Why is Qt specific version so hard to install on arm-based ubuntu.

mchmch

Why is Qt specific version so hard to install on arm-based ubuntu.
I found that Ubuntu virtual machine installed on Mac with m1 chip cannot install qt.
why?

jsulm

@mchmch Ubuntu already provides Qt packages (not the latest though) - can't you install those?
QtCompany does not provide M1 builds yet. But you can use x86_64 builds on M1 without problems.

mchmch

@jsulm I want to build my QGC on Ubuntu virtual machine installed by parallels desktop of mac. the ubuntu VM is arm-based. I don't know how to install qt5.15.2, which specified by GQC.

https://dev.qgroundcontrol.com/master/en/getting_started/

mchmch

@jsulm my ubuntu version is

which installed by https://kb.parallels.com/128445

JKSH

@mchmch said in Why is Qt specific version so hard to install on arm-based ubuntu.:

cannot install qt.

What do you mean?

I don't know how to install qt5.15.2

https://wiki.qt.io/Building_Qt_5_from_Git

ChrisW67

@mchmch The Qt 5 supported platform list linked to by the QGC Getting Started page advises that Ubuntu is supported only on X86_64. Given how adamant QGC is that you use that particular version of Qt, I cannot imagine there would be any certainty of results on a completely unsupported architecture.

You can certainly try building Qt from source, and it may work, but there are no guarantees.

jsulm

@mchmch said in Why is Qt specific version so hard to install on arm-based ubuntu.:

I don't know how to install qt5.15.2

Like you install any other packages on Ubuntu: using apt:

sudo apt-get install qt5-default

Maybe you will also need to install some other Qt modules (also using apt).

JKSH

@jsulm said in Why is Qt specific version so hard to install on arm-based ubuntu.:

@mchmch said in Why is Qt specific version so hard to install on arm-based ubuntu.:

I don't know how to install qt5.15.2

Like you install any other packages on Ubuntu: using apt:
sudo apt-get install qt5-default

Ubuntu 20.04 provides Qt 5.12.8.

Debian Bullseye, on the other hand, provides Qt 5.15.2.

jsulm

@JKSH You're right
@mchmch didn't realise you need 5.15. In that case you have to build Qt 5.15.x by yourself.

mchmch

@JKSH I have install it, but something error, in here.