[9.10] Kernel upgraded, but won't install headers?

littlebigman · 08-23-2010, 05:34 PM

Hello

I'd like to upgrade a live ISO file before burning a new CD.

So, following the instructions in "How to Customise the Ubuntu Desktop CD", I chrooted to the squashfs and ran "apt-get update/upgrade/dist-upgrade", expecting apt-get to upgrade the chroot kernel... only to find out that apparently, even when being chrooted, this command upgrades the actual kernel. I guess it makes sense, but I was under the - wrong - impression that chroot would build a filesystem totally isolated from the underneath host.

So I rebooted to use this new kernel:

Code:

# uname -r
2.6.32-24-generic

Next, since the Nouveau video driver requires the kernel header files, I ran the following:

Code:

# apt-get install linux-headers-$(uname -r)
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package linux-headers-2.6.32-24-generic

According to this link, 2.6.32-24 is apparenty only available for Ubuntu 10.04, ie. Lucid.

I don't understand why apt-get upgrades the kernel but won't install its header files. Can an expert shed some light?

Thank you.

AlucardZero · 08-23-2010, 05:53 PM

What's in /etc/apt/sources.list?

littlebigman · 08-24-2010, 05:07 AM

Here it is: http://pastebin.com/gC9CU9Ct

Incidently, the host is running 10.04, while the ISO image to which I chrooted is 9.10, so I guess I should update the local "etc/apt/sources.list" so that it can find packages for both versions?

Thank you.

littlebigman · 08-24-2010, 06:50 AM

I got it:

1. The underlying host is running Ubuntu 10.04, while the ISO image is running 9.10

2. I'm not sure when I ran "apt-get update/upgrade/dist-upgrade", but logically, it was before chrooting to the ISO, which means that I got the latest kernel for 10.04, which looks like it has a higher version number than what's available for 9.10

3. After chrooting, /etc/apt/sources.list lists depots for 9.10

4. When I ran "apt-get install linux-headers-$(uname -r)", it couldn't find it because it's trying to connect to the 9.10 depot instead of the 10.04

I'm surprised that Ubuntu would provide different versions of the Linux kernel depending on the distribution number. Is it because of some dependencies?

Is it OK to edit 9.10's /etc/atp/sources.list so that it would include the 10.04 depots, or is it asking for trouble? If the latter, is the right way to download the latest kernel + initrd manually for 9.10 and manually add it to the chroot tree before creating a new ISO?

Thank you.