apci = off? [solved]

i'm not sure if i spelt that right.
anyway.
i heard that to boot up after the kernel update you can select the older kernel.
i don't seem to have an older one.
i then saw something about changing the bootline.
apci=off
i think.

can someone explain what it does and how to do it?

 

Re: apci = off?

You don't want (or need) to play around with the acpi kernel option as acpi works just fine in the AA1.
Some times such option is needed in order to allow to work with a badly implemented BIOS computer (such as my old Acer TravelMate 4000, which gets unstable due to poor BIOS implementation and hangs randomly at startup, sometimes already inside X and even with Wifi already working).

Which kernel did you updated from and to?! How? If the new kernel works fine, leave as is. Otherwise you may look at the '/boot' directory to see which kernels you have and, if you really want, edit '/boot/grub/menu.lst' with root access and modify it to allow you to boot with the kernels you want (I can't avoid saying this again but; are you sure you need to use the old kernel?).
PS: Notice that editing the 'menu.lst' file can easily leave you to an unbootable system (although quite easy to recover from if you know how). One work of advice; Delete nothing until you know you can.

 

Re: apci = off?

i did the latest update for ubuntu hardy heron.
i just can't boot up.

 

Re: apci = off?

Sorry you're having this problem.
See this post.
When you first boot up, keep hitting escape to enter the grub boot menu. It will say:
Ubuntu 8.04.2, kerenl 2.6.24-23-generic and some other stuff.
Move the cursor down to that line.
Press "e" (without the quotes) to edit the entry.
Move down one line to where it begins "kernel."
Press "e" again to edit that line. Move the cursor to the end of the line. Hit <space> then add

Code:

acpi=off

at the end of the line.
Hit <Enter>
Now hit "b" (without the quotes) to boot.
See the links for a more permanent solution.

Hope that helps.

Tom

 

Re: apci = off?

thanks.
this topic can be locked now.