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I have an Intel server board S5520hct which I am NOT SURE if it suppots EFI boot. There is an option in the BIOS called "EFI Optimized boot". However, I keep seeing UEFI and EFI being used interchangeably. I am thinking I need to enable the "EFI optimized boot" so that I can use the full 4TB on my hard drives, as currently the BIOS shows my 4TB hard drive as only being 1.8TB.
You should DISABLE the old efivars sysfs interface found at:
Firmware Drivers
EFI (Extensible Firmware Interface) Support
EFI Variable Support via sysfs (CONFIG_EFI_VARS [=n])
as it is deprecated in favor of CONFIG_EFIVAR_FS, because it has a 1024-byte variable size limit, and because it can cause data inconsistency issues. However, if you do disable this, you will need a fork of the efibootmgr program that supports the new EFI Variable filesystem.
There was a mistake in my post: /sys/firmware/efi (and not /lib/firmware/efi). Sorry.
.
No problem, quick question...from my research, cfdisk does not support GPT and/or partitions more than 2TB yes? My BIOS was also showing only 1.8TB before. When I booted the Slackware DVD and ran cfdisk, it asked me this http://1.bp.blogspot.com/-25vUwh8_WV...box-arch14.png and I selected gpt and it showed 3.7TB ....I thought cfdisk did not support this? Why is it showing it? I thought I had to use cgdisk ?
No problem, quick question...from my research, cfdisk does not support GPT and/or partitions more than 2TB yes? My BIOS was also showing only 1.8TB before. When I booted the Slackware DVD and ran cfdisk, it asked me this http://1.bp.blogspot.com/-25vUwh8_WV...box-arch14.png and I selected gpt and it showed 3.7TB ....I thought cfdisk did not support this? Why is it showing it? I thought I had to use cgdisk ?
Both the newest cfdisk and lilo support GPT, but only partially.
Use cgdisk for partitioning, and lilo as a boot manager.
Sure! But, despite the title of this thread, Altiris' problem is: "Can I use my big disk in BIOS". And the answers are:
1) You do not need EFI.
2) What you need is GPT.
Because of the two listed above:
3) gdisk for partitioning
4) lilo for booting
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