Can't install centos8 template

tjbbjt · March 19, 2022, 6:48pm

[username@dom0 ~]$ sudo qubes-dom0-update --enablerepo=qubes-templates-community-testing qubes-template-centos-8
Redirecting to ‘qvm-template install --enablerepo=qubes-templates-community-testing centos-8’
‘/root/.cache/qvm-template/qubes-template-centos-8-0:4.0.6-202010191306.rpm’ already exists, skipping…
Installing template ‘centos-8’…
tar: ./var/lib/qubes/vm-templates/centos-8/root.img.part.02: Wrote only 9216 of 10240 bytes
tar: ./var/lib/qubes/vm-templates/centos-8/root.img.part.03: Cannot write: No space left on device
tar: ./var/lib/qubes/vm-templates/centos-8/vm-whitelisted-appmenus.list: Cannot write: No space left on device
tar: ./var/lib/qubes/vm-templates/centos-8/whitelisted-appmenus.list: Cannot write: No space left on device
tar: Exiting with failure status due to previous errors
ERROR: Failed to extract centos-8 template

Does this mean dom0 is out of space? Any ideas?

enmus · March 20, 2022, 8:34am

It is pretty self explanatory. You don’t have enough space in dom0. You probably tried several times and cache is full. So, clear it, or even resize dom0.

fsflover · March 20, 2022, 10:05am

Moved to User Support

tjbbjt · March 20, 2022, 5:42pm

How does one go about resizing dom0 and clearing the cache?? Thanks!

enmus · March 20, 2022, 6:59pm

Cleaning:

1-delete files from .cache into the home

rm -r /home/user/.cache/*

2-delete old logs files from

/var/log/

3-delete old journal logs (if i dont need them)

sudo rm -r /var/log/journal/*

4- run the command

sudo dnf clean all

Resizing dom0

In 4.1 dom0 size is 20GB which might not be enough for large templates. So you can permanently resize dom0

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

or temporarily

github.com

unman/notes/blob/master/Installing_Templates_Qubes_4.1.md#2-add-more-space-to-dom0-temporarily

# 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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It’s not mandatory to set 40gigs. Set as much as you want.

tjbbjt · March 20, 2022, 7:40pm

Thank you enmus, this info is very helpful!

enmus · March 20, 2022, 7:44pm

You are welcome.

jpbaiocchi · June 5, 2022, 4:28pm

It was the RPMs in the ~/.cache/qvm-templates for me. I had three of them from prior failed installations just sitting there eating up space.