Retarget DOTNETHOME when installing x64 on ARM64

[ericstj]

Draft that enables installing x64 product on ARM64.

Related PRs:
dotnet/arcade#7785
dotnet/runtime#58669
dotnet/installer#11843

[dougbu]

I don't think GitHub will notify us when this PR is ready for review. Could you please let us know @ericstj❔

[ericstj]

Sure, I'll let you know, mostly I just need to wait until the arcade change is reviewed and then replicate feedback here. One thing that's unique to ASP.NET is this: https://github.com/dotnet/aspnetcore/pull/36100/files#diff-b146853a2811958d2332489ea0501ea790ed1df7061172676d9c65a143d499b9R70

Can you have a look and let me know what you think?

[dougbu]

Can you have a look and let me know what you think?

@wtgodbe or @joeloff, I think you have more context to answer @ericstj's question about https://github.com/dotnet/aspnetcore/pull/36100/files#diff-841d5a29fed63d4cad2012857ad278859c9fbfdb19a78c6899af34c6155d34daR69-R72

@ericstj on the other hand, we avoid TODO comments as much as possible. If we need a fix there, please either do it in this PR or file an issue and mention the issue in those comments.

[ericstj]

@ericstj Eric St. John FTE on the other hand, we avoid TODO comments as much as possible. If we need a fix there, please either do it in this PR or file an issue and mention the issue in those comments.

I'm not going to commit it. It's in this PR while in draft because I need feedback from ASP.NET about it. I intend to get your feedback to address that comment and remove before committing.

[ericstj]

This should now be ready for review. Note that I resolved the clashing registry keys between x64 and arm64 by making x64 install to a different path on ARM64 machines.

[dougbu]

Couple of questions but I defer to @joeloff and @wtgodbe because they have more WiX-iness

[ericstj]

I believe I responded to all feedback, reviewers, can you please have a look at the responses and let me know if this looks good?

[dougbu]

@ericstj do we need this fix in release/6.0❔ If yes, release/6.0-rc2 as well❔

[ericstj]

Yes, I will be bringing a long list of commits to port to 6.0-rc2

[ghost]

Hi @ericstj. It looks like you just commented on a closed PR. The team will most probably miss it. If you'd like to bring something important up to their attention, consider filing a new issue and add enough details to build context.

[ericstj]

/backport to release/6.0-rc2

[ghost]

Hi @ericstj. It looks like you just commented on a closed PR. The team will most probably miss it. If you'd like to bring something important up to their attention, consider filing a new issue and add enough details to build context.

[github-actions]

Started backporting to release/6.0-rc2: https://github.com/dotnet/aspnetcore/actions/runs/1247487572