can qemu be used from the container? #11

ykoehler · 2017-03-17T17:52:15Z

I was unable to get the command "runqemu qemux86 ramfs" to work.

Is there a way to get it supported?

rewitt1 · 2017-03-17T18:23:38Z

Hi Yannick,

I'm assuming you are getting an error saying it can't create a tap device? There are a couple of ways around this if you're on Linux. But assuming you are using a new enough version of poky/oe-core, runqemu should support "slirp" which would even work if using MacOS or Windows. And it is the simplest to try.

Try the command below and see if it works:

runqemu qemux86 ramfs slirp nographic

The slirp argument says to use usermode networking which doesn't need a tap device. The nographic will prevent an error from SDL saying it can't connect to the display, and cause the output to just go to your console.

If this works, let us know. And if you have more issues please ask. Because these kind of questions we'll try to answer in the wiki as well.

ykoehler · 2017-03-17T19:14:50Z

ykoehler@yk-z620 ~/HPE-Aruba-ap-unified/poky $ build.sh "TEMPLATECONF=meta-uap/conf source oe-init-build-env && runqemu qemux86 ramfs slirp nographic"
latest: Pulling from hpe-aruba-ap-unified/poky-container
Digest: sha256:d5198553c2efa98c4fa1f94d74258bdacc6e17973c2b9af9938d0d4771183562
Status: Image is up to date for hub.docker.hpecorp.net/hpe-aruba-ap-unified/poky-container:latest

Shell environment set up for builds.

You can now run 'bitbake '

runqemu - INFO - Assuming MACHINE = qemux86
runqemu - INFO - Running MACHINE=qemux86 bitbake -e...
runqemu - INFO - MACHINE: qemux86
runqemu - INFO - DEPLOY_DIR_IMAGE: /workdir/build/tmp/deploy/images/qemux86
runqemu - INFO - Running ls -t /workdir/build/tmp/deploy/images/qemux86/*.qemuboot.conf...
runqemu - INFO - CONFFILE: /workdir/build/tmp/deploy/images/qemux86/core-image-minimal-qemux86-20170317182653.qemuboot.conf
Traceback (most recent call last):
File "/workdir/scripts/runqemu", line 1019, in
ret = main()
File "/workdir/scripts/runqemu", line 1007, in main
config.check_and_set()
File "/workdir/scripts/runqemu", line 545, in check_and_set
check_tun()
File "/workdir/scripts/runqemu", line 102, in check_tun
raise Exception("TUN control device %s is unavailable; you may need to enable TUN (e.g. sudo modprobe tun)" % dev_tun)
Exception: TUN control device /dev/net/tun is unavailable; you may need to enable TUN (e.g. sudo modprobe tun)

It seems that runqemu call "check_tun" even if I specify the slirp option.

bavery22 · 2017-03-17T21:57:03Z

Hi, I just did runqemu qemux86 qemux86-64 slirp nographic and it worked. I was using the following poky commitish on master: 7e0985bab68547f946163828a16beab7542fca2e

…

---- I had to add no graphic as the change to enable vnc graphics on the poky containers has not made it in yet, though the necessary infrastructure is there.

-b an intel employee

On Fri, Mar 17, 2017 at 12:14 PM, Yannick Koehler ***@***.***> wrote: ***@***.*** ~/HPE-Aruba-ap-unified/poky $ build.sh "TEMPLATECONF=meta-uap/conf source oe-init-build-env && runqemu qemux86 ramfs slirp nographic" latest: Pulling from hpe-aruba-ap-unified/poky-container Digest: sha256:d5198553c2efa98c4fa1f94d74258b dacc6e17973c2b9af9938d0d4771183562 Status: Image is up to date for hub.docker.hpecorp.net/hpe- aruba-ap-unified/poky-container:latest Shell environment set up for builds. You can now run 'bitbake ' runqemu - INFO - Assuming MACHINE = qemux86 runqemu - INFO - Running MACHINE=qemux86 bitbake -e... runqemu - INFO - MACHINE: qemux86 runqemu - INFO - DEPLOY_DIR_IMAGE: /workdir/build/tmp/deploy/ images/qemux86 runqemu - INFO - Running ls -t /workdir/build/tmp/deploy/ images/qemux86/*.qemuboot.conf... runqemu - INFO - CONFFILE: /workdir/build/tmp/deploy/ images/qemux86/core-image-minimal-qemux86-20170317182653.qemuboot.conf Traceback (most recent call last): File "/workdir/scripts/runqemu", line 1019, in ret = main() File "/workdir/scripts/runqemu", line 1007, in main config.check_and_set() File "/workdir/scripts/runqemu", line 545, in check_and_set check_tun() File "/workdir/scripts/runqemu", line 102, in check_tun raise Exception("TUN control device %s is unavailable; you may need to enable TUN (e.g. sudo modprobe tun)" % dev_tun) Exception: TUN control device /dev/net/tun is unavailable; you may need to enable TUN (e.g. sudo modprobe tun) It seems that runqemu call "check_tun" even if I specify the slirp option. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ACkxjZJXnR-lOgUBVKSJUNZQq_gU1E2Sks5rmtuqgaJpZM4Mg5-6> .

rewitt1 · 2017-03-20T19:55:08Z

Yannick,

Which version of poky are you based on? There are ways we could get it to work, but before I suggest something, I want to make sure I can try and verify it works.

ykoehler · 2017-03-20T22:36:31Z

So, did some small digging, it works for you because you probably have the tun module loaded on your host. I do not, as such, whenever I try to launch qemu it says that the /dev/net/tun device is missing, because the runqemu script calls check_tun even if you specify to use slirp. I edited the script to comment out this sanity check_tun function and now I am able to get this working within docker.

ykoehler · 2017-03-20T23:54:00Z

Using morty at this time.

…

On Mon, Mar 20, 2017 at 3:55 PM Randy Witt ***@***.***> wrote: Yannick, Which version of poky are you based on? There are ways we could get it to work, but before I suggest something, I want to make sure I can try and verify it works. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ACnOj-IEV81Y54Fh3ntinf1jYQ-SN9zIks5rntmcgaJpZM4Mg5-6> .

bavery22 · 2017-03-21T23:30:54Z

I see. Yes, in master it now has: if not self.slirp_enabled: check_tun() But morty doesn't have the conditional. Thanks for the targeted feedback!!

…

-Brian an Intel employee On Mon, Mar 20, 2017 at 4:54 PM, Yannick Koehler <notifications@github.com> wrote:

Using morty at this time. On Mon, Mar 20, 2017 at 3:55 PM Randy Witt ***@***.***> wrote: > Yannick, > > Which version of poky are you based on? There are ways we could get it to > work, but before I suggest something, I want to make sure I can try and > verify it works. > > — > You are receiving this because you authored the thread. > Reply to this email directly, view it on GitHub > <#11# issuecomment-287878474>, > or mute the thread > <https://github.com/notifications/unsubscribe-auth/ACnOj- IEV81Y54Fh3ntinf1jYQ-SN9zIks5rntmcgaJpZM4Mg5-6> > . > — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#11 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ACkxjbFSLcnqEE_R0y5Tc0J60f-Z7Kw9ks5rnxGZgaJpZM4Mg5-6> .

hossein1100 · 2021-08-03T17:57:28Z

Hi
Im trying to run windows10 to my android phon by qemu system x86_64 headlees in termux
But i get this error:
qemu-system-x86_64: Slirp: Failed to send packet, ret: -1

Enyone can help me plz?

Dexus · 2022-01-27T11:37:01Z

Note if you add --device=/dev/tun to your docker run your should be able to remove slirp from the command

DavidAntliff · 2022-07-05T00:43:04Z

Note if you add --device=/dev/tun to your docker run your should be able to remove slirp from the command

I think it's --device=/dev/net/tun for some systems?

Also, setting up the tap interface requires root access in the container, via sudo, but pokyuser in the container isn't able to use sudo, so I'm not sure where that leaves us.

lgrosz · 2023-04-01T13:51:40Z

I am having the same issue at @DavidAntliff , I get prompted for the password for pokyuser

user@host$ docker run --rm -it -v $(pwd):$(pwd) --device /dev/net/tun crops/poky --workdir=$(pwd)
pokyuser@e95ea229390b:/home/logan/projects/yocto_crops$ cd poky/
pokyuser@e95ea229390b:/home/logan/projects/yocto_crops/poky$ source oe-init-build-env 

### Shell environment set up for builds. ###

You can now run 'bitbake <target>'

Common targets are:
    core-image-minimal
    core-image-full-cmdline
    core-image-sato
    core-image-weston
    meta-toolchain
    meta-ide-support

You can also run generated qemu images with a command like 'runqemu qemux86-64'.

Other commonly useful commands are:
 - 'devtool' and 'recipetool' handle common recipe tasks
 - 'bitbake-layers' handles common layer tasks
 - 'oe-pkgdata-util' handles common target package tasks
pokyuser@e95ea229390b:/home/logan/projects/yocto_crops/poky/build$ run qemu
bash: run: command not found
pokyuser@e95ea229390b:/home/logan/projects/yocto_crops/poky/build$ renqemu
bash: renqemu: command not found
pokyuser@e95ea229390b:/home/logan/projects/yocto_crops/poky/build$ runqemu
runqemu - INFO - Running bitbake -e ...
runqemu - INFO - Continuing with the following parameters:
KERNEL: [/home/logan/projects/yocto_crops/poky/build/tmp/deploy/images/qemux86-64/bzImage]
MACHINE: [qemux86-64]
FSTYPE: [ext4]
ROOTFS: [/home/logan/projects/yocto_crops/poky/build/tmp/deploy/images/qemux86-64/core-image-weston-qemux86-64-20230401065337.rootfs.ext4]
CONFFILE: [/home/logan/projects/yocto_crops/poky/build/tmp/deploy/images/qemux86-64/core-image-weston-qemux86-64-20230401065337.qemuboot.conf]

runqemu - INFO - Setting up tap interface under sudo
[sudo] password for pokyuser:

ykoehler closed this as completed Mar 20, 2017

hossein1100 mentioned this issue Aug 3, 2021

Qemu error crops/docker-win-mac-docs#8

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can qemu be used from the container? #11

can qemu be used from the container? #11

ykoehler commented Mar 17, 2017

rewitt1 commented Mar 17, 2017 •

edited

ykoehler commented Mar 17, 2017

bavery22 commented Mar 17, 2017 via email

rewitt1 commented Mar 20, 2017

ykoehler commented Mar 20, 2017

ykoehler commented Mar 20, 2017 via email

bavery22 commented Mar 21, 2017 via email

hossein1100 commented Aug 3, 2021

Dexus commented Jan 27, 2022

DavidAntliff commented Jul 5, 2022

lgrosz commented Apr 1, 2023 •

edited

can qemu be used from the container? #11

can qemu be used from the container? #11

Comments

ykoehler commented Mar 17, 2017

rewitt1 commented Mar 17, 2017 • edited

ykoehler commented Mar 17, 2017

Shell environment set up for builds.

bavery22 commented Mar 17, 2017 via email

rewitt1 commented Mar 20, 2017

ykoehler commented Mar 20, 2017

ykoehler commented Mar 20, 2017 via email

bavery22 commented Mar 21, 2017 via email

hossein1100 commented Aug 3, 2021

Dexus commented Jan 27, 2022

DavidAntliff commented Jul 5, 2022

lgrosz commented Apr 1, 2023 • edited

rewitt1 commented Mar 17, 2017 •

edited

lgrosz commented Apr 1, 2023 •

edited