doc: no info on how to log in into a qemu instance

[sed-i]

Following the doc and the command under the Run an emulated ARM64 VM on x86 section, I am presented with a login prompt and user:ubuntu pass:ubuntu is not accepted.

Doc should mention how to log in into that instance.

[  744.226683] cloud-init[1248]: Cloud-init v. 24.3.1-0ubuntu0~22.04.1 finished at Tue, 26 Nov 2024 13:16:12 +0000. Datasource DataSourceNone.  Up 744.15 seconds
[  744.234976] cloud-init[1248]: 2024-11-26 13:16:12,170 - cc_final_message.py[WARNING]: Used fallback datasource
[  OK  ] Finished Cloud-init: Final Stage.
[  OK  ] Reached target Cloud-init target.
 
ubuntu login: ubuntu
Password: 

Login incorrect

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Document: how-to/virtualisation/arm64-vms-on-qemu.md

[cpaelzer]

Yes you are right, thanks @sed-i .
The image has no default password as the risk is too high of leaving that unchanged and that creating many instances easy to attack :.)

What you'd use there is providing cloud-init config data, as you'd do on a real cloud, or openstack or many others - yet often abstracted and hidden from you.

To do so you'd use https://manpages.ubuntu.com/manpages/noble/en/man1/cloud-localds.1.html
which can be used for all that cloud-init can do. But in regard to this request it is about passwords which means https://cloudinit.readthedocs.io/en/latest/reference/modules.html#set-passwords and ssh https://cloudinit.readthedocs.io/en/latest/reference/modules.html#ssh login.

Indeed we should mention that in our documentation - either here or in general and then refer to it.