Live CD won't work in Laptop

Asked by Paul Bird on 2008-01-08

I made a live CD of Ubuntu 7.10 (ubuntu_7.10-desktop-amd64.iso) on a desktop PC, for using on an Acer Travelmate 5520 (AMD Athlon 64 bit X2 dual core). I did the MD5 has check on the ISO file (fine), burned it to CD-ROM with Roxio and put the CD into the Acer. The first Ubuntu screen comes up fine (30 sec to choose an option). I choose 'Start or install Ubuntu' and get the loading linux kernel progress box and then 'Kernel alive' and 'Kernel mapping tables etc'. Then there is an error 'MP-BIOS bug: 8254 timer not connected to IO-ACIP'. However it goes on OK to the Ubuntu logo and the moving orange progress bar. Then the screen goes blank with a flashing white underscore character at top left. That's it - it gets stuck there.

I did the 'Check CD for defects' from the start up Ubuntu menu; it was fine.

Any idea what I can do to get Ubuntu to run on the Acer? Thanks.

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arochester (arochester) said : #1

Quite often on laptops you have to boot conditionally with something like noacpi or acpi=off.

I think when it is just starting to boot you press f6 (?) to introduce different commands into boot.

nik_iit (nikhilyagnic280988) said : #2

As u have AMD processor so better try to install by choosing safe graphics mode and then u can get choose better resolutions after the updates are taken .
I also have amd turion and the OS is working fine in it.

Paul Bird (p-bird) said : #3

Thanks for these two suggestions.

Safe graphics mode booted the same as normal - still can't get past the flashing cursor.

The different boot command may be getting close. Putting in "apic=off" didn't make any difference, but "noapic" did. It got a bit further in listing actions in text mode (white on black). It said things like differred execution scheduler OK, periodic installation scheduler OK, and battery state OK. Then it got stuck on "bcm43xx: Error: Microcode "bcm43xx_microcode5.fw". This message is repeated every minute or so.

Maybe some more boot options would do it. Any idea where I can find info on some of these?


Useful kernel boot parameters

"bcm43xx: Error: Microcode "bcm43xx_microcode5.fw"

The message is saying that at boot it is detecting a broadcom 4300 series wireless adaptor, and it can't find the firmware file for it. This is because there is a default driver for that series but no firmware is provided.

On a installed Ubuntu system...: The fix is to use ndiswrapper and load the Windows drivers for the wireless card.

Hope this helps

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