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Thread: UEFI or Legacy boot?

  1. #1

    Default UEFI or Legacy boot?

    Hi there!
    I just got a Lenovo G500, which comes with Windows 8 preinstalled. I'd like to install openSUSE 13.1 via DVD alongside Windows 8, but here's the question: should I configure the bios in order to use Legacy boot instead of UEFI? I know openSUSE supports UEFI, I just don't get if using Legacy will make things easier or not.
    And what if I wanted to remove Windows and leave all the space to openSUSE? Would that make any difference in choosing how to boot?
    Thanks a lot guys!

  2. #2
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    Default Re: UEFI or Legacy boot?

    On Sat 14 Dec 2013 12:46:02 PM CST, Codalunga wrote:


    Hi there!
    I just got a Lenovo G500, which comes with Windows 8 preinstalled. I'd
    like to install openSUSE 13.1 via DVD alongside Windows 8, but here's
    the question: should I configure the bios in order to use Legacy boot
    instead of UEFI? I know openSUSE supports UEFI, I just don't get if
    using Legacy will make things easier or not.
    And what if I wanted to remove Windows and leave all the space to
    openSUSE? Would that make any difference in choosing how to boot?
    Thanks a lot guys!


    Hi
    I would leave it as it is, even without another OS installed. You
    should use the existing efi partition and set openSUSE to 'not format'.

    I would suggest if contemplating upgrading windows to 8.1 to do it now
    AFAIK, it creates another partition during the update.....

    I would suggest booting from a Live CD to ensure all is booting ok
    before the install.

    Don't forget o backup any files etc before installing. The other option
    is to leave the system as is and get another hard drive install that
    and preserve the original.... This is what I did with my HP 2000, then
    just used dd for the winre and recovery partitions to re-install
    windows.

    --
    Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
    SLED 11 SP3 (x86_64) GNOME 2.28.0 Kernel 3.0.101-0.8-default
    If you find this post helpful and are logged into the web interface,
    please show your appreciation and click on the star below... Thanks!


  3. #3

    Default Re: UEFI or Legacy boot?

    Ok, so I'll leave UEFI as it is! I'm planning to upgrade to Windows 8.1 tomorrow, then I'll try to install openSUSE following this guide. I'll let you guys know how it goes!

  4. #4

    Default Re: UEFI or Legacy boot?

    Sorry for the double post, but here's how it went:
    1) I tried to install via EFI. The USB flash drive started, but I was unable to set "no KMS" (the only way in order not to get a black screen after a couple of seconds).
    2) I decided to try the legacy mode
    3) From that, I was able to set no KMS, and the installation went well. I kept the default settings, and installed /, swap and /home on the free space of the drive.
    4) After the reboot, I could only access to Windows 8. The BIOS gave me no options to start from GRUB, so I re-installed openSUSE
    5) This time, I enabled "Boot from MBR" and disabled "Boot from / partition"
    6) After reboot, I was able to enter my brand new openSUSE system

    Since I installed MBR and GRUB2 (instead of GRUB2-EFI), I cannot boot into Windows 8 right from GRUB, but I can still access it with no problem by changing boot order in BIOS and selecting the EFI partition.

    Then I only had a small problem with my Broadcom 43142, which didn't connect right after boot. Installing broadcom-wl and broadcom-wl-kmp-desktop via packman seems to have solved this issue!

    Hopefully this might help some other Lenovo G500 users

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