[opensuse] Question before an upgrade
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I am now using os 12.3 on a lenovo box bought loaded with Windows 10. I just installed 12.3 over it, destroying the Windows partition. I had never heard of UEFI. I didn't get a grub loader. I must boot from the cd using 'boot from the hard disk." Now I plan to install 13.2. I have folders in /boot for grub, grub2 and grub2efi, which seems just to point to grub2. How do I need to deal with UEFI, if indeed I do. I don't want to screw this up. -- Bob Rea http://www.petard.us http://www.petard.us/blog http://www.petard.us/gallery What do you say to Jesus when he comes again? Where have you been? You said you were coming right back. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
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On 03/15/2016 05:53 PM, Bob Rea wrote:
How do I need to deal with UEFI, if indeed I do. I don't want to screw this up.
Since the computer came with Windows 10, it probably has UEFI firmware. Since you have been running 12.3, and don't know anything about UEFI, I'm guessing that 12.3 is installed for legacy booting. So you probably configured the firmware (BIOS) to use legacy booting. If that's what you did, then the easiest would be to continue with legacy booting mode. Use "fdisk -l" on your hard drive. Check whether it has GPT partitioning or legacy MBR partitioning. If it is legacy MBR partitioning, then you probably have 12.3 running with legacy booting. If you want to do a clean fresh install, I would recommend UEFI. If you are doing an upgrade, then continue as you have been doing. A further check. Look in "/boot/grub2". If there is a subdirectory "x86_64-efi", then you are probably using UEFI. If there is a subdirectory "i386-pc" (I may be slightly off in the name), then you are using legacy booting. If it has both, then you have switched in midstream and should go by the one with the newest timestamp (date). Your install media should be bootable with UEFI mode or with Legacy boot mode. Boot the way that you want to run the system, and the installer should take care of the rest. The chances are that your system is currently set for legacy booting, and the install media will boot that way. How to tell: If you boot the install media with legacy booting, then the boot menu screen has notations for function keys along the bottom. If you boot with UEFI, you will get a grub2 style menu and no function key indicators along the bottom. I'm using UEFI booting, except on older computers that don't support it. On a Lenovo, you should be able to hit F12 during boot, and get a BIOS boot menu to select the install media. Possibly, it will give you a UEFI option and a legacy option. Or, possibly, it will only offer one of those. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
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On Tuesday, March 15, 2016 07:47:25 PM Neil Rickert wrote:
On 03/15/2016 05:53 PM, Bob Rea wrote:
How do I need to deal with UEFI, if indeed I do. I don't want to screw this up.
I'm using UEFI booting, except on older computers that don't support it.
On a Lenovo, you should be able to hit F12 during boot, and get a BIOS boot menu to select the install media. Possibly, it will give you a UEFI option and a legacy option. Or, possibly, it will only offer one of those.
What are the advantages of UEFI boot? -- Bob Rea http://www.petard.us http://www.petard.us/blog http://www.petard.us/gallery What do you say to Jesus when he comes again? Where have you been? You said you were coming right back. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
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On 03/15/2016 08:36 PM, Bob Rea wrote:
What are the advantages of UEFI boot?
Mostly, that it is designed for modern machines and designed to be extensible. The legacy booting was originally designed for a hard drive of capacity no bigger than 32M. There have since been many hacks to keep it going, but it is running out of steam. The most important change is the use of GPT partitioning. The older legacy partitioning cannot handle drives larger than around 2T. Also UEFI booting is designed with the idea of having several bootable operating systems. So you don't have fights to see which os controls the MBR. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
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On 2016-03-16 01:47, Neil Rickert wrote:
On 03/15/2016 05:53 PM, Bob Rea wrote:
How do I need to deal with UEFI, if indeed I do. I don't want to screw this up.
Since the computer came with Windows 10, it probably has UEFI firmware.
Since you have been running 12.3, and don't know anything about UEFI, I'm guessing that 12.3 is installed for legacy booting. So you probably configured the firmware (BIOS) to use legacy booting.
But he is not booting, so he probably did something wrong: |> I didn't get a grub loader. I must boot from the cd using 'boot from the |> hard disk." -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)
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Le 16/03/2016 09:14, Carlos E. R. a écrit :
On 2016-03-16 01:47, Neil Rickert wrote:
On 03/15/2016 05:53 PM, Bob Rea wrote:
How do I need to deal with UEFI, if indeed I do. I don't want to screw this up.
Since the computer came with Windows 10, it probably has UEFI firmware.
Since you have been running 12.3, and don't know anything about UEFI, I'm guessing that 12.3 is installed for legacy booting. So you probably configured the firmware (BIOS) to use legacy booting.
But he is not booting, so he probably did something wrong:
|> I didn't get a grub loader. I must boot from the cd using 'boot from the |> hard disk."
or he uses uefi install and didn't change the boot order in UEFI firmware? for the OP: can you see your openSUSE install in the boot menu? jdd -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (4)
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Bob Rea
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Carlos E. R.
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jdd
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Neil Rickert