could someone explain to me why CLI creates additional and empty CD? Thanks!

olivierlambert

Hi,

I personally recommend that you use xo-cli (CLI of Xen Orchestra), that would be better in the end (one central point, no need to access the host, only XO).

mietek

Thanks @livierlambert - I will try that just to compare maybe it will give me results I need.

mietek

OK - found the problem.
I do not need to add CD I need to insert it.

xe vm-cd-insert vm=<name_of_your_vm> cd-name=<name_of_your_file.iso>

If xe will say that there is no empty cdrom - eject inserted media:

xe vm-cd-eject vm=<name_of_your_vm>

and then insert it ...

olivierlambert

Ah yes, I forgot that, since I'm not using xe for those commands (but XO or xo-cli)

Good news anyway!

mietek

following this xo-cli thread though - is there a possibility to install xo-cli on the server which is not a xen server? Or it has to be the one and even more - the one with xen-orchestra?

olivierlambert

You can install xo-cli anywhere you like. It's a client to xo-server, like xo-web

See:

mietek

This is a great news as I will be able to have all my scripts written as of now and xo-cli in one place.
Thanks @livierlambert

For those who are looking for direct instructions ... on Debian 10.x:

# install npm:

apt install npm

# install xo-cli:

npm install -g xo-cli