Trying to dual boot Ubuntu and Windows 7, Win7 installed first

[dismas]

Hi, I'm trying to dual boot Ubuntu and Win7, with Win7 installed first. I shrunk my Win7 partition to get 100 GB free space. However, I am unable to select that partition when trying to install Ubuntu. This is a laptop. The current partitions are Windows 7, the empty partition, and two HP partitions (for recovery or something). Why can't I install Ubuntu to the 104857 MB partition? Thanks for your time.


http://i.imgur.com/tADng.png

http://i.imgur.com/It1M5.png

[aytech]

Create a separate partition with Gparted. then you should have the option "Use the largest available free space".

[Rubi1200]

According to the second screenshot you already have 4 primary partitions which is the maximum allowable. That is why you are unable to install to the space you created.

This is my suggestion:
Use the LiveCD and post the results of the bootscript linked to at the bottom of my post, then we can advise you further.

[dismas]

RESULTS.txt:

Boot Info Script 0.55 dated February 15th, 2010

============================= Boot Info Summary: ==============================

=> Windows is installed in the MBR of /dev/sda
=> Syslinux is installed in the MBR of /dev/sdb

sda1: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs: /bootmgr /Boot/BCD

sda2: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files/dirs: /bootmgr /boot/BCD /Windows/System32/winload.exe

sda3: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs: /bootmgr /boot/bcd

sda4: __________________________________________________ _______________________

File system: vfat
Boot sector type: Vista: Fat 32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

sdb1: __________________________________________________ _______________________

File system: vfat
Boot sector type: Fat32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

=========================== Drive/Partition Info: =============================

Drive: sda ___________________ __________________________________________________ ___

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

Partition Boot Start End Size Id System

/dev/sda1 * 2,048 409,599 407,552 7 HPFS/NTFS
/dev/sda2 409,600 727,175,167 726,765,568 7 HPFS/NTFS
/dev/sda3 931,975,168 976,560,127 44,584,960 7 HPFS/NTFS
/dev/sda4 976,560,128 976,771,119 210,992 c W95 FAT32 (LBA)


Drive: sdb ___________________ __________________________________________________ ___

Disk /dev/sdb: 8011 MB, 8011120640 bytes
41 heads, 41 sectors/track, 9307 cylinders, total 15646720 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sdb1 * 8,064 15,646,719 15,638,656 b W95 FAT32


blkid -c /dev/null: __________________________________________________ __________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/sda1 0E2CEA222CEA0515 ntfs SYSTEM
/dev/sda2 026EFFF36EFFDD7B ntfs
/dev/sda3 68B2CE20B2CDF31C ntfs RECOVERY
/dev/sda4 DCD8-07D2 vfat HP_TOOLS
/dev/sda: PTTYPE="dos"
/dev/sdb1 14D5-D83A vfat PENDRIVE
/dev/sdb: PTTYPE="dos"

============================ "mount | grep ^/dev output: ===========================

Device Mount_Point Type Options

aufs / aufs (rw)
/dev/sdb1 /cdrom vfat (rw,relatime,fmask=0022,dmask=0022,codepage=cp437, iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/loop0 /rofs squashfs (ro,noatime)