dual boot installation with wiin7 and ubuntu 12.0.4

Asked by srinivas

I have a lenovo series laptop having 750 GB HDD, i had reserverd 300 Gb space for win 7 installation and i had assign the rest of space for ubuntu 12.04
The problem is i had installed win 7 and it was working fine then i had installed ubuntu 12.0.4 by making the partiition like
8gb for swap area because laptop has 4Gb RAM and 400 gb for / and 100 mb for bios reserved boot. the installation was done successfully. but i am not getting the dual boot menu option while system booting up, win 7 is directly booting up and also i have tried to come out from this using Easy BCD tool this tool is unble to find ubuntu boot loader.

can u help me to fix it

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Anton Kanishchev (ak12-deactivatedaccount) said :
#1

To install ubuntu manually you need to specify the following partitions in order
/boot
Swap
Root
Home
Not really a fix but you could let ubunu install itself automatically and then resize the swap partition (which is not too hard). You might have missed something and the boot loader has not replaced the windows boot loader.
Hope this helps

----- Reply message -----
From: "srinivas" <email address hidden>
To: <email address hidden>
Subject: [Question #196456]: dual boot installation with wiin7 and ubuntu 12.0.4
Date: Tue, May 8, 2012 10:01

Question #196456 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/196456

Description changed to:
I have a lenovo series laptop having 750 GB HDD, i had reserverd 300 Gb space for win 7 installation and i had assign the rest of space for ubuntu 12.04
The problem is i had installed win 7 and it was working fine then i had installed ubuntu 12.0.4 by making the partiition like
8gb for swap area because laptop has 4Gb RAM and 400 gb for / and 100 mb for bios reserved boot. the installation was done successfully. but i am not getting the dual boot menu option while system booting up, win 7 is directly booting up and also i have tried to come out from this using Easy BCD tool this tool is unble to find ubuntu boot loader.

can u help me to fix it

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Jeet (gour-jitendrasingh) said :
#2
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srinivas (srinivasa-g) said :
#3

Thanks ,
but still i have the same problem this time i have made few changes as follows.
Total available HDD size is 700 GB where i reserved 100 Gb for win 7 i made the partition like
c drive 100 GB (further os automatically created 2 primary partition one is 100mb for EFI system partition & other is primary hidden partition)
For linux i partitioned as /boot 300mb begining
                                  /root 400gb begining
                                  /home 192gb begining
                                  swap area 7+gb
I did ubuntu 10.10 installation it went successfully and restartd again win7 is booting directly i m not getting boot menu option to boot ubuntu even i have tried with Easy BCD tool it says no os entries,

please help me

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Jeet (gour-jitendrasingh) said :
#4

ok you need to update grub.

i think you can follow this link according to your current installation

http://ubuntuforums.org/showthread.php?t=1581099

it will defiantly helpful for you

Thanks

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