Upgrade of 10.04 to 12.04

[Chris Robinson]

From: Chris Robinson <fabricator4 at yahoo.com>

To: Geoffrey <gcombes4 at bigpond.com> 
>Sent: Sunday, 29 April 2012 1:45 PM
>Subject: Re: Upgrade of 10.04 to 12.04
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>Because the release upgrade is is automatic, they are mostly done the same way - either through update manager or by apt-get if you prefer command line.
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>The most likely reason you are not getting the option to upgrade through update manager is that you have the box unticked for "check for new release upgrades" or similar in sources.  In this case it will only update the current release, not offer release upgrades.   This is normal - especially for an LTS release, since you probably don't _want_ it to upgrade every time a new release comes out.
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>It's also a fact that on-line release upgrades are risky.  Because there have been so many changes (Unity, Gnome, Compiz etc) the more modified your system the more likely the upgrade will break in some way.  It's also risky from the point of view that if you do have a serious breakage it leaves you without the current LiveCD or LiveUSB to use as a recovery boot disk.  You might have to re-install LTS just to try again or to make the LiveCD for 12.04
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>There's now a second way to upgrade, and that is from a LiveCD or LiveUSB.  When you boot the LIveCD one of the options given is to upgrade the existing system from the CD.  This is much faster to do, since the necessary files have already been downloaded - you don't have to wait hours, biting your nails to find out if upgrade is going to work - you will know in about 15 or 20 minutes.  You also have the bootable LiveCD to fall back on if the upgrade breaks.
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>You should download the relevant ISO for your system (eg 32bit desktop etc) and make the LiveCD or LiveUSB.  You should also backup all of your important data before you proceed with the upgrade.  This is standard operating procedure for anything as serious as a system upgrade.  In the next few weeks we will see people looking for help in the forums and Launchpad who have just had a failed upgrade and want to recover their data any way possible.  I'm also sure that there's many more we _don't_ hear from because they don't having a working system anymore. 
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>I can recommend the LiveUSB as one of the best ways to do it.  CD's burnt with old hardware can be unreliable, especially if want to use them in other computers.  I'd also recommend that you wait a little while before upgrading.  There appears to be a problem with Unity Lens crashing on boot that has not been fixed yet. 
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>Chris
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>>________________________________
>> From: Geoffrey <gcombes4 at bigpond.com>
>>To: Ubuntu-AU <ubuntu-au at lists.ubuntu.com> 
>>Sent: Friday, 27 April 2012 4:53 PM
>>Subject: Upgrade of 10.04 to 12.04
>> 
>>I wish to upgrade from 10.04LTS to 12.04LTS so I consult the Ubuntu
>>website for the simple instructions on how to do so. The
 paper-chase
>>begins.
>>I follow the simple guide via the 'upgrade' link to find: 'Upgrade from
>>Ubuntu 11.10 to 12.04LTS"
>>I go the the link 'read the upgrade notes' (for versions other than
>>11.10). There are many listed but none that refer to upgrading 10.04LTS
>>to 12.04LTS.
>>The paper-chase seems to end here with no result.
>>I believe that upgrading should be done with care using the right
>>instructions depending on the system version being used so I am
>>reluctant to take a punt and mess things up.
>>Surely I don't need to upgrade from 10.04LTS to 10.10, then to 11.04 and
>>then to 11.10 before upgrading to 12.04LTS?
>>I would be grateful for advice from members.
>>PS My Update Manager does not advise that 12.04LTS is ready to load.
>>Geoffrey 
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>>-- 
>>ubuntu-au mailing list
>>ubuntu-au at lists.ubuntu.com
>>https://lists.ubuntu.com/mailman/listinfo/ubuntu-au
>>
>>
>>
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