Ubuntu doesn't show windows partitions while dual booting

[pranish]

i have windows 8.1 and I want to dual boot it with ubuntu gnome 14. I have seperated a disk with 50 GB space. I formatted it with NTFS and FAT 32 and also tried to unalocate the space for it. But non of the method worked. The ubuntu installation shows the hard disk as a full 500 GB hard disk. No windows partitions are shown. Please help

[tokyobadger]

Use the ubuntu install media to enter a live session, open the terminal, type sudo fdisk -l (password is ubuntu), copy the output from the terminal, open the browser and reply to this thread pasting the output in code tags

[pranish]

Okay I did that and here is the screen shot of it. Now when I tried to install ubuntu it showed the windows partitions and windows os installed. But I dont know how it happenned. Please can you explain?


Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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: 0xd4cf6e5b

Device Boot Start End Blocks Id System
/dev/sda1 * 2048 718847 358400 7 HPFS/NTFS/exFAT
/dev/sda2 718848 210450431 104865792 7 HPFS/NTFS/exFAT
/dev/sda3 584456832 871898752 143720960+ 7 HPFS/NTFS/exFAT
/dev/sda4 210451505 584456828 187002662 f W95 Ext'd (LBA)
/dev/sda5 210451568 584456828 187002630+ 7 HPFS/NTFS/exFAT

Partition table entries are not in disk order

Disk /dev/sdb: 15.5 GB, 15504900096 bytes
255 heads, 63 sectors/track, 1885 cylinders, total 30283008 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: 0x00000000

Device Boot Start End Blocks Id System
/dev/sdb1 * 2048 30281727 15139840 c W95 FAT32 (LBA)

[tokyobadger]

You have two hard drives /dev/sda and /dev/sdb. /dev/sda looks like your windows install (NTFS file system) - what's on /dev/sdb?

[yancek]

Did you install windows 8.1 or was it pre-installed? You don't seem to have an EFI partition which would indicate windows installed in BIOS mode using MBR. If that is the case, you already have four primary partitions in use taking up the entire drive so there is no space on which to install Ubuntu. You also will NOT be able to get a working Ubuntu/Linux system on a partition formatted ntfs. You do not have any Linux partitions.

[oldfred]

The sda4 is an extended partition with sda5 formatted as NTFS. Ubuntu will not install to a NTFS partition. If partitioning in advance use gparted to change sda5 to ext4 format and maybe shrink a bit to make room for a 2GB swap partition. Or just delete NTFS sda5 partition & Ubuntu should install into unallocated (not formatted) space.

But Windows 8 even in BIOS mode still has the fast startup setting. Which is really always on hibernation. And Linux will not mount NTFS needing chkdsk or hibernated, so then Linux cannot see that you have a Windows install.
Fast Startup off/hibernation
http://www.eightforums.com/tutorials/6320-fast-startup-turn-off-windows-8-a.html
http://www.kapilarya.com/how-to-enable-disable-fast-start-up-in-windows-8

[pranish]

sdb is the usb stick

[pranish]

I installed the windows partition. Well I also thought the problem is with windows loader partition. Whats a system reserved partition? Okay I have listed the things which I did previously in my laptop.1. Once I had installed the windows in partition other than drive C:. So now I have 2 primary partitions.2. I tried to delete "system reserved" drive (and I think it was deleted). But the current windows is installed afterwards.

[pranish]

You mean to say I have to create an "unalocated space" to install linux? I tried it previously while trying to install linux mint. I shutdown windows completely using "shutdown -s" command and then ran linux mint installation using a usb stick. When I tried to open the disk drives, it said cannot access the drive; even though I had shutdown windows properly. I dont know how but this time mint showed the windows partitions, I guess because I had an extended partition. And I chose the unalocated space to install mint but "continue" button was disabled when I chose the unalocated partition. I couldn't figure out whats wrong

[oldfred]

The 100MB system partition with BIOS is where Windows has its boot files. You should not normally delete that partition as then you cannot boot. IF you have copied bootmgr & BCD folder to c: drive then you can still boot, but then also have to move boot flag (active partition in Windows) to the Windows main install or c: drive.
If that is what you deleted and you have no backups it is difficult to recover. As there are no copies of boot files anywhere else.