Kubuntu 12.04 Precise Thoughts

[The Liquidator]

Okay so let me make sure I have it straight.

You were running 11.04? That appears to be the issue. My reading of the documentation

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

Would appear to suggest that you can only upgrade to 12.04 from either 11.10 or 10.04 LTS. So if you wanted to do an upgrade to 12.04 you would have to first upgrade it to 11.10.

IMHO that would at this stage probably be a pointless exercise. A fresh install of 12.04 will be better. Back up your home directory first - if its not on a separate partition it will be wiped by a fresh install.

Have you not at any time been able to boot from the DVD you have burned? If that is the case logic says you need to

1. Do an md5sum check on the 12.04 image you have downloaded
2. Burn another DVD at the slowest possible speed.

However as an aside you might also like to consider this. Did you burn the downloaded file as a disk image or did you simply burn the download to DVD? If the latter that would perfectly explain the failure to boot. If so, right click on the downloaded file and select "create disk image with K3b".

[james147]

thanks, I will try this stuff.

lsb_release -a tells me that it unbuntu 12.04 LST but not if it is 32 or 64

if I find that the system d/l the 32 bit version, is it
just simpler to delete the system on the hard disk, so maybe it will boot
from the DVD? I went into the boot menu, and selected DVD but it went
ahead and booted the previous version. and there doesn't seem to be a
setup or installer on the
DVD, so all I could do saw view the files therein.

uname -m

will tell you what architecture you are running on. But note that you cannot upgrade a 32bit (x86) computer to 64bit (x86_64) without doing a complete reinstall.

[bobk]

I think once you run the lsb_release-a command it will be immediately apparent whether you have 32 or 64 bit. Hopefully because the command devel-release-command is itself an upgrade, if your DVD was 64bit the upgrade will be too.

I've never used kubuntu dvd before but it does appear to be a "live" version so I can't see why you can't boot from it (although you presumably could the first time you tried it).

However, looking at the instructions it says you get a boot prompt at which you need to type "live". Are you skipping that step by any chance?

I didn't see a boot prompt, it just went to the blue screen with the logo. then booted into 11.04, I guess I will try to install something 64 bit, and see what happens...thanks for your insights.

[The Liquidator]

I think once you run the lsb_release-a command it will be immediately apparent whether you have 32 or 64 bit. Hopefully because the command devel-release-command is itself an upgrade, if your DVD was 64bit the upgrade will be too.

I've never used kubuntu dvd before but it does appear to be a "live" version so I can't see why you can't boot from it (although you presumably could the first time you tried it).

However, looking at the instructions it says you get a boot prompt at which you need to type "live". Are you skipping that step by any chance?

[Teunis]

Does your bios have the option to boot from the optical disk drive?
If so make sure it is set before/above the HDD.

If you have the option it's in my view easier to make a bootable USB thumb drive and boot from it.

[bobk]

If you downloaded the the 64 bit beta 2 then that's what you will have installed from your DVD. In running the devel-release-upgrade command I think you may have upgraded to (ahem) the beta 2 i.e simply re-dowloaded what you already had. That command is only used to upgrade from a prior version (eg 11.10) to the 12.04 beta.

To keep pace with updates of 12.04 you simply need the following commands:

sudo apt-get update

This updates the package list

sudo apt-get dist-upgrade

This downloads and installs any updated packages.

You may have downloaded the beta but using these commands will ensure you keep up to date, so you will not need to download 12.04 when it is properly "released" tomorrow, as you'll already be there.

To check your version, type

lsb_release -a



Hope this helps

thanks, I will try this stuff.

lsb_release -a tells me that it unbuntu 12.04 LST but not if it is 32 or 64

if I find that the system d/l the 32 bit version, is it
just simpler to delete the system on the hard disk, so maybe it will boot
from the DVD? I went into the boot menu, and selected DVD but it went
ahead and booted the previous version. and there doesn't seem to be a
setup or installer on the
DVD, so all I could do saw view the files therein.

[The Liquidator]

If you downloaded the the 64 bit beta 2 then that's what you will have installed from your DVD. In running the devel-release-upgrade command I think you may have upgraded to (ahem) the beta 2 i.e simply re-dowloaded what you already had. That command is only used to upgrade from a prior version (eg 11.10) to the 12.04 beta.

To keep pace with updates of 12.04 you simply need the following commands:

sudo apt-get update

This updates the package list

sudo apt-get dist-upgrade

This downloads and installs any updated packages.

You may have downloaded the beta but using these commands will ensure you keep up to date, so you will not need to download 12.04 when it is properly "released" tomorrow, as you'll already be there.

To check your version, type

lsb_release -a

Hope this helps

[bobk]

64 bit?

I d/l the 64 bit version, and burned it to dvd. then I couldn't figure out how to get to start to update.
so I did a search, and came up with a instruction, that had me run a comand "kubuntu-devel-
release-upgrade" it started to upgrade. I left it run for a while, and when I went back, it was still
updating, after a very long time. it seems that it didn't update from the DVD, but is re downloading
everything...I hope it was smart enough to do the 64 bit, or I have wasted a evening....

how can I find out what verison I now have? is there a properties, like windows, that tells me
system info?

thanks:eek:

[jlittle]

I use Trolltech.conf to speed up the blink rate in konsole: cursorFlashTime=350 in the [qt] section. The other two sections in mine are [Qt Plugin Cache 4.7.false] and [Qt Factory Cache 4.7].

KDE's system settings, mostly stored in ~/.kde/share/config/kdeglobals, omits this setting, presumably because it doesn't quite fit into any of its categories. Took me a long time, ahem:roll:, to find how to set that.

[SteveRiley]

Best I can tell, that file caches a variety of Qt settings. But it isn't authoritative for anything, so deleting it doesn't cause a problem.

[MoeNeigh]

Thanks, GreyGeek. The "Trolltech.conf" was actually just a file directly in the ~/.config folder, but was not in its own subfolder. It makes me think it is being generated somewhere else maybe, because it keeps reappearing even after it is deleted. Still curious why its presence would have such a slowing effect on the standard KDE Plasma workspace. When that file is removed, files and programs load quickly again.

[GreyGeek]

Trolltech is the name of the company which created Qt around 1997 or so. Nokia bought them out a few years ago. KDE is built using the Qt API.
In your context it is the name of a folder under ~/.config which contains the Qt developer tools configuration files. If you use QtCreator and modify a UI then you will see "Designer.conf" under the Trolltech folder.

[bobk]

64 bit upgrade

OK cool, I am going to DL it now. I am hoping it plays better with win 7 comps on the network...

thanks,,,,

I d/l the 64 bit version, and burned it to dvd. then I couldn't figure out how to get to start to update.
so I did a search, and came up with a instruction, that had me run a comand "kubuntu-devel-
release-upgrade" it started to upgrade. I left it run for a while, and when I went back, it was still
updating, after a very long time. it seems that it didn't update from the DVD, but is re downloading
everything...I hope it was smart enough to do the 64 bit, or I have wasted a evening....

[MoeNeigh]

I've been using the Kubuntu Precise Beta 2 for a few days now and I really like it. I upgraded from Oneiric where I had at that time installed both the Ubuntu and Kubuntu desktops. Anyway, after the upgrade, I had to use the KDE plasma failsafe mode for a while because the regular plasma workspace software and widgets were loading too slowly. The screen was redrawing slowly as well. The weather widget simply would not get its data; yet in failsafe mode it did, and everything else loaded quickly and beautifully.

What I found out was if I removed "~/.config/Trolltech.conf", everything was fine again in the normal KDE plasma workspace. I've been trying to figure out just what Trolltech is. It appears it may have something to do with mobile phones, and I'm using a desktop PC. Does anyone know about this. Anyway, the file keeps coming back, and I finally set up a script to delete it on login. Otherwise, this is one of the greatest Kubuntu versions yet!

[bobk]

64 bit

With 16GB of RAM I'm pretty sure it's a 64-bit computer.
And what I know of the i3 it's generally sold as a 64-bit processor.
http://en.wikipedia.org/wiki/Intel_Core

The AMD part in the name of the 64-bit Ubuntu's has to do with the protocol used, it was developed by AMD and later became the industry standard for *68 processors.
Because Intel likes to be standard compliant I'm sure the 64-bit (AMD) version of Kubuntu runs on your computer

OK cool, I am going to DL it now. I am hoping it plays better with win 7 comps on the network...

thanks,,,,