3.2 can not update dom0 - error "no enabled repos" and "tar not found"

[cubit]

I have noticed that on my Qubes 3.2 install running an update check on dom0 no longer works as expected.

If I run an update through qubes manager I get the window saying "Please wait for updater to launch" it shortly disappears and nothing else happens.

If I use terminal in dom0 and run "qubes-dom0-update" I get several error messages

sh: tar: command not found
Checking for dom0 updates...
Can not read configuration: /var/lib/qubes/dom0-updates/etc/yum.conf , ignoring
Unable to detect release version (use '--releasever' to specify release version)
Can not read configuration: /var/lib/qubes/dom0-updates/etc/yum.conf , ignoring
Error: There are no enabled repos.

looking in /var/lib/qubes the folder "dom0-updates" does not exist.  "which tar" shows it is in /usr/bin

Does anyone know how to fix this?

Cubit

[Franz]

I had similar problem but found that if I change sys-firewall template to Debian9 it works again. Should be a problem with Fedora-27.

Best

Fran

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[cubit]

14. Jun 2018 14:25 by 169...@gmail.com:

I had similar problem but found that if I change sys-firewall template to Debian9 it works again. Should be a problem with Fedora-27.

Best

Fran

My sys-firewall is Fedora28.   I'll try debian9

How though does the template affect dom0?

[Ivan Mitev]

On 06/14/2018 05:42 PM, cubit wrote:
> 14. Jun 2018 14:25 by 169...@gmail.com <mailto:169...@gmail.com>:

dom0 uses sys-firewall to download updates.

qvm-dom0-update uses tar to pass updates from sys-firewall to dom0 (see
line ~172 of the script) so updating dom0 won't work if tar isn't
installed in sys-firewall's template. It looks like your fedora template
lack tar (or the update can't find it). No idea why though, IIRC tar is
installed by default in qubes templates.

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[cubit]

14. Jun 2018 15:32 by iv...@maa.bz:

Yup looks like tar is missing from template.  Damned if I know how it got removed,  it's the repo template of fedora 28 and I've only installed software to it, not removed.

Will install it and see if that improves anything.

[Ivan Mitev]

On 06/14/2018 06:49 PM, cubit wrote:
> 14. Jun 2018 15:32 by iv...@maa.bz <mailto:iv...@maa.bz>:

>
>> On 06/14/2018 05:42 PM, cubit wrote:
>>
>>> How though does the template affect dom0?
>>
>> dom0 uses sys-firewall to download updates.
>>
>> qvm-dom0-update uses tar to pass updates from sys-firewall to dom0 (see
>> line ~172 of the script) so updating dom0 won't work if tar isn't
>> installed in sys-firewall's template. It looks like your fedora template
>> lack tar (or the update can't find it). No idea why though, IIRC tar is
>> installed by default in qubes templates.
>
>
>
>
>
>
>
> Yup looks like tar is missing from template.  Damned if I know how it got removed,  it's the repo template of fedora 28 and I've only installed software to it, not removed.

That's indeed strange. Maybe a package you've installed has
removed/deprecated tar (could be a bug in rpm packaging). Have a look
/var/log/dnf.rpm.log, maybe you'll find the offender.