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I am on an Acer Aspire S5-391, and it previously ran windows 7 with 2 SSD's on a RAID0 configuration.

Long story short, I messed up the MBR on windows,which corrupted it, and I had to reinstall it. For me to do that, I needed to switch my RAID to AHCI, and I have now reinstalled Windows 7 on my 1st SSD (/dev/sda).

Now I am trying to run dual boot Windows/Ubuntu and I am running on a live-usb of v13.10 trying to install it. Problem is: when I try to install Ubuntu, it won't let me access my 2nd SSD (/dev/sdb) and only gives me options to install alongside Windows(Only on /dev/sda).

I have tried reformatting sdb into ext4, and made it an active partition through diskpart in windows, however it still won't show on the installation screen. As of right now, it seems like I can't even touch my 2nd hard drive.

This is what comes up on sudo fdisk -l:

Disk /dev/sda: 128.0 GB, 128035676160 bytes 255 heads, 63 sectors/track, 15566 cylinders, total 250069680 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00071ff6

  Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      206847      102400    7 
HPFS/NTFS/exFAT /dev/sda2          206848   250066943   124930048    7
HPFS/NTFS/exFAT

Disk /dev/sdb: 128.0 GB, 128035676160 bytes 255 heads, 63
sectors/track, 15566 cylinders, total 250069680 sectors Units =
sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512
bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xadcc7bda

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *        2048   250066943   125032448   83  Linux

P.S. I think it says Linux on sdb1 because I tried to go the WUBI route, which kinda worked but I still pretty much couldn't access my 2nd disk.

Any help would be appreciated, I am completely stuck :(

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