how to switch Background Dom0 Qubes 4.0

[English USA]

how can I change the screen background of the official Qubes OS 4.? Please help me, I am new to the IT world. maybe someone knows how to copy in Qubes 4 directly to Dom0 or connect the USB stick directly to Dom0? ask for instructions with a detailed explanation. Thank you in advance !;)

[Steve Coleman]

On 10/15/18 6:45 PM, English USA wrote:
> how can I change the screen background of the official Qubes OS 4.?

Right click on the desktop and from the menu select "Desktop Settings"

> Please help me, I am new to the IT world. maybe someone knows how to
> copy in Qubes 4 directly to Dom0 or connect the USB stick directly to
> Dom0? ask for instructions with a detailed explanation. Thank you in
> advance !;)

To mount a USB stick in dom0, insert the USB stick, and then open up
nautilus in Dom0 (Menu/System Tools/Files) and look on the left pane for
your USB stick. If you do not see a label for it there, the stick may be
formatted in exFat format which may need some extra drivers in dom0 in
order to read it.

Be very cautious what you allow to attach to or run in dom0.


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[unman]

On Mon, Oct 15, 2018 at 07:05:54PM -0400, Steve Coleman wrote:
> On 10/15/18 6:45 PM, English USA wrote:
> > how can I change the screen background of the official Qubes OS 4.?
>
> Right click on the desktop and from the menu select "Desktop Settings"
>
> > Please help me, I am new to the IT world. maybe someone knows how to
> > copy in Qubes 4 directly to Dom0 or connect the USB stick directly to
> > Dom0? ask for instructions with a detailed explanation. Thank you in
> > advance !;)
>
> To mount a USB stick in dom0, insert the USB stick, and then open up
> nautilus in Dom0 (Menu/System Tools/Files) and look on the left pane for
> your USB stick. If you do not see a label for it there, the stick may be
> formatted in exFat format which may need some extra drivers in dom0 in order
> to read it.
>
> Be very cautious what you allow to attach to or run in dom0.

Steve's advice wont work if you are using a usbVM, like sys-usb.
Have a look at www.qubes-os.org/doc/usb/ which will explain how to use a
USB stick in a qube.
It's good practice not to attach USB sticks directly to dom0.
It's also good practice not to copy untrusted files in to dom0. That's
why Qubes make it relatively difficult.
It isn't impossible though: have a look at
www.qubes-os.org/doc/copy-from-dom0/ which tells you how to do this.

[qubes...@gmail.com]

Ok what is wrong herr in my command ?
$ qvm-run [- -pass-io] Save-Treasure ‘cat /home/user/file.jpg’ > ‘/home/usersname/order’

Save-Treasure - is my firtual maschine
Usersname - is my user Name
Order = order for the new file in the dom0
File.jpg = file who must go to dom0

I become a zero file with 0 bytes with this command, please help me for improve me command.

thank you in advance ;)

[Christophe Vial]

Not really a good idea to attach or copy anything to Dom0.
The safest way is probably to take a screenshot of the picture you want to use as wallpaper since screenshots end in Dom0.





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[unman]

Obviously you should not include the square brackets [], and you have a
rogue space: should be qvm-run --pass-io Save.........

If you are concerned about importing an image in to dom0 you can always
sanitize it with qvm-convert-img, a great but little referenced tool
ideal for this use case.

[qubes...@gmail.com]

Thanks all for the Answers, I have make a screenshot and make it to background ;)