Talk:Unified Extensible Firmware Interface

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Revision as of 16:18, 20 October 2012 by The.ridikulus.rat (Talk | contribs) (Clarify)

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>=512 MiB for the UEFISYS partition?

I was never told to make it 512 MiB or more, and right now it's 47.86 MiB and it works fine. Are there any other particular reasons for making it that relatively big? /// (t) 18:27, 26 July 2012 (UTC)

Microsoft Documentation mentions the minimum partition size for FAT32 to be 512 MiB. UEFI Spec. in some places mentions just FAT but in some places specifically mentions FAT32. Combining both the cases, having a >=512 MiB FAT32 (not FAT16/FAT12) partition UEFISYS is the best bet for all fimrwares out there, some of which may not support <512 MiB and/or FAT16 partition. -- Keshav P R (talk) 16:18, 20 October 2012 (UTC)

UEFI bootable USB

I create a MBR partition table before I create the FAT32 partition itself. It works for me, but I don't know if it is required.

Fixed. -- Keshav P R (talk) 16:18, 20 October 2012 (UTC)

Lots of mistakes for USB install media booting

mount -o rw,users -t vfat <USB_device> /tmp/archusb

It's not USB_device (/dev/sdc), it's a partition on the USB device (/dev/sdc1).

Fixed. -- Keshav P R (talk) 16:18, 20 October 2012 (UTC)


rm -f /tmp/archusb/[BOOT]

What is that? There's no '[BOOT]' file.

It is present when the iso is extracted using p7zip, but not present when using bsdtar. Anyway I have clarified the info. -- Keshav P R (talk) 16:18, 20 October 2012 (UTC)


mlabel -i <USB_device> ::<archisolabel>

mlabel needs mtools, dosfslabel is probably more common.

Fixed. -- Keshav P R (talk) 16:18, 20 October 2012 (UTC)