meta-updater-qemux86-64 and ubuntu 16.04.5 docker image Qemu error about meta-updater-qemux86-64

[pattivacek]

It looks like the call to Popen is failing because of the No such file or directory error. Try running run-qemu-ota with the -n flag to print out the full qemu command line, then verify that the files it references really do exist.

[viktor-mitin]

Hi Patrick,
Please see the output with '-n' key below. The files script references exist.

c@3e31dc934d8e:~/w/myproject/build$ ../meta-updater/scripts/run-qemu-ota -n
Launching core-image-minimal with mac address ca:fe:0e:85:28:3d
To connect via SSH:
 ssh -o StrictHostKeyChecking=no root@localhost -p 2222
To connect to the serial console:
 nc localhost 8990
qemu-system-x86_64 -bios /home/c/w/myproject/build/tmp/deploy/images/qemux86-64/u-boot-qemux86-64.rom -drive file=/home/c/w/myproject/build/tmp/deploy/images/qemux86-64/core-image-minimal-qemux86-64-20190221144001.otaimg,if=ide,format=raw,snapshot=on -serial tcp:127.0.0.1:8990,server,nowait -m 1G -usb -device usb-tablet -show-cursor -vga std -net user,hostfwd=tcp:0.0.0.0:2222-:22,restrict=off -net nic,macaddr=ca:fe:0e:85:28:3d -serial stdio -cpu Haswell

c@3e31dc934d8e:~/w/myproject/build$ ll /home/c/w/myproject/build/tmp/deploy/images/qemux86-64/u-boot-qemux86-64.rom
lrwxrwxrwx 2 c c 32 Feb 19 13:03 /home/c/w/myproject/build/tmp/deploy/images/qemux86-64/u-boot-qemux86-64.rom -> u-boot-qemux86-64-2017.09-r0.rom
c@3e31dc934d8e:~/w/myproject/build$ ll /home/c/w/myproject/build/tmp/deploy/images/qemux86-64/u-boot-qemux86-64-2017.09-r0.rom
-rw-r--r-- 2 c c 1048576 Feb 19 13:03 /home/c/w/myproject/build/tmp/deploy/images/qemux86-64/u-boot-qemux86-64-2017.09-r0.rom
c@3e31dc934d8e:~/w/myproject/build$ ll /home/c/w/myproject/build/tmp/deploy/images/qemux86-64/core-image-minimal-qemux86-64-20190221144001.otaimg
-rw-r--r-- 1 c c 207096832 Feb 21 14:54 /home/c/w/myproject/build/tmp/deploy/images/qemux86-64/core-image-minimal-qemux86-64-20190221144001.otaimg

Thanks

[pattivacek]

Quite strange. It seems unlikely that this could be a missing dependency issue, but I suppose it is possible. One of our build machines is currently running Ubuntu 16.04.5 LTS and I've never had this issue, but if it were to have the unspecified dependency, we wouldn't notice the problem.

I don't have any great ideas right now, but could you try changing the version of python specified on the first line of meta-updater/scripts/run-qemu-ota to python3 instead of python? Does that help?

[viktor-mitin]

Changing the version of python specified on the first line of meta-updater/scripts/run-qemu-ota to python3 instead of python didn't help. I will check several more ideas soon.

c@3e31dc934d8e:~/w/myproject/build$ ../meta-updater/scripts/run-qemu-ota
Launching core-image-minimal with mac address ca:fe:13:29:47:e4
To connect via SSH:
 ssh -o StrictHostKeyChecking=no root@localhost -p 2222
To connect to the serial console:
 nc localhost 8990
Traceback (most recent call last):
  File "../meta-updater/scripts/run-qemu-ota", line 73, in <module>
    main()
  File "../meta-updater/scripts/run-qemu-ota", line 65, in main
    s = Popen(cmdline)
  File "/usr/lib/python3.5/subprocess.py", line 947, in __init__
    restore_signals, start_new_session)
  File "/usr/lib/python3.5/subprocess.py", line 1551, in _execute_child
    raise child_exception_type(errno_num, err_msg)
FileNotFoundError: [Errno 2] No such file or directory: 'qemu-system-x86_64'

Thanks

[pattivacek]

Oh, but the error message is more descriptive in this case: it implies the missing file is "qemu-system-x86_64". Do you have an executable on your system with that name?

[viktor-mitin]

Patrick, you are right, in this particular environment qemu package was missing. So probably it should be added to the manual as well https://docs.ota.here.com/quickstarts/qemuvirtualbox.html

sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib default-jre build-essential chrpath parted socat libsdl1.2-dev xterm repo libpython2.7-dev qemu

Thanks

[pattivacek]

So probably it should be added to the manual

Good idea. I've made a PR for it: advancedtelematic/ats-garage-docs#77

[viktor-mitin]

Please add to the documentation several more observations :

https://docs.ota.here.com/quickstarts/automotive-grade-linux.html
AGL build fails to compile in case of Ubuntu 18.04 and it compiles well in case of Ubuntu 16.04

https://docs.ota.here.com/quickstarts/qemuvirtualbox.html
Qemu build works well with Yocto Thud in case of building it with repo '-m thud.xml' option. However, in case of 'cow' overlay usage it requires to backup original image before building the next update image.

Thanks

[pattivacek]

AGL build fails to compile in case of Ubuntu 18.04 and it compiles well in case of Ubuntu 16.04

Technically, I don't think Ubuntu 18.04 is officially supported by rocko, which is what AGL is still using if I recall correctly, so that's outside of our control. We use 18.04 internally plenty, and it should be fine for most things. Do you recall what didn't work? We probably can't do much about it, but it would be good to know about.

Qemu build works well with Yocto Thud in case of building it with repo '-m thud.xml' option.

The quickstart guide is currently meant to be a simple introduction, so we expect readers of that to use the recommended release branch, currently rocko. However, I can discuss that internally if it's worth specifying the thud/master case.