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Old 10-22-2017, 03:01 PM   #1
hifi100
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Installing new motherboard


hi, I am using openbsd 6.2. tommorow I will be assembling a new pc which will be uefi. presently I have 6.2 installation which I installed using my old PC (bios). what I want to is if I just plug in my old installation to the new uefi board will it work?
 
Old 10-22-2017, 03:41 PM   #2
hifi100
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any ideas?
 
Old 10-22-2017, 03:49 PM   #3
hifi100
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if its not possible how can I recover some files from the installed ssd?

Last edited by hifi100; 10-22-2017 at 04:12 PM.
 
Old 10-22-2017, 06:26 PM   #4
cwizardone
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A couple of months ago I installed a new motherboard/CPU/RAM and the Linux distribution I use, Slackware64, fired right up without a problem. If the BIOS can be set to "Legacy" or "Auto" you might have the same experience.
Good luck.
 
Old 10-22-2017, 06:42 PM   #5
hifi100
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Quote:
Originally Posted by cwizardone View Post
A couple of months ago I installed a new motherboard/CPU/RAM and the Linux distribution I use, Slackware64, fired right up without a problem. If the BIOS can be set to "Legacy" or "Auto" you might have the same experience.
Good luck.
problem is that the motherboard I am planning to buy doesn't seem to have legacy mode (l think). I Googled asus h110 legacy but got no useful results.

Last edited by hifi100; 10-22-2017 at 06:44 PM.
 
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Old 10-22-2017, 08:02 PM   #6
frankbell
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It's been years since I did a motherboardectomy--it was before I used Linux--but, when I did, the installed OS worked just fine.

One suggestion I have is to take a picture of the old board, showing all the connectors and the labels of their ports. It can help making plugging stuff into the new board much easier.
 
Old 10-22-2017, 08:20 PM   #7
colorpurple21859
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Not sure exactly how to do this in openbsd, but this is a rough outline of what you have to to do.
create at least a 200MB partition type EF00 efi partition
create /EFI/boot directory on the efi partition
Then copy some sort of <file>.efi as /EFI/boot/Bootx64.efi.
maybe this will help: https://blog.jasper.la/openbsd-uefi-bootloader-howto/

Last edited by colorpurple21859; 10-22-2017 at 08:22 PM.
 
Old 10-22-2017, 08:23 PM   #8
cwizardone
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Quote:
Originally Posted by hifi100 View Post
problem is that the motherboard I am planning to buy doesn't seem to have legacy mode (l think). I Googled asus h110 legacy but got no useful results.
On my Asus board with a AMI BIOS, the settings can be found
via, Advanced Mode, Boot, Boot/CSM (Compatibility Module).
 
Old 10-23-2017, 11:08 AM   #9
hifi100
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Just finished installing Linux Mint in UEFI mode.
 
Old 10-23-2017, 11:53 AM   #10
colorpurple21859
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Quote:
Just finished installing Linux Mint in UEFI mode.
Did you install over your openbsd or is this a separate installation?
 
Old 10-23-2017, 12:58 PM   #11
hifi100
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Originally Posted by colorpurple21859 View Post
Did you install over your openbsd or is this a separate installation?
Wiped the entire drive and installed Mint.
 
Old 10-30-2017, 09:39 AM   #12
anisoptera
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Probably too late - but for future reference, OpenBSD has supported the creating of GPT partitions with an EFI system partition and installing the necessary boot files, since at least 5.9-release.

However, with an old DOS MBR setup, you'd probably be better of just backing up and reinstalling, as the install would have handled all of this for you and you'd get the benefits of moving to a GPT as well.
 
  


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