recent install 11.04 will not boot

[I_need_your_help]

Hi, I just tried installing ubuntu from a bootable usb stick on my windows 7 desktop. I wanted to create a dual boot system. After repartitioning my drive and installing all the necessary files ubuntu will not boot from the grub startup menu. I tried reinstalling ubuntu from the usb drive but the same result happened. I am however able to boot up with ubuntu with the USB stick. I ran sudo fdisk -l and got the following results:


ubuntu@ubuntu:~$ sudo fdisk -l

Disk /dev/sda: 640.1 GB, 640135028736 bytes
255 heads, 63 sectors/track, 77825 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x7830332a

Device Boot Start End Blocks Id System
/dev/sda1 1 1698 13631488 27 Unknown
/dev/sda2 * 1698 68013 532678839 7 HPFS/NTFS
/dev/sda3 68013 77826 78819329 5 Extended
/dev/sda5 76786 77826 8351744 82 Linux swap / Solaris
/dev/sda6 68013 75746 62114816 83 Linux
/dev/sda7 75746 76786 8347648 82 Linux swap / Solaris

Partition table entries are not in disk order

Disk /dev/sdb: 4041 MB, 4041211904 bytes
128 heads, 63 sectors/track, 978 cylinders
Units = cylinders of 8064 * 512 = 4128768 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x04dd5721

Device Boot Start End Blocks Id System
/dev/sdb1 * 1 979 3946464+ c W95 FAT32 (LBA)
Partition 1 has different physical/logical endings:
phys=(977, 127, 63) logical=(978, 101, 37)



I also took a picture of what it says when I boot up in recovery mode.I guess I don't know what to do at this point. I don't have a lot of troubleshooting experience. Any assistance would be greatly appreciated.

Thanks!

[I_need_your_help]

Does anybody have any suggestions? I really don't know how to solve the problem.

[wojox]

Fresh download ( preferably from the torrents ) and reburn at a low rate and try to install again.