Ubuntu
update-manager package

Can I download the update to 10.04 now, but install later?

Asked by Jim (JR) Harris

I am currently running Ubuntu 9.10, and I would like to take the upgrade path offered to 10.04 via the update manager.

On my connection, it is going to take a while to download all the packages required, so I like to do things like this when I am away from the computer, asleep, etc. However, I know from past upgrades that the actual upgrade process itself will require some user-intervention - and letting the the computer run unattended for a while usually results in an unsatisfactory upgrade (IMHO).

What I would like to do is to do the very first parts of the upgrade process - check the new software sources, do the calculations, decide what needs to be removed/added/changed - and actually start the download process to put everything in place so that it is ready to begin the "Installing Upgrade" step - and then stop. I would then restart the upgrade process when I have time to sit with the machine - or be near it - to monitor the upgrade process and make whatever interventions are needed.

Any ideas on how to accomplish this?

Second possibility:

Is it possible to download the ISO file for 10.04, and (after verifying it!) loop-mount the image and use THAT as the source for many of the upgrade files? This way, I can download the full up image for my AMD-64 bit machine, and then start the upgrade process at my leisure - only downloading files that have been changed since release, or additional things I've added that get updated.

Again, thoughts would be appreciated.

Jim

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actionparsnip (andrew-woodhead666) said : 		#1

You can download the alternate ISO, MD5 test it then keep it on the system or burn it SLOWLY to CD. You can then mount the ISO or CD and upgrade offline.

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PeterPall (peterpall) said : 		#2

My solution would be: First set the package sources to the ones of the new ubuntu version:

sudo gedit /etc/apt/sources.list

...and replace all occourences of "karmic" by "lucid"

then do a

sudo apt-get update; sudo apt-get dist-upgrade --download-only

This downloads all packages from karmic.

To actually upgrade close all applications and use the update manager or type

sudo apt-get dist-upgrade

into a console.

...two things will fail, though, when they are installed and when upgrading completely without network access:

The flash plugin is not allowed to be provided in a ubuntu package but is allowed to be automatically downloaded and thus is downloaded by the respective package when installing it - and the ttf-mscore-installer will have the same problem.

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