I can’t edit the partitions in the install setup. When I go tyo the Expert Partitioner, I see a hard disk (sda) with no partitions or user devices, and 2 RAID devices:
/dev/md126 with 465.76 GB, not encrypted, type RAID1 (no info for chunk size, parity or file system)
/dev/md127 with 2.2 MB, not encrypted, RAID_UNKNOWN (no info for chunk size, parity or file system)
I didn’t try to do anything in the RAID part because I wanted to preserve Win 7, but I dared to add a partition in the “hard disk” (sda) and I get an error: “the disk is in use and cannot be modified”.
The behavior of Ubuntu 9.1 x64 installation is much alike.
I have googled with every keyword combination I remembered, but I can’t find anything that gives me a clue to what may be happening.
I have already tried the 3 SATA configurations (the IDE that works with the installed Win 7, AHCI and RAID), but the result is always the same. Now the strangest thing is that fdisk and parted correctly identify the partitions. As far as I remember, parted isn’t able to do modifications and fdisk says that the boundaries of the first, tiny partition, doesn’t match the number of cylinders (or something like it). However, I was able create a partition with fdisk on the empty space and format it, delete it again and repeat the process a couple of times with no errors. The partituions are signed as msdos.
GParted from Ubuntu also shows the partitions, but I didn’t try to do any modifications, namely because I don’t think that it can solve my problem and I don’t want to risk installing windows again.
The hardware is brand new, a Asus M4A785Td-V Evo with an Amd Phenom II X4 965 and a WDC-WD5000ACCS-0 500 Gb HD. My lazyness made me asking the guys from whom I bought it to install Win7 Ultimate 64 in a NTFS partition, leaving half the disk untouched. They assure me that it is a “plain vanilla” (“next, next, next”) installation . I guess I could try to see if I could do the partition setup in the “RAID” part of the Expert partitioner, but I have strong doubts that it solves the problem and it would be quite boring to conclude that I ruined the windows installation for nothing.
Could it be any awkward problem specific of the motherboard / SATA controller?
Any input is welcome.