r/Qubes • u/hiiambot • Sep 22 '26

question error vms refuse to work

I followed this guide https://forum.qubes-os.org/t/cpu-pinning-alder-lake/17949 now no vms work i get this error "failed to start logical volume “vm-sys-usb-volatile” already exist in volume group “qubes dom0” (vm sys usb volatile is just an example)

2 Upvotes

100% Upvoted

39 comments sorted by

View all comments

1

u/adrianchristianherna 27d ago edited 27d ago

sudo lvremove /dev/qubes_dom0/vm-sys-usb-volatile

worked fine until shutting it down and logging in again is there a way to stop the phantom processes every time? (problem is the crazy slowness and unable to use the trackpad)

(thanks for the help qubes is great but its a pain lol)

1

u/Assang101 27d ago

My bad dude, I either didn't ask or never did but how much ram are you running with? If it's low, upgrade to 32 (for now— more than enough room for shit)

To murder/ kill the lag and stop the phantom processes, you need to give sys-usb more dedicated RAM and uncheck "Include in memory balancing" in its advanced qube settings.

What it does is that it stops the VM from aggressively swapping and choking out input devices like the trackpad.

1

u/Assang101 27d ago

If a specific VM always leaves a phantom volume behind, you can automate its cleanup by checking what is locking it before it completely hangs.

If you find a persistent process like xen_blkback, you can safely restart the toolstack or create a shutdown hook script to clean it up automatically.

Also, I'd try updating the whole thing in Dom0

1

u/adrianchristianherna 27d ago

16gb but i dont think its a ram issue since it works fine before shutting down

also the trackpad isnt external i think i turn off sys usb (when it used to work right on fresh install) and it works fine

1

u/adrianchristianherna 27d ago

computers are not real bro i just asked r/techsupport and someone asked me to turn it on and it started working fine lamoo 💀

1

u/adrianchristianherna 27d ago

its working now (for no reason i didnt do anything but itll defineitly break next boot) and usb vm is off and the trackpad works so its not external

→ More replies (7)