If I use FROM --platform=linux/arm64 ... instead of FROM --platform=linux/amd64 then the container fails with
rosetta error: failed to open elf at /lib/ld-musl-x86_64.so.1
Indeed, I’m not.
jgallinari
0
Tyson
Okay, this feels like the real problem. Is it possible that there is a base image further down the stack which is x86? I believe this can come up when a base image doesn’t offer an ARM version.
1
jgallinari
Yes, the hexpm/elixir base image that I was using is x86 based.
Once I could try it with the linux/arm64 version of the image, the problem was gone, can you believe it? 
Thanks a lot, I really appreciate your support!
[edit: and no more need for the ERL_FLAGS, as you said]
3
dimitarvp
Tyson
I’ve had good luck building/running x86 images from ARM host by configuring the base Erlang image to --disable-jit.
I haven’t yet tried the ERL_FLAGS approach that was giving jgallinari trouble here.
1
fteschke
For me, cross compilation from Apple Silicon host to linux/amd64 target works
- both: Docker VMM, Apple Virtualization Framework (Rosetta disabled)
docker build --platform linux/amd64- essential:
ENV ERL_AFLAGS="+JMsingle true"in Dockerfile (core dumps, memory alloc issue otherwise)
0