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bsquared 2020-11-03 19:39

[QUOTE=ewmayer;562118]Mod note: I moved/copy/edited the various KNL posts & material which had been posted to the neighboring XFX-4-sale thread to this one.



So KNL Linux-kernel support will be gone in the various Linux distros starting when? Immediately?

As noted, I was planning on using a year-old Ubuntu distro for my initial boot attempt - should that fail for some reason there is a more-specific stack recommended by Intel for KNL, have the link saved somewhere.[/QUOTE]

That discussion thread says MIC driver support is being removed. That's KNC, I believe, not KNL.

kriesel 2020-11-03 20:20

Knights Corner shipped (and I have one) MIC
Knights Landing shipped (and Dave Stanfil has one Ernst used) 2nd generation MIC
Knights Hill canceled, no indication it shipped; intended as 3rd generation MIC
Knights Mill launched 2017 [URL]https://ark.intel.com/content/www/us/en/ark/products/128694/intel-xeon-phi-processor-7235-16gb-1-3-ghz-64-core.html[/URL]
[URL]https://ark.intel.com/content/www/us/en/ark/products/128694/intel-xeon-phi-processor-7235-16gb-1-3-ghz-64-core.htm[/URL]

M344587487 2020-11-03 21:38

[QUOTE=ewmayer;562118]...
So KNL Linux-kernel support will be gone in the various Linux distros starting when? Immediately?
...[/QUOTE]Whatever they've removed they've removed from kernels >=5.10, 5.10 isn't released for another month and distros follow kernel releases in their own way. Most kernels are only supported for a few months except LTS kernels, the newest is 5.4 with support until 2025. LTS kernels get backports of mainly security updates, but even if a security flaw is present in what's been removed I believe they wouldn't backport a removal as it would potentially break userspace.

tl;dr you mentioned Ubuntu so if you need the thing use Ubuntu 20.04, it uses kernel 5.4 and it is itself an LTS release so is supported for years.

ewmayer 2020-11-11 20:36

The Hydra workstation KenK alerted me to just arrived from the eBay seller yesterday. It has 16GB onboard mem, no DIMMs at present, as 16GB is enough for my near-term needs. Installed a 1TB SSD and plugged in a Ubuntu 19.10 boot stick and a new WiFi USB, fired up, after Supermicro BIOS did its thing, <f11> started the Ubuntu boot, that quickly hit this:
[i]
(initramfs) Unable to find a medium containing a live file system
[/i]
'help' lists a bunch of available options. What should I try?

paulunderwood 2020-11-11 20:54

[QUOTE=ewmayer;562930]The Hydra workstation KenK alerted me to just arrived from the eBay seller yesterday. It has 16GB onboard mem, no DIMMs at present, as 16GB is enough for my near-term needs. Installed a 1TB SSD and plugged in a Ubuntu 19.10 boot stick and a new WiFi USB, fired up, after Supermicro BIOS did its thing, <f11> started the Ubuntu boot, that quickly hit this:
[i]
(initramfs) Unable to find a medium containing a live file system
[/i]
'help' lists a bunch of available options. What should I try?[/QUOTE]

On ddg'ing, one trick seems to use a USB2 slot rather than USB3.

[URL="https://askubuntu.com/questions/451662/when-i-start-the-ubuntu-iso-initramfs-says-unable-to-find-a-medium-containing"]Link[/URL]

ewmayer 2020-11-11 21:24

[QUOTE=paulunderwood;562931]On ddg'ing, one trick seems to use a USB2 slot rather than USB3.

[URL="https://askubuntu.com/questions/451662/when-i-start-the-ubuntu-iso-initramfs-says-unable-to-find-a-medium-containing"]Link[/URL][/QUOTE]

System has 5 USB ports - 2 in the case near the power switch, 3 in the ports area of the mobo backplate. Is there a simple way to tell the difference between USB2 and USB3, or must one wire-trace to where those connect to the mobo?

Wait - just did a websearch for the Supermicro K1SPE motherboard user manual, the Supermicro site was uncooperative re. a DLable pdf, but [url=https://www.manualslib.com/manual/1406892/Supermicro-5038k-I.html?page=11#manual]found this[/url]:
[i]
Four (4) USB 3.0/2.0 ports on the rear I/O panel (USB 2.0 0/1, USB 2.0 5/6 or
USB 3.0 2/3, USB 3.0 7/8)

One (1) Onboard USB header with two USB 3.0 connections (USB 3.0 8/9) for
front control panel[/i]

I only see 3 USB ports on rear I/O panel of my mobo, but sounds similar - unplugged the wifi stick from one of those - won't be needed until post-OS-install - to make room for the boot USB, rebooted ... and we have an install screen. Thanks! Will update once install (hopefully) completes.

paulunderwood 2020-11-11 21:30

[QUOTE=ewmayer;562932]System has 5 USB ports - 2 in the case near the power switch, 3 in the ports area of the mobo backplate. Is there a simple way to tell the difference between USB2 and USB3, or must one wire-trace to where those connect to the mobo?
[/QUOTE]

[URL="https://www.geeksinphoenix.com/blog/post/2014/01/12/How-to-tell-what-type-of-USB-connector-you-have-by-color.aspx"]USB 2.0 sockets are usually black and USB 3.0 blue.[/URL]

kriesel 2020-11-11 22:15

It's a different style case, but the following has a lot of info on K1SPE MB and BIOS
[URL]https://www.supermicro.com/manuals/superserver/mid-tower/MNL-1891.pdf[/URL]
(and yes it was well hidden)

downloads
[URL]https://www.supermicro.com/support/resources/resource_links.cfm[/URL]

ewmayer 2020-11-11 22:59

[QUOTE=paulunderwood;562933][URL="https://www.geeksinphoenix.com/blog/post/2014/01/12/How-to-tell-what-type-of-USB-connector-you-have-by-color.aspx"]USB 2.0 sockets are usually black and USB 3.0 blue.[/URL][/QUOTE]

Useful to know, thx.

Install seems to have gone fine, got to the "restart system now" prompt, upon which subsequent reboot got the expected Ubuntu - I paraphrase -"please remove install medium and press 'Enter'" prompt, did that, Ubuntu startup began, the little scrolling dots below the logo to effect of 'working...', but never got to the hoped-for login prompt, system is hung with black screen with mouse cursor frozen. No more time for this today, tips as to what to try tomorrow welcome.

paulunderwood 2020-11-11 23:08

[QUOTE=ewmayer;562938]
Install seems to have gone fine, got to the "restart system now" prompt, upon which subsequent reboot got the expected Ubuntu - I paraphrase -"please remove install medium and press 'Enter'" prompt, did that, Ubuntu startup began, the little scrolling dots below the logo to effect of 'working...', but never got to the hoped-for login prompt, system is hung with black screen with mouse cursor frozen. No more time for this today, tips as to what to try tomorrow welcome.[/QUOTE]

This sounds bad.

One thing to try if the keyboard is responding is Ctrl+Alt+F1 or Ctrl+Alt+F2 to get you to a login prompt. Usually it is Ctrl+Alt+F7 to get you back to the GUI.

If the keyboard is not responding, select a different image at boot time -- maybe a rescue mode one

Nick 2020-11-11 23:18

I don't use Ubuntu but in my Linux distribution you can press Escape during the boot dots graphic to get the old-fashioned boot messages on the console instead. which may be more helpful.


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