[Ilugc] Ubuntu 14.04 LTS dual booting with Window 7 Partition problem (Arun Khan)
- From: dhanagopalr@xxxxxxxxx (Dhanagopal R)
- Date: Sat, 30 Jan 2016 12:42:14 +0530
On Thu, Jan 28, 2016 at 8:52 AM, Dhanagopal R <dhanagopalr at gmail.com> wrote:
ubuntu at ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders, total 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
Disk identifier: 0x58c35ab5
Device Boot Start End Blocks Id System
/dev/sda1 63 80324 40131 de Dell Utility
Partition 1 does not start on physical sector boundary. (what is it mean ?
Will it cause any problem while installing ubuntu boot loader?)
/dev/sda2 * 81920 45518847 22718464 27 Hidden NTFS WinRE
/dev/sda3 45518848 784074751 369277952 7 HPFS/NTFS/exFAT
/dev/sda4 784074752 1465145343 340535296 f W95 Ext'd (LBA)
/dev/sda5 784076800 1132236799 174080000 7 HPFS/NTFS/exFAT
/dev/sda6 1132238848 1465145343 166453248 7 HPFS/NTFS/exFAT
$ let x='1465149168 - 1465145343'
$ echo $x
3825 << you have only this many sectors left free on the hard disk.
I don't think there is enough free disk space to install Ubuntu on this
machine.
* I deleted the last partition E, so there was free space @158 Gb for
ubuntu installation.
* If I am not clear, I would like to explain my problem once again without
hijacking the thread.
I am having a Dell Laptop Inspiron 17 Model 3721 with Window 7 64 bit
pre-installed. The configuration are i5 /6gb/ 750gb HDD.
The HDD is having 5 following partitions as per windows disk manager.
1, OEM partion 39mb (Shown as primary)
2, Recovery partition 29 Gb (Shown as primary)
3. C: Primary partition 352 Gb (Primary)
4. D: Logical partition 166 Gb
5, E: Logical partition 158 Gb
In the laptop bios, legacy boot is enabled and secure boot is disabled. My
intention was to install Grub boot loader in the /boot partition and use
the default Windows boot loader by appropriately modifying the entries
using Easy BCD (to overcome any unforeseen problem while the nagging
upgrade to Windows 10 happens). Though I can use Ubuntu, still I need to
keep windows.
To Install Ubuntu 14.04 LTS booted from the DVD, deleted the last partition
E to create free space. As I am already having 3 primary and 1 logical
partitions in the HDD, I created /boot and /root partition as logical
without any problem. When I proceed to create /home partition that too
logical the system was busy for more than 3 hrs and nothing happened. So I
shutdown the system and rebooted to Windows.
To find a solution for this problem, I googled a bit and came across the
following:
The 4-partition limit no longer exists with disks that use the GUID
Partition Table (GPT). <
http://en.wikipedia.org/wiki/GUID_Partition_Table>
GPT supports up to 128 partitions by default and does not include the
concepts of primary, extended, or logical partitions (although many tools
refer to all GPT partitions as "primary partitions," simply because those
tools were written with the older MBR system in mind).
Intel-based Macs, the vast majority of computers that shipped with Windows
8, and some computers that shipped with Windows 7 (particularly beginning
in mid-2011) all use GPT. Most PCs sold before mid-2011 use the older Master
Boot Record (MBR) <
http://en.wikipedia.org/wiki/Master_boot_record> system,
which is limited to four primary partitions, one of which may be an
extended partition that can hold an earbitrary number of logical
partitions. Thus, increasing numbers of readers of this question are likely
to find that there is no problem; if the disk is partitioned using GPT, the
4-partition limit simply doesn't exist.
After reading the above, my questions are whether is it possible to install
Ubuntu by creating all the partitions as logical?
Is it mandatory to have all the Linux partition as primary? If not all,
what partitions should be created as primary?
How to ascertain GUID Partition Table (GPT) is used in a computer ( My
laptop was shilled in 2013)?
Is it possible to change windows primary partition into logical (except C:
the boot partition) using Ubuntu partition utility while installing?
Thank to Arun Khan and others for patiently reading my post and suggestions.
Regards
R.Dhanagopal
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