Question about Volume Boot Record
Hello and thanks in advance for any help anyone can offer
Hopefully this is a simple question but is the Volume Boot Record (VBR) only used in Windows? I've seen references to it in relationship to Windows & not Linux... but I'm not sure if that means it's unique to Windows or not. If it is used in Linux can someone give me a quick run down on the criteria of when it would be used? Could someone straighten me out there please? Thanks! |
It's not only used in Windows. Its like the MBR.
The difference is that MBR is at the front sector of the HDD, whereas the VBR is at first sector of a partition inside the HDD. The MBR has a jump instruction to go to the 1st sector in the VBR. So - you can call it Volume Boot Sector, Volume Boot Record or Boot Block. Should be pretty easy to research it with that info. |
Thanks for the reply! I hope you don't mind a follow up question
You didn't specifically say it but Linux does use it? I've tried researching it and haven't found anything specific about the VBR & Linux. All the documentation I've seen makes it sound like VBR is used in Windows and called directly by firmware or used for chain loading. Can I ask you to elaborate on when Linux would use it please? |
Linux uses it. For example, if you want to install syslinux bootloader (which i use on my embedded device installs) you would do this:
Code:
extlinux --install /boot/syslinux https://wiki.archlinux.org/index.php/syslinux http://thestarman.pcministry.com/asm/mbr/GRUB.htm http://glennastory.net/boot/pbr.html Hope that helps. |
THANKS!!!! I think you straightened me out enough I can start researching it!!! Appreciate the help! :)
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Welcome! Learning ALL the depths of 'grub' is something I enjoy; hope you will too.
You will find a ton of great stuff in wikipedia.org on boot MBR ... Try this search: wiki linux vbr |
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