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The default Ubuntu kernel -generic package doesn't seem to have symbols in it.

I'm trying to avoid compile a kernel with debug info manually.

Does Ubuntu provide a package with kernel debug symbols?

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1 Answer 1

up vote 8 down vote accepted

First create a ddebs.list using:

$ echo "deb http://ddebs.ubuntu.com $(lsb_release -cs) main restricted universe multiverse" |
sudo tee -a /etc/apt/sources.list.d/ddebs.list

Then add the GPG key for ddebs.ubuntu.com:

$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys ECDCAD72428D7C01

Then run:

$ sudo apt-get update

Then install the symbols package using:

$ sudo apt-get install linux-image-`uname -r`-dbgsym

This is rather huge (>680MB), so prepare for a wait while you download it.

I use the linux kernel debug symbols for tools like systemtap on the kernel.

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apt-cache search dbgsym returns pkg-create-dbgsym only, was it in some other repository? –  warl0ck Oct 6 '12 at 9:40
1  
@warl0ck Yes, the -dbgsym packages are in special repositories that you must enable, to install them. This explains how. –  Eliah Kagan Oct 6 '12 at 10:15
    
I've now updated the post to clarify how to do that. –  Colin Ian King Oct 6 '12 at 19:22
    
step apt-get update results in a warning message: W: GPG error: http://ddebs.ubuntu.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ECDCAD72428D7C01, that is why I am extending this with a solution for that case. –  Pro Backup Aug 12 at 18:55

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