4 Ways to Upgrade to Ubuntu 11.04 Natty Narwhal(online/offline)

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The next Ubuntu version 11.04 Natty Narwhal is coming soon, if you intend to upgrade to 11.04 from current Ubuntu version there are 4 ways you can choose including online and offline upgrading.

Note: Make a backup of the sources, softwares, and important data, upgrade may cause something incompatible.

Online upgrading

1.) GUI upgrading with update-manager

This is the most normal way to upgrade Ubuntu to next version, just run this command to launch update-manager:

sudo update-manager -d

You can see this window with available Ubuntu release, click Upgrade to start.

2)upgrading in command line interface(CLI)

Edit /etc/update-manager/release-upgrades by

gksudo gedit /etc/update-manager/release-upgrades

change:

Prompt=lts

to:

Prompt=normal

save the file and then execute:

sudo do-release-upgrade -d

it asks to change sources in source.list while upgrading, just enter y and it upgrades automatically.

Offline upgradeing

3.) Since Ubuntu 11.04 Natty, Ubuntu Live-CD supports upgrading from the previous Ubuntu installation. Download the Ubuntu 11.04 iso and create a Live-CD or Live-USB, then boot from the device, if you have a Ubuntu installed on machine there’s an upgrade option in the installation guide

4.) offline upgrading using alternative iso

Download the alternative iso image(not normal iso image) from: http://cdimage.ubuntu.com/daily/current/

Then mount the image(change PATH/TO/ISO):

sudo mount -t iso9660 -o loop PATH/TO/ISO /cdrom

Finally, start upgrading with:

sudo /cdrom/cdromupgrade

9 users responded in " 4 Ways to Upgrade to Ubuntu 11.04 Natty Narwhal(online/offline) "

bc said, in May 1st, 2011 at 4:33 am

i don’t have the option for upgrading when booting with live cd…
http://www.shrani.si/f/A/2e/ha0D7by/screenshot.png
when i try to upgrade from update manager or using alternate iso i get an “calculating” error and am also unable to upgrade.
http://www.shrani.si/f/2D/2F/1pmr6ckp/screenshotw.png

[Reply]

Mauro said, in May 2nd, 2011 at 3:29 pm

thanks very much

great guide

[Reply]

RKR said, in May 3rd, 2011 at 8:46 am

The last method worked me. Thank you very much. Really a good reference.

[Reply]

bc said, in May 3rd, 2011 at 10:49 am

still not working for me

Checking package manager
Reading package lists… Done
Building dependency tree
Reading state information… Done
Building data structures… Done

Calculating the changes

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade:
E:Error, pkgProblemResolver::Resolve generated breaks, this may be
caused by held packages.

This can be caused by:
* Upgrading to a pre-release version of Ubuntu
* Running the current pre-release version of Ubuntu
* Unofficial software packages not provided by Ubuntu

If none of this applies, then please report this bug against the
‘update-manager’ package and include the files in
/var/log/dist-upgrade/ in the bug report.

Restoring original system state

Aborting

[Reply]

ajith srikukan said, in May 25th, 2011 at 6:54 am

Hi,
when i try with method 3 the option “upgrade Ubuntu from 10.10 to 11.04″ not there.

so i moved to method 4. here also i have a problem. when i call the method “sudo /cdrom/cdromupgrade” it says
“sh: Can’t open /cdrom/cdromupgrade”

any help?

[Reply]

fsp said, in July 1st, 2011 at 1:28 am

work for on method 2…cheers

[Reply]

CML said, in July 13th, 2011 at 6:41 am

Cant upgrade. this is the message

Traceback (most recent call last):
File “/tmp/tmp.qDepleOWOB/natty”, line 3, in
from DistUpgradeMain import main
File “/tmp/tmp.qDepleOWOB/DistUpgradeMain.py”, line 40, in
from DistUpgradeController import DistUpgradeController
File “/tmp/tmp.qDepleOWOB/DistUpgradeController.py”, line 40, in
from utils import country_mirror, url_downloadable, check_and_fix_xbit, ExecutionTime, get_arch, iptables_active, is_child_of_process_name
File “/tmp/tmp.qDepleOWOB/utils.py”, line 26, in
apt_pkg.init_config()
AttributeError: ‘module’ object has no attribute ‘init_config’

[Reply]

Andrew Blake said, in July 25th, 2011 at 2:42 pm

No matter what I do, I only get “New Ubuntu release ’10.10′ is available” in the Update Manager dialog box.

(I am running Ubuntu 10.04, and I’d like to be able to upgrade to the most recent version of Ubuntu, which as of this writing is 11.10)

I have changed everything that can be changed in the “Settings…” area.

Any clues? Is is me?

Thanks

[Reply]