hi
i am trying to run kubuntu 9.04 on my laptop (not dual boot or wubi) and i have a problem that it freezes on boot unless its plugged in.
Can anyone help me.
Its a HP g6030ea laptop

Can you reproduce this, then boot with power, go to /var/log/ and give us a copy of dmesg.0 please- lets see what acpi is saying

okay so do you want me to boot in without the power cord in? i can get it to boot but i need to hold a button for this to happen.

Also i have tried the acpi=off thing and it worked once put the power managment tool disapeared so i made a choice of knowing how long i had left in the battery vs the boot issue

so can you please answer my question please. What exactly are you wanting me to do. Boot in without the power cord plugged in,can get it to do this by pressing any button on the keyboard,and do the dmesg thing?

badber89:

Before we can arrive to a good solution for you we need important information about your situation.
Can you post here the answers:

How much Random Access Memory (RAM) does your laptop have?
What is the Processor and its speed?
How much hard drive memory it has?

Was the Kubuntu properly installed? How long have it been running? What was the last event before this problem occurred?

The installer media, was the CD good? Did you check the md5 hash from the site where you have downloaded the CD image?

Have you tried reinstalling the Kubuntu?

The answers are needed, it will help us give you an effective answer.

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its a HP G6030ea with 1gb of ddr2 ram and a 160gb HD and a 64bt dual core AMD processor (turion i believe im in work so not too sure about that one)
The install was done properly and i have reinstalled Kubuntu 4 times now the cd was fine
i dont know how to check the md5 thingy you have mentioned.
I have noticed that this may be a known bug to do with the processor but i have no idea. I have also seen some comments elswhere that other Linux os's may not have this bug but i like Kubuntu.
Please note i didnt have this problem when i had Vista on my laptop and i installed XP once and didnt have the issues.

Hi,
i booted into recovery mode with the laptop unplugged and it stalled at
begin: Running /scripts/init-premount
i have no idea if it will conintue to boot after a few minutes cos im impatient though

so can no one help me?

Just curious, have you tried booting using other live CD's for different distros, to see if the same problem happens?

I am not a Ubuntu/Kubunu user, but you can access old log's from prior boots in /var/log.
From there you might be able to check old logs to see if anything was recorded prior to freeze.

But your problem could be related to the powersave(??) utility!
Try disabling the powersave when plugged in, then unplug and see if it freezes.

cheers i will give it a go. i have done a bit of looking about and it seems its a known issue with the amd64bit processors. Im gonna move onto fedora 11 next week to give that a go see what happens there. Luckily i still have a working desktop