Score:-1

Ubuntu 20.04 and Xeon x7460 CPU

rw flag

I have a HP ProLiant DL580 G5 Server with the x7460 Xeon CPUs

Is there anyway to get this cpu working correctly in 20.04? (It looks like support was dropped in 18, I just upgraded from 16 to 20.04 and it is stupid slow)

Is there a technical reason for making this CPU incompatible or were we wanting to make old hardware stop working? (Really looking for a solution, but a nice explanation why there is none would be nice to know)

David avatar
cn flag
What does working correctly mean?
rw flag
running ubuntu 16 everything is snappy fast. running ubuntu 20.04, even logging in via ssh literally takes a couple minutes. it may take 10 minutes to boot with 20.04 and 2 minutes or less to boot with 16. On boot with 20.04, I see a line that said CPU not supported, but can not capture it to post here. It is like upgrading to 20.04 from 16 divided cpu power by 1000.
David avatar
cn flag
Two things. 1. Put this info into the question via edit. 2. If the CPU is not supported I doubt there is anything you can do. I would try 21.10 and in a few weeks 22.04 LTS comes out.
rw flag
If they removed support in 18, do you think waiting for 22?
rw flag
curious if there is a workaround to get the 16.07 cpu instruction set working in 20.04
rw flag
on 16.04: $ kvm-ok INFO: /dev/kvm exists KVM acceleration can be used on 20.04: $ kvm-ok and $ sudo /usr/sbin/kvm-ok INFO: Your CPU does not support KVM extensions KVM acceleration can NOT be used
guiverc avatar
cn flag
Please be specific with details; Ubuntu Core 16 is a different product to Ubuntu 16.04, and if you upgrade a Ubuntu Core 16 to Ubuntu Core 20 - no user applications change; as the *year* products differ to the far more widely used *year.month* products (ie. 16 is a different product to 16.04). There never was any 2016-July (16.07) release. No support was dropped; you're likely looking at the wrong facts (which are harder to ascertain when you're getting details wrong!). In tech being exact is useful.
guiverc avatar
cn flag
Ubuntu 20.04 LTS supports the following architectures; armhf, arm64, amd64, ppc64el, s390x - but I don't see how that relates given you've not changed your cpu.
karel avatar
sa flag
Ubuntu 16.04 is still supported by free Extended Security Maintenance (ESM) until 2026, but first you must troubleshoot the possibility that there's a hardware issue. Does it lag when you run Ubuntu Server 16.04 from a USB as a live session?
rw flag
16.04 runs fine
rw flag
Yes, my mistake, details are very important. I am running 16.04.7 & 20.04
rw flag
Some further details. $ kvm-ok on 16.04 INFO: /dev/kvm exists KVM acceleration can be used $ kvm-ok on 20.04: INFO: Your CPU does not support KVM extensions KVM acceleration can NOT be used I have installed KVM on 20.04 and it still gives the same answer.
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