Re: [qubes-users] Integrate existing VirtualBox VM into Qubes

[Günter Zöchbauer]

On Wednesday, February 5, 2020 at 4:55:54 PM UTC+1, unman wrote:
>
>
> It would be helpful to know which packages you installed. 
> When I do this I install the minimum set of packages needed. 
> Fortunately, you do have a clone to fall back on. 
>

I wasn't able to figure out yet what the minimum set of packages is.
The description of the individual packages is quite minimalistic and I 
haven't yet found any information about what packages are required for what 
functionality.

I already started building my work environment in a template based VM and I 
don't plan to invest more time into integrating my old VM.
Thanks for your support anyway.

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Re: [qubes-users] Machine reboots when I log in

[Günter Zöchbauer]

On Wednesday, February 5, 2020 at 3:32:57 PM UTC+1, Claudia wrote:
>
>
> You can try adding noreboot=1 to the Xen command line, and look for any 
> console output when it crashes. 
>

Just for others that might stumble upon this thread

The Xen command line is GRUB_CMDLINE_XEN_DEFAULT in /etc/default/grub
and https://groups.google.com/d/msg/qubes-users/uNp2mc3ZZx4/KJ1d_TPZDwAJ 
explains how to update Grub in Fedora

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[qubes-users] Re: How to use the USB modem HUAWEI E3372h to connect to the internet in Qubes OS 4.0.3 ?

[brendan . hoar]

On Sunday, February 2, 2020 at 1:06:45 PM UTC, M wrote:
>
> I can’t figure out how I can use the USB modem HUAWEI E3372h to connect to 
> the internet in Qubes OS 4.0.3. 
>

So having watched these threads over the past week, I have some comments:

First, you have a very finicky device. The mode issue needs to be resolved. 
Depending upon the template (fedora/debian) and version (-xx) there is very 
likely an executable you can install via apt or dnf in a template to 
control it. 

Second, *USB-connected* *network* devices are often difficult get working 
in Qubes because of the use of sys-usb to "virtually" connect the device to 
your "network" VM using the "usbip" stack. The issues arise due to defects 
or unsupported functions in the linux usbip stack (not Qubes), which make 
things fail. 

In particular, I have found that a device that can reconfigure itself to 
appear to change type is likely not going to work with usbip.

Therefore: my recommendation is to avoid utilizing usbip at all, which 
means avoiding the usb-attach/usb-detach features of Qubes entirely (that 
is, avoid managing this device using qvm-usb and/or the device widget).

You can either make your current sys-usb into a provides-network VM 
(easier, but not the way I'd go...unless I already devices dependent on 
that config) or use the salt feature to uninstall the entire sys-usb 
feature (removing the sys-usb VM) and instead manually assign the entire 
usb controller to sys-net, utilizing qvm-pci in dom0 to attach the pcie 
device.

That way, you're only dealing with issues in one VM which you can treat as 
a regular fedora or debian install. There are likely existing resources 
that can tell you how to manage the mode switch of that device with that 
version of fedora or debian.

That's all I have.
Brendan

PS - the second approach, removing sys-usb altogether, assumes you don't 
have a USB-based keyboard or mouse (or other important peripherals) that 
you've set up to work through sys-usb.

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Re: Re: [qubes-users] How to use the USB modem HUAWEI E3372h to connect to the internet in Qubes OS 4.0.3 ?

[Steve Coleman]

On 2020-02-04 16:00, M E wrote:
*APL external email warning: *Verify sender 
qubes-users+bncbdzmb4gysmcbbf5x47yqkgqetesd...@googlegroups.com before 
clicking links or attachments


tir. 4. feb. 2020 kl. 20.15 skrev M E >:


tir. 4. feb. 2020 kl. 00.26 skrev Frank mailto:q5wrm4n...@snkmail.com>>:



On 3. Feb 2020, at 19:10, M E anneeyr...@gmail.com
 wrote:
man. 3. feb. 2020 kl. 06.59 skrev Frank
mailto:q5wrm4n...@snkmail.com>>:



On 3. Feb 2020, at 01:07, M E anneeyr...@gmail.com
 wrote:

<7A330E21-63FF-420D-9745-EF562F243634.jpeg>
If you can’t see the picture, here is a link to it:


https://13366229192823780453.googlegroups.com/attach/100126185e473c/4B89147B-20D5-40EE-A9BB-C71175811C5E.jpeg?part=0.1=1=ANaJVrECT01L2y8o5GwqdnJROLrBq8aKok0PabHMta-x2aY0Ob1KwhJoE_Snqv2pAtXYHNzEbvoZ7nyYlTG0CRXzUxozMo_uhBFSozVSFPdSHxms06amRS4

I got the “dmesg”-output by logging in to the root account and
use the dom0-terminal. I couldn’t run the command in a dom0
terminal when I logged in as a user.

I got this answer at “www.draisberghof.de
”:

“The cdc_ether driver has bound to your dongle, has created an
eth0 device which immediately got auto renamed to enp0s20f0u10
and this device should be visible under Mobile Broadband in
NetworkManager.
There are 3 required setting in NetworkManager for a Mobile
Broadband connection and they are Country, Provider, APN where
after you will get a connection.
If you don't then it is not a question for this forum,
usb_modeswitch has done what it should do.”

Then the problem seems to be related to either ModemManager,
NetworkManager or Qubes OS as I know the USB modem works.

According to this page (link:

https://distrowatch.com/table.php?distribution=qubes=true=4.0.3#pkglist
 )
Qubes OS 4.0.3 comes with these packages:

  • ModemManager-glib-1.6.4-1.fc25.x86_64.rpm

  •  NetworkManager-1.4.6-1.fc25.x86_64.rpm
  •  NetworkManager-glib-1.4.6-1.fc25.x86_64.rpm
  •  NetworkManager-libnm-1.4.6-1.fc25.x86_64.rpm
  •  NetworkManager-team-1.4.6-1.fc25.x86_64.rpm
  •  NetworkManager-wifi-1.4.6-1.fc25.x86_64.rpm

The latest version of:
     ModemManager is 1.12.0
     NetworkManager is 1.22.4


Here we are with a basic problem in your understanding of how
Qubes works... ;-)

If you got this dmesg output in a dom0 terminal, this is the
worst place possible this USB stick can show up.

A Qubes system usually has a sys-net VM that gets all network
devices assigned, so they won‘t show up in dom0 and pose a
security risk there, since dom0 controls everything and you
don’t want to give anybody a chance to get into dom0 and take
control of it. That is - by the way - also the reason, why there
is no network connection available in dom0, even in fully
functional systems.

Most Qubes systems also have a sys-usb VM that will get assigned
all the USB controllers to get those away from dom0 as well. To
use any of those assigned devices, the VM having those devices
assigned to must be running.

There is also the possibility to combine sys-usb and sys-net
into one VM. Having an USB-Stick providing a network interface,
this might be a good idea.

Anyway, once you assigned the USB controller :00:14.1 to one
of those VMs, your modem will show up in that VM and not anymore
in dom0. This VM will have a far newer version of Linux running
(i.e. Fedora 30 or Debian 10) than dom0 (Fedora 25 in Qubes
4.0.3) and thus far newer versions of NetworkManager and
ModemManager available than in dom0.

If any of the above is completely over your head, I suggest that
you read some of the Qubes OS documentation before going on,
since the above is the fundamental concept of Qubes...

Regards, Frank

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Re: [qubes-users] Machine reboots when I log in

[Günter Zöchbauer]

On Wednesday, February 5, 2020 at 3:32:57 PM UTC+1, Claudia wrote:
>
> February 5, 2020 7:34 AM, "Günter Zöchbauer"  > wrote:
>
> > When I come back to my computer
> > 
> > and log in on the dom0 lock screen, the machine often just reboots.
> > 
> > Has anybody seen this?
> > Any suggestions how to debug?
>
> You can try journalctl -b -1 -e, but it's probably not syncing the journal 
> before it reboots. 
>
> Does it seem to freeze for five seconds before it reboots, or does it 
> reboot immediately?
>
> Does this also happen when you have no VMs running? For me, Xen seems to 
> reboot most often when it's low on memory.
>
> You can try adding noreboot=1 to the Xen command line, and look for any 
> console output when it crashes. If you're up to the task, you could try 
> enabling kernel crash dumps: 
> https://help.ubuntu.com/lts/serverguide/kernel-crash-dump.html 
>

Thanks for the suggestions.

I'll check journalctl the next time it happens and also pay attention if 
there is a delay.

I had more than one VM running every time.

Memory in dom0: is currently with a typical workload 
KiB Mem :  3943504 total,   569480 free,  2147124 used,  1226900 buff/cache

journalctl shows
balance_when_enough_memory(xen_free_memory=27261583, 
total_mem_pref=12447403622.42, total_available_memory=10625527248.58
left_memory=4055249111 acceptors_count=6

The machine has 32G and it shouldn't use much that yet.

It didn't even look like a crash. It looked like a proper reboot.

I have added noreboot=1 and will report back if I find anything new.

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Re: [qubes-users] How to install DisplayLink USB to HDMI converter

[Omar Morando]

Hi Matthis,
thanks a lot for your help.

Ok, I use Qubes for security reasons and I don't want to compromise the 
security of dom0, even if the second external monitor is important for working 
better.

I prefer to wait for a different solution, hoping that someone somewhere will 
be able to use displaylink while maintaining system security.

Thanks again, ciao

Omar Morando
E // omar.mora...@hotmail.it
P // +39-348-4024361
On Feb 4 2020, at 9:39 am, Matthias Horn  wrote:
hi,

I got this working on my laptop (dual 4K monitors), but It’s complicated, and 
compromised the security of dom0 (if that’s okay for you depends on your 
reasons for using Qubes)

I’ve sketched out the steps i took below, these intentionally are not step by 
step instructions. It’s fragile and you will probably have to do some 
debugging...

- ensure that the USB3 controller that you plug the display link adapter into 
is attached to Dom0 and not Sys-USB (I had to completely disable my sys-usb 
wich breaks other stuff).
This opens up a huge attack surface on Dom0. Only do this if you trust all 
the USB devices you’ll be plugging in...


- I needed to rebuild and install the display link and evdi RPMs. I grabbed the 
latest src.rpm got each and then rpmbuild in Dom0 to get installable packages 
(installing all the build and install dependencies with Qubes-Dom0-update).

This is a terrible idea, I should have used mock in a domU to build the RPMs... 
it’s also not ideal to be installing an untrusted binary blob (display link) in 
dom0

- (probably related to driving 16billion pixels...) I regularly have to restart 
X before I can use the extra screens (stop all vms, remove the X shared memory 
file, restart X, setup the extra screens, start the VMs as needed)

It’s probably  possible to do this in a cleaner way, run display link in the 
sys-usb qube and share the EVDI virtual frame buffer devices between Dom0 and 
Sys-USB, but the later part is probably hard to get working reliably...

Hope this is helpful,

‘Tias


Sent from my iPhone

On 3 Feb 2020, at 09:33, Omar Morando  wrote:


Hello,
I'm a Qubes user, I'm using version 4.0.1 on my Dell Inspiron 13 5378 with I-7, 
16 GB of RAM, 2 TB SSD and everything works well.

I need to use a USB 3.0 HDMI converter for an external monitor, in addition to 
the HDMI port built into the laptop. I have read a couple of topics from Reddit 
about this RPM driver for Fedora but nobody has managed to make it work:
https://github.com/displaylink-rpm/displaylink-rpm
Do you have any suggestions? Do you know if someone has managed to install it 
or if there is a specific version for Qubes? Searching the net, I did not find 
any other information.
If you give me support I can do tests that can then be made public for other 
users.
Thank you


Omar Morando
E // omar.mora...@hotmail.it
P // +39-348-4024361

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Re: [qubes-users] Integrate existing VirtualBox VM into Qubes

[unman]

On Wed, Feb 05, 2020 at 02:52:03AM -0800, G??nter Z??chbauer wrote:
> 
> 
> On Wednesday, February 5, 2020 at 10:45:48 AM UTC+1, G??nter Z??chbauer wrote:
> >
> > On Friday, January 31, 2020 at 4:11:56 PM UTC+1, unman wrote:
> >>
> >> On Fri, Jan 31, 2020 at 04:20:31AM -0800, G??nter Z??chbauer wrote: 
> >> > 
> >> > > 
> >> > > 
> >> > > If you are using Debian 10, you can add the repository to the qube, 
> >> > > update, and then select the qubes packages that you want. I suggest 
> >> > > using aptitude, as it should make the process somewhat clearer. 
> >> > > 
> >> > > You can get the repository details from 
> >> > > /etc/apt/sources.list.d/qubes-r4.list 
> >> > > on any of your debian-10 based qubes. 
> >> > > 
> >> > > 
> >> > Thanks, that was the info I was looking for. 
> >> >   
> >> > 
> >> > > There is *every* chance that you may bork your qube playing about 
> >> with 
> >> > > packages, so I suggest you take a clone before you start, so you 
> >> always 
> >> > > have a clean qube to fall back on. 
> >> > > 
> >> > > I can recreate it from the original VM again anyway, but I found the 
> >> clone 
> >> > feature handy already. 
> >> > Thanks for the suggestion. 
> >> >   
> >>
> >> Suggest you dont use any of the global packages like "recommended" - 
> >> pick and choose from the base packages instead. 
> >> At minimum you should have copy/paste working. 
> >>
> >
> > I tried that now but run into problems.
> >
> > When I run an application from the dom0 menu, the window shows only weird 
> > patterns that change when I resize the window
> > like if the wrong driver for a graphics adapter were used.
> >
> > When I start the VM the Debian boot screen with the console output about 
> > the boot progress is shown,
> > but when it's done booting this window disappears.
> >
> > Is there a way to prevent this window from disappearing?
> >
> >
>  Ok, I found that one.
> "Run in debug mode" does that. I thought I already tried that before.
> Also qvm-start-gui --force-stubdomain showed that window.
> 
> X isn't started in that window anymore and it shows only the output from 
> the boot progress, so this doesn't help.
> 

It would be helpful to know which packages you installed.
When I do this I install the minimum set of packages needed.
Fortunately, you do have a clone to fall back on.

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Re: [qubes-users] Machine reboots when I log in

[Claudia]

February 5, 2020 7:34 AM, "Günter Zöchbauer"  wrote:

> When I come back to my computer
> 
> and log in on the dom0 lock screen, the machine often just reboots.
> 
> Has anybody seen this?
> Any suggestions how to debug?

You can try journalctl -b -1 -e, but it's probably not syncing the journal 
before it reboots. 

Does it seem to freeze for five seconds before it reboots, or does it reboot 
immediately?

Does this also happen when you have no VMs running? For me, Xen seems to reboot 
most often when it's low on memory.

You can try adding noreboot=1 to the Xen command line, and look for any console 
output when it crashes. If you're up to the task, you could try enabling kernel 
crash dumps: https://help.ubuntu.com/lts/serverguide/kernel-crash-dump.html

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Re: [qubes-users] cannot find if my hardware will meet the min requirements for the latest qubes os' install - need some help!

[Claudia]

February 4, 2020 4:40 PM, "unman"  wrote:

> At first setup do NOT choose to create a sys-sub - I've done it and it
> is an unfortunate mistake to make.

Last time I did a USB install (R4.1), the option was greyed out and 
"Unavailable because the root filesystem is on a USB device" or something like 
that :)

Honestly I don't recommend using the sys-usb init config option at all unless 
you're sure it's going to work, i.e. you've used sys-usb on that machine 
before. You should do the installation without sys-usb and get everything else 
working, then enable it later using the instructions, because if it causes 
problems it's *much* easier to attribute to sys-usb. If you have it enabled 
from the start, it's not easy to see the cause-effect relationship. Just my 
opinion.

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Re: [qubes-users] Re: USB keyboard and mouse no longer work

[galthop]

Thank you. Disabling the sys-usb autostart is perfect. I can start it when I 
want to use my scanner.

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Re: [qubes-users] Integrate existing VirtualBox VM into Qubes

[Günter Zöchbauer]

On Wednesday, February 5, 2020 at 10:45:48 AM UTC+1, Günter Zöchbauer wrote:
>
> On Friday, January 31, 2020 at 4:11:56 PM UTC+1, unman wrote:
>>
>> On Fri, Jan 31, 2020 at 04:20:31AM -0800, G??nter Z??chbauer wrote: 
>> > 
>> > > 
>> > > 
>> > > If you are using Debian 10, you can add the repository to the qube, 
>> > > update, and then select the qubes packages that you want. I suggest 
>> > > using aptitude, as it should make the process somewhat clearer. 
>> > > 
>> > > You can get the repository details from 
>> > > /etc/apt/sources.list.d/qubes-r4.list 
>> > > on any of your debian-10 based qubes. 
>> > > 
>> > > 
>> > Thanks, that was the info I was looking for. 
>> >   
>> > 
>> > > There is *every* chance that you may bork your qube playing about 
>> with 
>> > > packages, so I suggest you take a clone before you start, so you 
>> always 
>> > > have a clean qube to fall back on. 
>> > > 
>> > > I can recreate it from the original VM again anyway, but I found the 
>> clone 
>> > feature handy already. 
>> > Thanks for the suggestion. 
>> >   
>>
>> Suggest you dont use any of the global packages like "recommended" - 
>> pick and choose from the base packages instead. 
>> At minimum you should have copy/paste working. 
>>
>
> I tried that now but run into problems.
>
> When I run an application from the dom0 menu, the window shows only weird 
> patterns that change when I resize the window
> like if the wrong driver for a graphics adapter were used.
>
> When I start the VM the Debian boot screen with the console output about 
> the boot progress is shown,
> but when it's done booting this window disappears.
>
> Is there a way to prevent this window from disappearing?
>
>
 Ok, I found that one.
"Run in debug mode" does that. I thought I already tried that before.
Also qvm-start-gui --force-stubdomain showed that window.

X isn't started in that window anymore and it shows only the output from 
the boot progress, so this doesn't help.

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Re: [qubes-users] Integrate existing VirtualBox VM into Qubes

[Günter Zöchbauer]

On Friday, January 31, 2020 at 4:11:56 PM UTC+1, unman wrote:
>
> On Fri, Jan 31, 2020 at 04:20:31AM -0800, G??nter Z??chbauer wrote: 
> > 
> > > 
> > > 
> > > If you are using Debian 10, you can add the repository to the qube, 
> > > update, and then select the qubes packages that you want. I suggest 
> > > using aptitude, as it should make the process somewhat clearer. 
> > > 
> > > You can get the repository details from 
> > > /etc/apt/sources.list.d/qubes-r4.list 
> > > on any of your debian-10 based qubes. 
> > > 
> > > 
> > Thanks, that was the info I was looking for. 
> >   
> > 
> > > There is *every* chance that you may bork your qube playing about with 
> > > packages, so I suggest you take a clone before you start, so you 
> always 
> > > have a clean qube to fall back on. 
> > > 
> > > I can recreate it from the original VM again anyway, but I found the 
> clone 
> > feature handy already. 
> > Thanks for the suggestion. 
> >   
>
> Suggest you dont use any of the global packages like "recommended" - 
> pick and choose from the base packages instead. 
> At minimum you should have copy/paste working. 
>

I tried that now but run into problems.

When I run an application from the dom0 menu, the window shows only weird 
patterns that change when I resize the window
like if the wrong driver for a graphics adapter were used.

When I start the VM the Debian boot screen with the console output about 
the boot progress is shown,
but when it's done booting this window disappears.

Is there a way to prevent this window from disappearing?

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Re: [qubes-users] Integrate existing VirtualBox VM into Qubes

[Günter Zöchbauer]

On Friday, January 31, 2020 at 1:06:37 PM UTC+1, unman wrote:

>
> Please try not to top-post - scroll to the bottom of the message you are 
> replying to before starting typing. 
>
> If you are using Debian 10, you can add the repository to the qube, 
> update, and then select the qubes packages that you want. I suggest 
> using aptitude, as it should make the process somewhat clearer. 
>
> You can get the repository details from 
> /etc/apt/sources.list.d/qubes-r4.list 
> on any of your debian-10 based qubes. 
>
> There is *every* chance that you may bork your qube playing about with 
> packages, so I suggest you take a clone before you start, so you always 
> have a clean qube to fall back on. 
>
> unman 
>

For others who might stumble upon this post
I found 
https://github.com/QubesOS/qubes-issues/issues/4212#issuecomment-420254317 
very helpful for getting the qubes debian repo added.

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