- #Asus save bios settings to file driver#
- #Asus save bios settings to file code#
- #Asus save bios settings to file Pc#
#Asus save bios settings to file code#
Here is the code so you can compile the script: MAKE SURE YOU ENTER THE VALUES LIKE THIS OR IT WILL NOT WORK ITS A QUICK SCRIPT I MADE. memDifference 0x000c0000 0x000ce9ff /home/kali/outputĪs you can tell, the first bit is the script and the bit at the end is the file you want to output. You just add a 0x at the front of both of them and separate them with a space like this: 0xfed20000 0xfed3ffffįinally add them to the script that I made like this: sudo. Once you have the two different hex values ~ looks like this: fed20000-fed3ffff # this will output the other mem values you can dump if that floats your boat. You have to run: grep ROM /proc/iomem # this will ouput the ROM hex values. I was finding it annoying converting everything, also his answer doesn't mention that you have to convert the values and where to put them and all that. I built something on top of ack's answer, it's just a little bash script that automates the process of converting the hex to decimal for us noobs.
#Asus save bios settings to file driver#
To compile this driver as a module, choose M here: the On Atari machines, /dev/nvram is always configured and does not need See Ralf Brown's interrupt listįor a guide to the use of CMOS bytes by your BIOS.
#Asus save bios settings to file Pc#
However that most NVRAM space in a PC belongs to the BIOS and you Power-off and for which writing to disk is too insecure. Save a few bits of very important data that may not be lost over dev/nvram may be used to view settings there, or toĬhange them (with some utility). This memory is conventionally called "CMOS RAM" on PCs and "NVRAM" Nvram in the system, but is usually 114 (128-14 for the RTC). The actual number of bytes varies, depending on the Memory in the real time clock (RTC), which is contained in every PCĪnd most Ataris. You get read and write access to the extra bytes of non-volatile With major number 10 and minor number 144 using mknod ("man mknod"), If you say Y here and create a character special file /dev/nvram If you only want to save the so called CMOS RAM (those extra-bytes you save configuration to, like alarm on RTC et al) the kernel's nvram driver and device might help you: config NVRAMĭepends on ATARI || X86 || (ARM & RTC_DRV_CMOS) || GENERIC_NVRAM Provided that your system is supported, you can read your BIOS content by issuing # flashrom -r
I think what you're looking for is flashrom. You can read more about the Linux kernel and a system's BIOS in this article from Linuxmagazine titled: Linux and the BIOS. However you can make real-time BIOS calls from the root user using C applications that include embedded ASM (Assembly code), etc.
Yes, the kernel keeps only the information it needs from the BIOS in the RAM. Search the man page for more information: $ man dmidecode You will need to use dmidecode command for dumping a computer’s DMI (SMBIOS) table contents on screen. Data provided by biosdecode is not in a human-readable format.The DMI table mainly describes what the system is currently made of. Decoding BIOS data is the same as dumping a computer's DMI.biosdecode parses the BIOS memory and prints the information about all structures.It finds out information about hardware such as: It is a command line utility to parses the BIOS memory and prints information about all structures (or entry points) it knows of.