What is the latest solution for dom0 qvm-template "no space on device" problem as of 2023 under R4.1?

logoerthiner · June 21, 2023, 1:12pm

Dom0 root is 20G in size.

Today I attempted to install fedora-38-xfce, but got fired back by a no space on device:

Installing template 'fedora-38-xfce'...
tar: ./var/lib/qubes/vm-templates/fedora-38-xfce/root.img.part.04: Wrote only 4096 of 10240 bytes
tar: ./var/lib/qubes/vm-templates/fedora-38-xfce/vm-whitelisted-appmenus.list: Cannot write: No space left on device
tar: ./var/lib/qubes/vm-templates/fedora-38-xfce/whitelisted-appmenus.list: Cannot write: No space left on device
tar: Exiting with failure status due to previous errors

20GB can be used up quickly, some of the monsters that take up most of dom0 spaces are 6 set of dom0 kernel modules (2.2G) and appvm kernels (3.5G), also log files takes up 1G. Adding other executable files and library files which sums up around 2G, and the rpm itself 2G.

When the rpm installs, everything is untared first (untarred into like 5G), making things worse.

Some simple misoperation will make installation fail.

In general what are preferable solutions?

–

Also every time I install a template now, the installed vm starts and then failed to boot by timeout. Considering that nearly every new template will take a lot of time when it first boots and will be slower than normal VM, whether the boot failure will affect later operation may need to be clarified and the first boot timeout may be better relaxed.

disp6252 · June 21, 2023, 1:55pm

github.com

unman/notes/blob/master/Installing_Templates_Qubes_4.1.md

# Installing Templates in Qubes 4.1

## Problem 
Qubes 4.1 has limited the size of dom0 to 20G by default.  
This means that when installing some templates, the install will fail with the message
`error an extra X required`.  
The problem is that when installing a template from an rpm package, the template is first unpacked in parts in `/var/lib/qubes/vm-templates/TEMPLATE_NAME`, and then rebuilt from those parts.

There are 2 solutions, depending on whether you want to permanently increase the size of dom0.

### 1. Resize dom0 permanently

```
sudo lvresize --size 40G /dev/qubes_dom0/root
sudo resize2fs /dev/mapper/qubes_dom0-root
```

### 2. Add more space to dom0 temporarily
The process here is to create a new thin_pool, and mount it in dom0 where the package will be unpacked.

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solene · June 21, 2023, 3:10pm

Maybe the default dom0 size could be increased a bit to cope with templates upgrades out of the box

secblocks · June 22, 2023, 8:20am

I try it before it`s work good