On Sat, Dec 5, 2020 at 2:35 PM Mihai Moldovan <ionic at ionic.de> wrote: > > [Resent this message to the list without aa GPG signature, since my signature > blows the message up past the 50 KB mark... meh.] > > * On 12/5/20 8:15 PM, Simon Matter wrote: > > [...] > > 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? > > I cannot speak for the CentOS project, but I'm doing something along those > lines, albeit in a Debian-context with sbuild chroots (which are static, > compared to mock's chroots, so getting this stuff working with mock could be > painful). > > Essentially, you can leverage the binfmt_misc Linux kernel feature inn tandem > with qemu-static-user binaries. The Fedora package name for that is > qemu-user-static, I believe it's the same for CentOS. I'd use "mock" on an arm64 architecture host. If I lack spare hardware, I'd grab an AWS account and run mock in a CentOS 8 AMI. The mock provided for Amazon Linux is, I'm afraid, a bit out of date and tricky to manage due to "createrepo" versus "createrepo_c" dependencies.