BIOS version is exposed through the SMBIOS tables. On Linux, we can access this with dmidecode (which requires root privileges to run). To show only BIOS information, use -t bios to specify that we only want to see entries of the type BIOS, and -q to silence unnecessary output. # dmidecode -t bios -q BIOS … Read more
A BIOS can be written in assembly but doesn’t have to be, some parts need to be to get the parameters for the system call since they don’t match the compilers calling convention. How do you flash it? Varies from motherboard to motherboard, I would start with an open source virtual machine and write a … Read more
In general, no. There is no standard for how settings are stored, or even what settings there are. This information is proprietary to each individual bios.
This turned out to be a very interesting question. There are lots of links out there on this topic but they are ambiguous in describing the difference/relationship between the two. Best description I’ve found of the hard drive configuration for a Windows OS is this one: http://www.ntfs.com/hard-disk-basics.htm. It appears that MBR and Partition Table are … Read more
You will have to access the information available on your managed switches. If you have an unmanaged network, I don’t see a way to do that. This is assuming the target computers are capable of Wake-on-LAN (WoL). In this case, a link to the server is established (look for the flashy link LED), and the … Read more
With the HP ProLiant G5 and newer (G6, G7, Gen8) servers (e.g. DL380, ML370, etc. – Anything after the Intel 5400-series CPU’s), it is possible to disable half of the cores available to the server. This is a BIOS switch labeled “Processor Core Disable” with options “All Processors Enabled” and “Disable One-Half of cores per … Read more
The Blue Pill was a proof of concept, that this could be potentially used by malware, making that malware completely invisible to the OS.
It does make a difference, it will only make sense if you require the RAS (Reliability, Availability, and Service) features on x4 or x8 devices and understand the trade-offs for your needs. More details can be explained in the Dell white paper Dell™ PowerEdge™ Servers 2009 – Memory. Also, configuration and layout with details specific … Read more
The first problem that you write in UNIX style. But the UEFI uses DOS style. So your sequence of commands: map mount blk0 aaa aaa: // !!! change disk in dos stile cd EFI\debian // use backslashes grubx64.efi // run bootloader without “./” The second problem – you have nothing written about the disk partitioning … Read more
There’s no option here. Since the advent of the Nehalem and newer CPU’s, the POST time on HP systems has grown tremendously. I see that you’re using this as a workstation. Is there any option to leave the system running and take advantage of some of the BIOS power management options?