This is an old revision of the document!
Table of Contents
omani{001..010}
Summary
These were donated by ARM. Ask dgalloway or dmick for our contact at ARM.
They are ARM64 Cavium ThunderX systems in 1U Gigabyte chassis.
Hardware Specs
| Count | Manufacturer | Model | Capacity | Notes | |
|---|---|---|---|---|---|
| Chassis | 1U | Supermicro | SYS-5018R-WR | N/A | |
| Mainboard | N/A | Supermicro | X10SRW-F | N/A | |
| CPU | 1 | Intel | Xeon(R) CPU E5-1620 v3 @ 3.50GHz | N/A | ARK |
| RAM | 2 DIMMs | Hynix Semiconductor | HMA42GR7MFR4N-TF | 16GB | 32GB Total |
| HDD | 1 | Seagate | ST1000NM0033 | 1TB | |
| NVMe | 1 | Intel | P3700 | 400GB | |
| NIC | 2 ports | Intel | I350 | 1Gb | Not used |
| NIC | 2 ports | Intel | 82599ES | 10Gb | 1 port cabled per system on front VLAN |
| BMC | 1 | Supermicro | N/A | N/A | Reachable at $host.ipmi.sepia.ceph.com |
PXE/Reimaging
These machines are configured in DHCP to receive /var/lib/tftpboot/aarch64/grubaa64.efi from the Cobbler host when PXE booting. This brings up the menu I manually created in /var/lib/tftpboot/aarch64/grub.cfg.
When reimaging with Xenial, it will appear to hang for a few minutes. Just let it sit and you'll eventually get to the NIC selection screen in the installer.
Also, if you need to install vagrant on Xenial for CI use, see https://stackoverflow.com/questions/36811863/cant-install-vagrant-plugins-in-ubuntu/36991648#36991648
Resetting root password via grub prompt
Hopefully we won't need this but I thought it was worth documenting since we didn't know the logins for the Xenial installation that came shipped with the systems.
let system boot and get to PXE grub menu Press C for grub command prompt Use `ls` to figure out where the boot partition is. (e.g., ls (hd0,gpt2)/) grub> linux (hd0,gpt2)/boot/vmlinuz root=/dev/sda2 init=/bin/sh grub> initrd (hd0,gpt2)/boot/initrd.img grub> boot # mount -o remount,rw / # passwd root # /sbin/reboot -f
Serial Access
These are accessible via conserver using IPMI SOL as the driver. (e.g., console omani001)
These are also accessible via their IPMI web interfaces. omani###.ipmi.sepia.ceph.com using the standard ipmi credentials.