Arch Linux

Tenza

Member

Registered: 2014-08-10

Posts: 10

[Solved] Arch on Asus UX51VZ with Dualboot on RAID0

Shot story short, I bought this notebook, removed Windows 8, disabled secure-boot, enabled CMS, partitioned to MBR and instaled Windows 7 on its RAID0 array.
Now, I want to dual boot with arch; I started by allocating space for it and then I discovered that I have to install it to /dev/md125pX

So, now my confusion is in the bootloader, I want to use GRUB2, but I don't really know what to do, because when I try to use os-prober, it doesn't find my windows installation.
Also, where should I install the bootloader? I mean, when I do grub-install do I put it in /dev/md125 or /dev/md125pX? I guess I will have to chainload with the NT bootloader, I'm not sure.

Some help would be appreciated.

PS: this fake raid array cannot be broken because there is no way to set it up again.

EDIT:
Ok, so a made the initial installation to /dev/md125pX and replaced the NT bootloader with GRUB2 on /dev/md125, so that later I would manually add an entry to chainload with windows.
But now I have a problem, when I finished the installation and rebooted, GRUB showed up as expected, but when it tries to load arch from the partition /dev/md125pX, it says it cannot find the root device and drops me on rootfs.

EDIT2:
I was forgetting to add the hook of mdadm to mkinitcpio, described in here: https://wiki.archlinux.org/index.php/RA … tcpio.conf
After this I was able to boot, and then the os-prober finally found my windows instalation on /dev/md125p1.
Everything is working now.

Last edited by Tenza (2014-09-21 02:59:46)