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Accepted
daisy
Asked: 2012-10-06 22:31:26 +0800 CST

How to install a package that contains Ubuntu kernel debug symbols?

  • 772

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?

kernel

3 Answers

  1. Best Answer

    1. First create a ddebs.list using:

      echo "deb http://ddebs.ubuntu.com $(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 - http://ddebs.ubuntu.com/dbgsym-release-key.asc | 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.

    • 27

  2. 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 http://ddebs.ubuntu.com trusty-updates main restricted universe multiverse
deb http://ddebs.ubuntu.com trusty-proposed main restricted universe multiverse

    Replace trusty with your version that you get when you execute

    lsb_release -cs
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  3. 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 http://ddebs.ubuntu.com/ ${codename}      main restricted universe multiverse
deb http://ddebs.ubuntu.com/ ${codename}-security main restricted universe multiverse
deb http://ddebs.ubuntu.com/ ${codename}-updates  main restricted universe multiverse
deb http://ddebs.ubuntu.com/ ${codename}-proposed main restricted universe multiverse
EOF

sudo apt-get update
sudo apt-get install linux-image-$(uname -r)-dbgsym

    (credit to Ubuntu Wiki)

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