Ubuntu 26.04 Resolute CPU ISA level error
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Description
Bug Overview
Hello, this is not a bug per say, but the latest ubuntu release 26.04 Resolute, Nginx will not start and produces the error message "CPU ISA level lower than required". Seems the packages were compiled with the latest processors in mind and not backwards compatible with the older processors.
Expected Behavior
Expected behavior, be compatible with older hardware.
Steps to Reproduce the Bug
After installing the latest stable release from your repository. I execute, service start nginx and I receive error "CPU ISA level lower than required".
Environment Details
Ubuntu 26.04 "Resolute Raccoon" Processor Xeon E3 1240V3.
Additional Context
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the nginx package installation and service start on Ubuntu 26.04 with the Xeon E3-1240V3 processor, then trace the package build configuration that determines the required CPU ISA level. Done means the stable repository package starts successfully on this older hardware without the "CPU ISA level lower than required" error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- nginx, ubuntu
- Domain
- build-system, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100