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On Tue, Nov 22, 2016 at 02:31:38AM -0800, Fabrizio Romano Genovese wrote:
> Thank you very much, your solution worked (actually I had to give  
> virsh -c xen:/// undefine trim-fedora-23 
> and not
> virsh -c xen:/// undefine fedora-23-fstrim
> and then I had to manually remove the trim-fedora-23 files in 
> /var/lib/qubes/appvm).
> 
> The problem started when I decided to make a little script to automatize the 
> trim process for all my templates at once, but it is evident that I must have 
> made some mistake while doing it :D
> 
> Anyway, a "global trim function", as well as a "global update function" would 
> be very helpful, updating/trimming of templates can be quite time consuming!

Global update is possible using salt management stack. See here:
https://groups.google.com/d/msg/qubes-users/UG1OiPXWrhs/LqYoSC2WBgAJ

I think it should be even possible using one-liner like this:

    qubesctl --templates state.single pkg.uptodate '' refresh=True

Uhm, actually it will not work right now, because qubesctl tool have an
"optimization" to not call into VMs when no states are defined in top
file for it (the configuration mentioned in link above). But it should
be easy to fix:
https://github.com/QubesOS/qubes-issues/issues/2451

Currently there is no similarly easy option "global trim", but on the
other hand, it will not be needed anymore in Qubes 4.0 when using LVM
storage.

- -- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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