Thread: Intel Xeon PHI?
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Old 2020-11-18, 23:48   #67
ewmayer's Avatar
Sep 2002
Rep├║blica de California

2·7·829 Posts

I prefer not having to online-register for anything if it can be avoided. Created boot disk using CentOS iso file (CentOS-8.2.2004-x86_64-minimal.iso, DLed from one of the official mirrors), plugged into the KNL and booted from it using the "install" option, got through a bunch of steps with a green "[ OK ]" in the terminal output, then hit a bunch of repeated warnings of form

[time-since-boot] dracut-initqueue[3265]: Warning: dracut-initqueue timeout - starting timeout scripts

After a few minutes of that repeating, got
       Starting Setup Virtual Console...
[ OK ] Started Setup Virtual Console.
       Starting Dracut Emergency Shell...
Warning: /dev/root does not exist

Generating "/run/initramfs/rdsosreport.txt"
Entering emergency mode. Exit the shell to continue.
Type "journalctl" to view system logs.
You might want to save "/run/initramfs/rdsosreport.txt" to a USB stick or /boot after mounting them and attach it to a bug report.

The journalctl command emulates Linux "more", which is unavailable in this emergency-mode shell environment. Some highlights - note this appears in fact to be a 68-physical-core (4 logical CPUs per physical one, thus 272) system like kriesel's, not the 64-core one I thought I was buying (not that I'm complaining, mind you :) - with a few annotations by me in []:
smpboot: Allowing 272 CPUs, 0 hotplug CPUs
Booting paravirtualized kernel on bare hardware.
Kernel command line: BOOT_IMAGE=vmlinux [stuff about the CentOS iso] quiet
Specific versions of hardware are certified with Red Hat Enterprise Linux 8. Please see the list of hardware are certified with Red Hat Ent[line cuts off]
x86: Booting SMP configuration:
smp: brought up 1 node, 272 CPUs
ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
ACPI: bus type PCI registered
ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[bunch of pci-init stuff]
SCSI subsystem initialized
can't derive routing for PCI INT D
PCI INT D: not connected
New USB device found [stuff re. Linux boot image]
can't derive routing for PCI INT D
[stuff about loading CentOS kernel signing key]
[this is in bright red font]usb 3-8: device descriptor read/64, error -110
igb: Intel(R) Gigabit Ethernet Network Driver - version 5.6.0-k
sd 3:0:0:0: [sda] Attached SCSI disk [preceding line confirm 1TB, i.e. the SSD I bought gor this build]
Then we get the repeating "dracut" timeout warnings I mentioned above, ending in "Warning: Could not boot." and the Emergency-shell stuff.
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