Booting into Rescue Mode (Load OS without LV'S)
It may sometimes be helpful to boot into Rescue Mode (Load OS without LV's) when troubleshooting or applying patches by following the steps below.
- Boot with rescue mode
You need to press "Tab" button at the screen where you choose 32/64 bit mode or RUN SOFTWARE INSTALLER :
Modify the line that contains different parameters :
You need to type :
MDADM - Monitor Mode with Email
You can run mdadm as a daemon by using the follow-monitor mode. If needed, that will make mdadm send email alerts to the system administrator when arrays encounter errors or fail. Also, follow mode can be used to trigger contingency commands if a ...
Using 4k Native drives as OS (Bootable)
Installation Create a virtual drive Create a virtual drive in the RAID controller Be sure to disable drive emulation The reason we set emulation to disable, was that there was a bug in the firmware where Virtual Disks built from 4kn SED SSD ...
4Kn drive does not show up in bootable device list after OS installation
With Supermicro systems, 4Kn drives are only supported in UEFI mode. In order to boot the OS from this drive, you need to set the BIOS Boot mode to UEFI and install the OS in this BIOS mode. https://www.supermicro.com/support/faqs/faq.cfm?faq=21942
Setup Ubuntu 14.04.5 LTS Server with Software Raid1 for OS. (Video)
The attached video will demonstrate a complete Ubuntu 14.04.5 LTS Server setup with the following. Legacy Bios Mode. 240 GB Raid 1 - 2 X 240 GB SSD - OS drive 800 GB Raid 0 - 2 X 400 GB SSD - SCRATCH The video is approximately 6 Minutes and ...
Load IPMI Modules on Linux
Common Errors: *Not seeing Ipmi information due to no device found. Kernel module may not be loaded. *Could not open device at /dev/ipmi0 or /dev/ipmi/0 or /dev/ipmidev/0: No such file or directory *Get Device ID command failed *Unable to open SDR ...