Problem Statement/Rationale

Mongo Installation on RHEL ARM architecture need to declare two yum dependancies since the rpm packages are split between aarch64 and arm64

Steps to Reproduce

Follow the installation guide for RHEL and place inside 

/etc/yum.repos.d/mongodb-org-6.0.repo 

the yum repository targeting aarch64:

[mongodb-org-6.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/6.0/aarch64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-6.0.asc

And install mongod with the following command:

sudo yum install -y mongodb-org 

Expected Results

Mongod installed with every dependancies resolved.

Actual Results

The mongodb-org-tools dependancy is not resolved since he is on his own repository on the arm64 (screen in the attachment).

Additional Notes

If we declare two yum repositories inside

/etc/yum.repos.d/mongodb-org-6.0.repo  

like this:

[mongodb-org-6.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/6.0/aarch64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-6.0.asc

[mongodb-org-tools-6.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/6.0/arm64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-6.0.asc 

The dependancies are resolved

A discussion on the mongo forum community give more detail if needed.

Proposed Solution

All RHEL platform releases on ARM64 should use "aarch64" as the architecture name instead of "arm64". This looks to be broken for RHEL 8.2 as well as 9.0. See 6d9d341edd33b892a2ded7bae529b0e2a96aae01 for a past commit that does this for Amazon Linux.

We should also fix the comment in release/platform/platform.go that incorrectly states that RHEL uses "arm64".