Can't resize Windows 7 partition for dual boot

RichardNL
RichardNL Member Posts: 4 New User

Hello everyone,

 

Finally the big step has come. I am going to use Linux as my primary OS. I am preparing for a dual boot system on my pre-installed Windows 7 laptop (Acer Aspire 7750G). Windows 7 will only be used for work and some applications. I have made some space on my hard drive. I removed a lot of big media files and such. I have downloaded Ubuntu 15.10 64 bit and installed it on a USB-drive and fired it up to resize my partitions.

This is the current partion table:

ubuntu@ubuntu:~$ sudo parted -l
Model: ATA WDC WD7500BPVT-2 (scsi)
Disk /dev/sda: 750GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Disk Flags:

Number Start End Size Type File system Flags
1 1049kB 17,2GB 17,2GB primary ntfs diag
2 17,2GB 17,3GB 105MB primary ntfs boot
3 17,3GB 750GB 733GB primary ntfs

Warning: The driver descriptor says the physical block size is 2048
bytes, but Linux says it is 512 bytes.
Ignore/Cancel?

ubuntu@ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 698,7 GiB, 750156374016 bytes, 1465149168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x46cf37ce

Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 33556479 33554432 16G 27 Hidden NTFS WinRE
/dev/sda2 * 33556480 33761279 204800 100M 7 HPFS/NTFS/exFAT
/dev/sda3 33761280 1465145343 1431384064 682,6G 7 HPFS/NTFS/exFAT

I have figured out a new partition table:

/dev/sda1   16GB    NTFS    Windows Recovery Environment (loader)
/dev/sda2 100mb NTFS Windows 7 (loader) boot
/dev/sda3 150GB NTFS OS: Windows 7 (this partition needs to be resized
/dev/sda4 300GB ext4 / OS: Ubuntu 15.10 64bit (new partition)
/dev/sda5 8GB SWAP swap (new partition)
/dev/sda6 275GB NTFS /media/shared
TOTAL appr. 750GB

Unfortunately I can't resize /dev/sda3 with gparted and disk management (Windows 7). I even did defrag /dev/sda3.

 

Can somebody help me? I really like to use Linux on my laptop. I posted this message with the USB. It is amazing fast!

 

Greetings, Richard

The Netherlands