LinuxQuestions.org - How to figure out 64 or 32 bit

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How to figure out 64 or 32 bit

Hello, I have been using Ubuntu 10.10 netbook edition. Since I have a heavy duty 64 bit chip-set on my laptop laptop I decided to give the desktop amd version a go but found very unstable. For example. on one occasion my dual boot-loader got corrupted and had to reinstall both windows and Ubuntu. On another occasion as soon as I plugged in a USB device I lost all my desktop icons after a reboot., in addition to system frequently freezing when more than two applications are running. Netbook version has proven over time to be much more robust.

Anyway, I reverted back to my original netbook. In this post I only need to know how to figure out if this Ubuntu edition is 32 or 64 bit. There is no information about this on the download site. Alternatively where would I find a stabler 64 bit version.?

Once it is installed, you can type 'uname -a' or are you looking to identify what it is before you download it?

You may want to look at the 10.04 LTS release. As it's a Long Term Support release, it's much more stable than the current release (although myself has found 10.10 to be very stable of late now that it's getting ready to go away).

This is what I am getting on my installed system. It doesn't mention anything about amd or 64 bit.

Code:



siawacsh@siawacsh-sager:~$ sudo uname -a

[sudo] password for siawacsh: 

Linux siawacsh-sager 2.6.32-30-generic-pae #59-Ubuntu SMP Tue Mar 1 23:01:33 UTC 2011 i686 GNU/Linux

siawacsh@

Quote:

Originally Posted by siawash (Post 4321340)

This is what I am getting on my installed system

Code:



siawacsh@siawacsh-sager:~$ sudo uname -a

[sudo] password for siawacsh: 

Linux siawacsh-sager 2.6.32-30-generic-pae #59-Ubuntu SMP Tue Mar 1 23:01:33 UTC 2011 i686 GNU/Linux

siawacsh@

Its a 32 bit kernel.

Thanks I see that now. It's a pity since the netbook is so well put together. I like the desktop arrangement which I have not seen in the desktop version. I guess I will try the 10.04 LTS release as soon as I get the chance.

Thanks

Forgot to mention, only the netbook could recognize my web cam. Desktop 10.10 could not. I hope 10.04 would recognize both web cam and microphone. I have had to use windows to have video chat on skype.

If you download the 10.04 ISO, you can boot it directly from grub and have it boot right up without even burning to a CD or anything. If you are installed (your current installation) on one partition you can just point grub at the ISO. If you are on 2 partitions you needto put htte ISO on the root partition.

I use a file I created in my /etc directory (/etc/aa easy to find and close to /etc/grub.d so I can switch back and forth to check my spelling).

If you want to use this menu entry it will need edited to match your partition numbers and file path. Do;

Code:

sudo gedit /etc/grub.d/40_custom

copy paste this in there;

Code:

echo "Adding Lounge Lizard 10.04-2 ISO on sda9" >&2 

cat << EOF

menuentry "Lounge Lizard 10.04-2 ISO on /dev/sda9" {

loopback loop (hd0,9)/etc/aa/lucid-desktop-amd64.iso

linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=/etc/aa/lucid-desktop-amd64.iso quiet noprompt 

initrd (loop)/casper/initrd.lz

}

EOF

If you are on one partition that should probably read;

Code:

echo "Adding Lounge Lizard 10.04-2 ISO on sda9" >&2 

cat << EOF

menuentry "Lounge Lizard 10.04-2 ISO on /dev/sda9" {

loopback loop (hd0,1)/home/<user>/downloads/lucid-desktop-amd64.iso

linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=/home/<user>/downloads/lucid-desktop-amd64.iso quiet noprompt 

initrd (loop)/casper/initrd.lz

}

EOF

run;

Code:

sudo update-grub

run;

Code:

sudo grub-mkconfig

to check that it looks right in your /boot/grub/grub.cfg file. That is the file that is generated to produce your screen menu.

A handy link that anyone interested in Ubuntu should have;
http://cdimage.ubuntu.com/

Oh, and one more thing, have FUN.