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?

3 Answers

1. First create a ddebs.list using:

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

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

   wget -O - | sudo apt-key add -

3. Then run:

   sudo apt-get update

4. 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.}

7

For 16.04+:

GPG key import

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys C8CAB6595FDFF622 

Add repository config

codename=$(lsb_release -c | awk '{print $2}')
sudo tee /etc/apt/sources.list.d/ddebs.list << EOF
deb ${codename} main restricted universe multiverse
deb ${codename}-security main restricted universe multiverse
deb ${codename}-updates main restricted universe multiverse
deb ${codename}-proposed main restricted universe multiverse
EOF
sudo apt-get update
sudo apt-get install linux-image-$(uname -r)-dbgsym

(credit to Ubuntu Wiki)

I tried Colin Ian King's answer and it did not work for me. I found out I must add two extra lines in /etc/apt/sources.list.d/ddebs.list

Edit the file via

sudo nano /etc/apt/sources.list.d/ddebs.list

and add the two lines below

deb trusty-updates main restricted universe multiverse
deb trusty-proposed main restricted universe multiverse

Replace trusty with your version that you get when you execute

lsb_release -cs

1

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