On Sat, Dec 5, 2020 at 2:15 PM Simon Matter <simon.matter at invoca.ch> wrote: > > Hi, > > We are thinking about adding ARM64 based devices to our systems. > > As we are using CentOS almost everywhere and have quite a number of > inhouse RPM packages in our company repository, we'd like to enhance it > and add ARM64 alias aarch64 to it. > > What I'm still wondering is how to run the build environment for the new > arch? > > How does the CentOS project do it, run ARM64 hardware or using emulation? > Or to ask differently, is it an option to run the build system emulated > with QEMU? > > Thanks for any insights? The Mock tool from Fedora EPEL supports automatically running emulation for foreign architectures for building packages if qemu-user-static is installed. That makes building AArch64 packages from x86_64 or vice versa pretty simple. To build a package for aarch64 from x86_64 from a fresh system using Mock: $ sudo dnf install mock qemu-user-static $ sudo usermod -a -G mock $USER $ newgrp mock $ mock -r epel-8-aarch64 </path/to/package.src.rpm> -- 真実はいつも一つ！/ Always, there's only one truth!