ModuleNotFoundError: No module named 'virtManager : TUTORIAL REDONE BETTER

[Mario Marietto <marietto2008@xxxxxxxxx>]

Hello.

I've tried to compile a custom libvirt-python+virt-manager stack following these tutorials :

https://developer.ibm.com/technologies/linux/tutorials/compiling-libvirt-and-qemu/

https://gist.github.com/ffledgling/9e06ee32431d9a8f6d9bec3a0db35634

on my jetson nano (arm64 + ubuntu 18.04). In details,these are the steps that I did :

1. Install Git and clone both upstream libvirt and qemu repos.

git clone https://github.com/qemu/qemu.git

git clone https://github.com/libvirt/libvirt.git

2. Configure and build the qemu code and then install the qemu code. The make install command creates the binary files in the /usr/local directory.

cd qemu

mkdir -p build

cd build

../configure --prefix=/usr/local --target-list=aarch64-softmmu,arm-softmmu --enable-guest-agent --enable-vnc --enable-vnc-jpeg --enable-vnc-png --enable-kvm --enable-spice --enable-sdl --enable-gtk --enable-virglrenderer --enable-opengl

make -j

sudo make install

2.1) qemu 6.0 has been detected correctly at this point :

#qemu-system-aarch64 --version

QEMU emulator version 6.0.50 (v6.0.0-1145-g7258034ab4) Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers

3. Configure and build libvirt and then install the libvirt code. Libvirt_build contains the log and configuration files for the daemons and the qemu driver.

cd ~/Desktop/zi/Work/I9/libvirt

mkdir -p libvirt_build

cd ~/Desktop/zi/Work/I9/libvirt

$ meson libvirt_build

$ ninja -C libvirt_build

$ ninja -C libvirt_build install

4. Run the following commands from /root/Desktop/zi/Work/I9/libvirt/libvirt_build directory to start the libvirt daemon (libvirtd).

~/Desktop/zi/Work/I9/libvirt/libvirt_build# sudo ./run src/virtlockd & sudo ./run src/virtlogd & sudo ./run src/libvirtd

5. Here is the ouput of the virt process running in my system :

~/Desktop/zi/Work/I9/libvirt_build# ps axf | grep virt

30925 pts/0 S 0:00 | _ sudo ./run src/virtlockd 30929 pts/0 S 0:00 | |
_ src/virtlockd 30926 pts/0 S 0:00 |
_ sudo ./run src/virtlogd 30930 pts/0 S 0:00 |
| _ src/virtlogd 31201 pts/0 S 0:00 |
_ sudo ./run src/virtlockd 31205 pts/0 S 0:00 |
| _ src/virtlockd 31202 pts/0 S 0:00 |
_ sudo ./run src/virtlogd 31207 pts/0 S 0:00 |
| _ src/virtlogd 31204 pts/0 S+ 0:00 |
_ sudo ./run src/libvirtd 31206 pts/0 Sl+ 0:01 |
_ src/libvirtd 4732 pts/1 S+ 0:00 _ grep --color=auto virt

31413 ? S 0:00 /usr/sbin/dnsmasq --conf-file=/root/Desktop/zi/Work/I9/libvirt/libvirt_build/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/home/zi/Desktop/Work/I9/libvirt/build/src/libvirt_leaseshelper

31426 ? S 0:00 _ /usr/sbin/dnsmasq --conf-file=/root/Desktop/zi/Work/I9/libvirt/libvirt_build/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/home/zi/Desktop/Work/I9/libvirt/build/src/libvirt_leaseshelper

6. Install libvirt-python next because I need to use virt-manager and that requires libvirt python bindings

~/Desktop/zi/Work/I9/libvirt/libvirt_build# sudo ./run tools/virsh list --all

Id Name State

---

7. Install libvirt-python next because I need to use virt-manager and that requires libvirt python bindings

CUSTOM_ROOT=/home/zi/Desktop/Work/I9/libvirt/libvirt_build

mkdir - p $CUSTOM_ROOT/src

#cp -r /root/Scrivania/Scrivania/Dati/Data/Nano/I9/Tools/virt-manager-3.2.0 /home/zi/Desktop/Work/I9/libvirt/libvirt_build/src

~/Desktop/zi/Work/I9/libvirt/libvirt_build/src/libvirt-python-7.3.0# export LD_LIBRARY_PATH=$CUSTOM_ROOT/lib

~/Desktop/zi/Work/I9/libvirt/libvirt_build/src/libvirt-python-7.3.0# export PKG_CONFIG_PATH=$CUSTOM_ROOT/lib/aarch64-linux-gnu/pkgconfig

~/Desktop/zi/Work/I9/libvirt/libvirt_build/src/libvirt-python-7.3.0# python setup.py build

~/Desktop/zi/Work/I9/libvirt/libvirt_build/src/libvirt-python-7.3.0# python setup.py install --root $CUSTOM_ROOT

LOG : https://pastebin.ubuntu.com/p/SVHkDhXs2s/

8. Then I've installed a custom virt-manager into the same location and it should pick up the newer python bindings :

#cp -r /root/Scrivania/Scrivania/Dati/Data/Nano/I9/Tools/virt-manager-3.2.0 /home/zi/Desktop/Work/I9/libvirt/libvirt_build/src

#cd virt-manager-3.2.0

#python setup.py install --root $CUSTOM_ROOT

LOG : https://pastebin.ubuntu.com/p/bCn5Q3yHVX/

9. Finally I put all in my $PATH :

export PATH=$CUSTOM_ROOT/bin:$PATH

export PATH=$CUSTOM_ROOT/usr/bin:$PATH

#echo $PATH

/home/zi/Desktop/Work/I9/libvirt/libvirt_build/usr/bin:/home/zi/Desktop/Work/I9/libvirt/libvirt_build/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/zi/Desktop/Work:/root/Desktop/turbovnc/jtx1_remote_access >/tmp/turbovnc-build/bin/:/root/Desktop/turbovnc/jtx1_remote_access/tmp/virtualgl-build/bin/

10. Unfortunately,when I try to run virt-manager with this command,it does not work :

/home/zi/Desktop/Work/I9/libvirt/libvirt_build/usr/bin# python virt-manager

Traceback (most recent call last): File "/home/zi/Desktop/Work/I9/libvirt/libvirt_build/usr/bin/virt-manager", line 6, in from virtManager import virt manager ModuleNotFoundError: No module named 'virtManager'

Where is the mistake ? Thanks very much.

--

Mario.