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Tails does not boot in Qubes HVM #1343

Closed adrelanos closed 8 years ago

adrelanos commented 9 years ago

I've downloaded Tails 1.6. Stored in my iso-download (debian-8 based) AppVM. Then followed the https://www.qubes-os.org/en/doc/hvm-create/ instructions.

Initially Tails boots. You can see the Tails boot menu. Whatever you choose, the default option or failsafe, same result. Where it hangs is a black screen only showing _.

It doesn't bother me personally too much. It's very low on my wishlist. So is this worth of being reported? I am just wondering if there could be a more general underlying issue that would be worth fixing.

marmarek commented 9 years ago

I guess it's about ancient qemu we have in stub domain. Unfortunately newer version (aka "qemu upstream") requires major stub domain rework, which hadn't been done yet (but was planned since AFAIR Xen 4.4). Eric Shelton tried to encourage Xen people to work on it, also providing some help there. But as for today, Xen 4.6 still doesn't support qemu upstream in stub domain.

Anyway this problem probably can be fixed by Tails by some Xorg configuration (or adding another driver). Not sure if worth reporting, what is the Tails statement about using it in VM?

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?

adrelanos commented 9 years ago

what is the Tails statement about using it in VM?

https://tails.boum.org/doc/advanced_topics/virtualization/index.de.html

unman commented 9 years ago

@adrelanos Explicitly setting vga mode at boot should fix this. Try appending vga=792

adrelanos commented 9 years ago

That workaround works.

adrelanos commented 9 years ago

Booted with smaller resolution, vga=788. But that workaround still leaves one with an unusable Tails. It boots up until the graphical target just fine. The problem is, that the bottom side of the window reaches below dom0's taskbar. So for example the "ok" button in Tails launcher outside the visible monitor area.

adrelanos commented 9 years ago

Existing general Qubes OS ticket at Tails redmine tracker, Try running Tails inside of Qubes OS: https://labs.riseup.net/code/issues/8607

Reported this issue on the tails-dev mailing list, [Tails-dev] Tails fails to run inside Qubes OS: https://mailman.boum.org/pipermail/tails-dev/2015-October/009628.html

marmarek commented 8 years ago

Not sure how to classify this? Should we have some documentation "how to run Tails in Qubes HVM"?

DrWhax commented 8 years ago

I was just trying this out! What a coincidence! On my R3.0 with the vga=788 option, I just get a blank screen and nothing happens. This was with a Tails 1.8.1 release.

Ideally, we should test out the 2.0 beta release that is next on my list of things to do. Hopefully things have improved on Debian Jessie's side, it's slightly more positive from what I understand from the tails-dev mailinglist.

But yes, if we figure out what works with what version, we should create documentation for it!

adrelanos commented 8 years ago

Documenting it isn't possible as no one has figured out yet how to get it into a usable state.

As per what you wrote in https://github.com/QubesOS/qubes-issues/issues/1343#issuecomment-148958062 it's a Xen issue. One you probably won't have priority/time to fix. Not sure what's best to do with such kind of tickets. It's an outstanding issue, good to know, not really fixed, good if found through search engines. I would leave it open with "patches welcome". Or close it if that works better with your issue tracker customs.

adrelanos commented 8 years ago

Seems like @DrWhax and me posted in the exact same minute. This somewhat obsoletes my previous post. Since someone is working on it, perhaps best to leave it open.

DrWhax commented 8 years ago

Well, both the beta of 2.0 and a latest stable release (1.8.1) both don't load, all I get is a black screen. Fiddling with the vga line doesn't do anything to circumvent the issue. I guess we should document that it doesn't work? :)

austin987 commented 8 years ago

@marmarek / @adrelanos what Xen issue? What Xorg driver is needed? Tails is based on Debian, if it's only a missing driver this should be trivial to fix on Tails' end.

adrelanos commented 8 years ago

https://github.com/QubesOS/qubes-issues/issues/1343#issuecomment-148958062

austin987 commented 8 years ago

Yes, I saw that. I was hoping for a Xen bug # or link, and/or the name of the missing Xorg driver, if known.

DrWhax commented 8 years ago

Indeed, this would allow us to build an iso and test again. Any pointer is welcome.

marmarek commented 8 years ago

Does Tails use "quiet" kernel boot option? If so, remove and see kernel messages. Or maybe it fails at X server load time? Having some way to extract X server log would be useful...

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?

DrWhax commented 8 years ago

I just did this with an Tails 2.0~beta1 iso and I get this:

"Probing EDD (edd=off to disable) OK" and then it just hangs.

austin987 commented 8 years ago

@marmarek, yes, it's quiet by default.

I've never used Qubes myself (on my list of things to try soon), is https://www.qubes-os.org/doc/live-usb/ still valid? That would make testing easier for me.

adrelanos commented 8 years ago

Austin English:

I've never used Qubes myself (on my list of things to try soon), is https://www.qubes-os.org/doc/live-usb/ still valid? That would make testing easier for me.

Please don't hijack random tickets for unrelated discussion. No offense intended. Just trying to keep the overview.

mfc commented 8 years ago

just to keep this thread updated, there is online documentation on running Tails in Qubes HVM now: https://garlicgambit.wordpress.com/2016/04/22/how-to-run-tails-from-a-qubes-live-cd and #1969.

andrewdavidwong commented 8 years ago

@unman (https://github.com/QubesOS/qubes-issues/issues/1969#issuecomment-218177725):

I'm amazed #1343 is still open: it was only ever a display problem, for which I gave solution. It's not an issue now.

@adrelanos, @marmarek: Can we close this?

adrelanos commented 8 years ago

@DrWhax can you test and confirm please?

mfc commented 8 years ago

this ticket should shift towards documenting how to do it -- running Tails within an installed instance of Qubes will have slightly different (and shorter) documentation than garlicgambit's documentation, and is vastly more useful since Qubes Live USB is not maintained.

adrelanos commented 8 years ago

Since https://github.com/QubesOS/qubes-doc/pull/154 by @unman was merged, I guess this ticket can be closed.

(For the record: this does not give us amnesic / anti-forensics / Tails-like functionality in Qubes. That is #2024.)

mfc commented 8 years ago

great, closed.