Installer doesn't see the disk

[lkuczera]

Hi All.
I have trouble installing ubuntu on my desktop machine. I had Mint before, reinstalled Win7 and wanted to upgrade to newest release as I didn't use Linux for some time. Basically fdisk can see the disk but installer don't :(

cfdisk (util-linux-ng 2.17.2)

Disk Drive: /dev/sda
Size: 1000204886016 bytes, 1000.2 GB
Heads: 255 Sectors per Track: 63 Cylinders: 121601

Name Flags Part Type FS Type [Label] Size (MB)
------------------------------------------------------------------------------
sda1 Boot Primary FAT16 222.09
Pri/Log Free Space 27645.17
sda5 Logical NTFS [] 53242.24
sda6 NC Logical NTFS [] 118943.09*
Logical Free Space 2.69*
sda7 Logical NTFS []] 800145.02*
Logical Free Space 2.00*


https://lh4.googleusercontent.com/_eEvLBBNfRZ8/TWaVInYDMPI/AAAAAAAAEQU/1UNd9nPw4Lg/s288/Screenshot-Install.png

[dino99]

follow this little help to prepare your installation:

http://ubuntuforums.org/showpost.php?p=10161428&postcount=2

[lkuczera]

I can't create three partitions. I have already extended partition created that I don't want to resize. I have created one primary ext4 partition and swap. Still the same.

[srs5694]

The link dino99 provided is likely to be useless. There are several problems that can produce the symptoms you report, the three most common being a corrupt partition table, leftover GPT data on an MBR disk, and leftover RAID data on a disk that's no longer part of a RAID array. I've got a Web page on the first possible cause, (http://www.rodsbooks.com/missing-parts/index.html) although it focuses on one specific sub-cause. Perhaps it will help. If not, or if you need more advice, boot the installer into the "try before installing" mode, open a Terminal window, and type the following command:



sudo fdisk -lu


Post the results here, being sure to precede the output by a
tag and follow it by a tag. This command will provide details on the partition table, enabling us to see what's wrong, and offer specific recovery suggestions, if it's either of the first two causes.

[lkuczera]

Maybe thats because extended partition is /dev/sda2 ?


ubuntu@ubuntu:~$ sudo fdisk -lu

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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: 0xf91c1807

Device Boot Start End Blocks Id System
/dev/sda1 * 63 433754 216846 6 FAT16
/dev/sda2 54428220 1953520064 949545922+ f W95 Ext'd (LBA)
/dev/sda3 434176 50329599 24947712 83 Linux
/dev/sda4 50329600 54427647 2049024 82 Linux swap / Solaris
/dev/sda5 54428283 158416964 51994341 7 HPFS/NTFS
/dev/sda6 158418944 390727679 116154368 7 HPFS/NTFS
/dev/sda7 390732993 1953516161 781391584+ 7 HPFS/NTFS

Partition table entries are not in disk order

[lkuczera]

I have created extended partition as well but didn't help neither.