Jan 25, 2013

openSUSE Forums: openSUSE 12.2 on an UEFI Laptop after deleting Win8

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openSUSE 12.2 on an UEFI Laptop after deleting Win8
Jan 25th 2013, 13:47

(This is an approximate translation of my initial post on the french forum. As the latter doesn't seem to be very active, I try here)

Hello everybody,

I'm new to this forum (this is my first post) and on GNU/Linux, so I hope you'll be forgiving...

I bought an Asus UX31A ultrabook (it's new, but was reselled to me after less than a week of use).

My intention is to remove Windows 8 entirely and put openSUSE 12.2 in place.

My problem is that this computer has Windows 8 on it with an UEFI boot. I don't understand nothing about UEFI, but following advice from some other websites (in french) I managed to :
  • disable Secure boot (so that I can boot/install something else than Windoze);
  • disable UEFI Boot (they said that's to install something with BIOS/MBR instead of UEFI/GPT - I don't know what GPT is...)
  • activate Launch CSM (to install my openSUSE in BIOS/MBR mode)
  • and disable Fast Boot.


Now, when I insert my pendrive with openSUSE live (KDE) on it, on restart with ESC key down, I can choose "SanDisk" in the boot menu and access openSUSE in live usb.

But now, before installing openSUSE, I wonder how I must partiton my disk (256GB SSD), so that I don't end with an unusable computer : what will become of UEFI when I've deleted Windows 8 ? Which partitions I should keep, which I'm secure to drop ? Where should I install grub (or whatever bootloader is recommended... ?) ?

So you see, I'm lost...:?

The actual partitions on my disk are as follows (windows partitioning utility) :
  • Partition du système EFI - 300 MB - free: 300 MB
  • Partition de récupération - 600 MB - free: 600 MB
  • Partition OEM - 4.00 GB - free: 4.00 GB
  • Partition de récupération - 20.00 GB - free: 20.00 GB
  • Data (D: Partition principale - 110.93 GB - free: 110.82 GB
  • OS (C: Démarrer, Fichier d'échange, Vidage sur incident, Partition principale - 102.54 GB - free: 71.2 GB


With KDE, I obtain the following information (with one extra partition !?):
Device
Size
Type
FS Type
Label
Start
End
/dev/sda1 300.00 MB EFI boot FAT SYSTEM 0 38
/dev/sda2 600.00 MB HPFS/NTFS NTFS Recovery 38 114
/dev/sda3
128.00 MB
Microsoft reserved
114
131
/dev/sda4 102.54 GB HPFS/NTFS NTFS OS 131 13517
/dev/sda5 110.93 GB HPFS/NTFS NTFS Data 13517 27997
/dev/sda6 4.00 GB HPFS/NTFS NTFS IntelRST 27997 28520
/dev/sda7 20.00 GB HPFS/NTFS NTFS Restore 28520 31129

So, can I delete ALL the partitions (including the UEFI one, as GRUB or something else will boot openSUSE instead), or should I keep some of them ? What partitions do I have to create in this particular situation to have a fully fonctionning GNU/Linux openSUSE distribution on this UEFI machine ?

I know I ask many questions, but UEFI seems fairly new and there's not so much solid information about installing Linux on an UEFI machine.

I hope someone could help me ? Thanks in advance. And as we still are in January, I can wish you all a happy New Year !

Bug.

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