Arch Linux

Rgnk

Member

Registered: 2009-01-11

Posts: 3

[Solved] GPT, grub2 and arch/windows

Hello,

I install a new system with four hard disk, two of them are SSD. I found on wiki, the best partition scheme is GPT for SSD, but i need grub2, i'ts ok. The problem is the compatibility with system boot on windows. The summary is:

SSD1: Arch system (64bit), with /boot, /,  and home. (GPT).
SSD2: With Windows7 (64bit). (MBR?)
Raid0; /var, swap, /tmp, and data.

Doubt is, if the first SSD are GPT, and the second SSD is only for windows, I can use for both grub2?. The system is Bios based.

Sorry for google english.

Last edited by Rgnk (2011-03-16 18:06:26)

skodabenz

Banned

From: Tamilnadu, India

Registered: 2010-04-11

Posts: 382

Re: [Solved] GPT, grub2 and arch/windows

https://wiki.archlinux.org/index.php/GRUB2 and https://wiki.archlinux.org/index.php/GU … tion_Table

I short, yes it is possible to use grub2 installed in SSD1 to boot both Arch in SSD1 and Windows 7 x64 in SSD2. You just have to create you /boot/grub/grub.cfg accordingly.

---

My new forum user/nick name is "the.ridikulus.rat" .

ANOKNUSA

Member

Registered: 2010-10-22

Posts: 2,141

Re: [Solved] GPT, grub2 and arch/windows

It's my understanding that Windows 7 will only boot from GUID if you have a UEFI-based motherboard.  GUID compatiblity was probably more a concession to Mac owners by Microsoft than an actual step forward.

---

Linux != Windows  ::  Ask Questions the Smart Way  ::  Configs

Rgnk

Member

Registered: 2009-01-11

Posts: 3

Re: [Solved] GPT, grub2 and arch/windows

Thanks for reply

Was in doubt, since according to the wiki;

Warning: If you plan to dual boot with Windows (XP, Vista or 7) do NOT use GPT since they do NOT support booting from a GPT disk! You will need to use the depreciated MBR method described below! This limitation doesn't apply if you run an EFI-powered machine and Windows Vista (64bits) or Seven (both 32 and 64bits).

But I figured that this notice is if I install both systems on the same SSD, no installations on separate drives.Is correct?

Rgnk

Member

Registered: 2009-01-11

Posts: 3

Re: [Solved] GPT, grub2 and arch/windows

Hi!

I got everything to work correctly with grub2. Windows is incompatible with GPT, but being on another disk, everything works fine.

Keys were;

* Follow the wiki to detect and use "Fake Raid" (Intel ICH5).
* GPT ready SSD (from other install).
* Configure grub2 with os-prober to detect the Windows install.

Solved!

Thanks for all.