how to install maverick 64 over maverick 32 also having W Vista

You cannot upgrade from 32-bit version to 64-bit.

If the intent of using 64-bit system is RAM > 3 GB, you can use the PAE-Kernel and it will recognize all your RAM.

If you surely want to move to 64-bit, you can do a clean install. You'd not lose Windows if everything goes normal.

Please post the output of,

sudo fdisk -l

That will tell us about your partition setup.

Thank you for your reply. I've enclosed the sudo fdisk. I do want the system
to use the extra RAM installed and also the extra band width although I've
yet to decide if I'll go with the 64 bit OS.
I've installed the Pae kernel app "complete generic linux kernel app. Do I
need to do anything with this?

Tks again!
ec

On Sat, Nov 20, 2010 at 5:37 AM, Sikander <
<email address hidden>> wrote:

> Your question #134766 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/134766
>
> Status: Open => Answered
>
> Sikander proposed the following answer:
> You cannot upgrade from 32-bit version to 64-bit.
>
> If the intent of using 64-bit system is RAM > 3 GB, you can use the PAE-
> Kernel and it will recognize all your RAM.
>
> If you surely want to move to 64-bit, you can do a clean install. You'd
> not lose Windows if everything goes normal.
>
> Please post the output of,
>
> sudo fdisk -l
>
> That will tell us about your partition setup.
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.launchpad.net/ubuntu/+question/134766/+confirm?answer_id=0
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/ubuntu/+question/134766
>
> You received this question notification because you are a direct
> subscriber of the question.
>

I can't find the output of fdisk -l in your post.

Instructions on enabling PAE Kernel,

https://help.ubuntu.com/community/EnablingPAE

here is the sudo Fdisk1. I had enclosed this in a txt file.

Disk /dev/sda: 160.0 GB, 160000000000 bytes
255 heads, 63 sectors/track, 19452 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: 0xc3218e14

   Device Boot Start End Blocks Id System
/dev/sda1 * 1 10691 85869478+ 7 HPFS/NTFS
/dev/sda2 10691 19453 70378497 5 Extended
/dev/sda5 10691 19090 67465216 83 Linux
/dev/sda6 19090 19453 2912256 82 Linux swap / Solaris

Disk /dev/sdb: 160.0 GB, 160000000000 bytes
81 heads, 63 sectors/track, 61238 cylinders
Units = cylinders of 5103 * 512 = 2612736 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x41ab2316

   Device Boot Start End Blocks Id System
/dev/sdb1 1 57427 146522360 7 HPFS/NTFS

You can definitely re-install the 64-bit.

Make sure you don't touch sda1 during the installer.

Select Manual partitioning. The only drive you are going to use is sda5. Select it for format, filesystem ext4 and Mount Point /.

You'll also see an option for location of Grub and select sda from that list, not sdb.

Once done, you should be able to dual boot Ubuntu and Windows just as before.

Good Luck!