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Thread: Questions viz. UEFI enabled post Ubuntu Mate installation while the Partitioning is s

  1. #1
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    Questions viz. UEFI enabled post Ubuntu Mate installation while the Partitioning is s

    Question: Questions viz. UEFI enabled post Ubuntu Mate installation while the Partitioning is still MBR

    Hi!


    If 'UEFI Boot Support' is enabled in BIOS (was previously disabled) and if the 'Partitioning' is still 'MBR' then:


    1. Would the OS boot?
    2. If it boots, would there be any performance improvement?
    3. Are there any potential complications that one should be aware of?

    Thanks!
    Last edited by Saptarshi_Roy; March 29th, 2020 at 07:22 PM. Reason: Updated the question

  2. #2
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    Re: Questions viz. UEFI enabled post Ubuntu Mate installation while the Partitioning

    1. it depends on the hardware and BiOS. I’ve not had any issues using UEFi boots to MBR disks. The normal problem with that is for MS-Windows, which decided that UEFi boots would require GPT on their 64-bit OS, so some computer/MB vendors only support that mode and ignored the standards.
    2. Depends. UEFi can provide fresh firmware for different chips on the MB and for the CPU that otherwise would need a to be re-flashed the old-school way we did it in 2005 - from a boot floppy/usb flash drive running MS-DOS or FreeDOS.
    3. Yes, but really going with GPT should be the default these days.

  3. #3
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    Re: Questions viz. UEFI enabled post Ubuntu Mate installation while the Partitioning

    Thank you. Considering Ubuntu MATE is the only OS on this PC and there's no intent of using another OS in conjunction with this one, would you recommend keeping the 'UEFI BOOT Support' as 'enabled' or 'disabled'?

  4. #4
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    Re: Questions viz. UEFI enabled post Ubuntu Mate installation while the Partitioning

    Quote Originally Posted by Saptarshi_Roy View Post
    Thank you. Considering Ubuntu MATE is the only OS on this PC and there's no intent of using another OS in conjunction with this one, would you recommend keeping the 'UEFI BOOT Support' as 'enabled' or 'disabled'?
    It depends. There are very good reasons to choose either BIOS/UEFI, but understand that the OS must be installed in the mode you choose and configure. Switching isn't really possible later. At least that's what I believe.

    The Linux Foundation workstation security standards say to go with UEFI boot + secure boot. There are times when that prevents some handy capabilities last, however. Just depends on the sort of user/admin/tweaker you are. I don't know that, so cannot make a suggestion and you cannot write the 20 pages to explain all the things you do (and don't do) here which would be needed to have the background for a good answer.
    https://www2.thelinuxfoundation.org/...ation_security

    Sorry.

  5. #5
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    Re: Questions viz. UEFI enabled post Ubuntu Mate installation while the Partitioning

    Thank you TheFu.

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