• kbare at CLUB.CC.CMU.EDU
• Wheezy to Jessie Upgrade

WORK-IN-PROGRESS, DO NOT USE

WARNING: I have not yet tested cascaded wheezy -> jessie -> stretch upgrades. As such, I do not currently recommend upgrading jessie machines that previously ran wheezy.

As of 8/25/2018, it works, but isn't seamless. Take the following steps:

• Add jessie-cclub repo: echo "deb http://debian.club.cc.cmu.edu/debian/ jessie-cclub contrib" >> /etc/apt/sources.list

• apt-get update

• apt-get -t jessie-cclub install cclub-pre-configuration

• apt-get update

• Comment out the line running passwd-update from root's crontab

• DEBIAN_FRONTEND=noninteractive apt-get -o DPkg::options::=--force-confdef -o DPkg::options::=--force-confold dist-upgrade

• Check /etc for .dpkg-dist/.ucf-dist files for configuration that is not managed by the cclub configuration packages; fold-in the Debian changes as appropriate

  • Take make this easier the next time, delete any .dpkg-dist/.ucf-dist files after you've confirmed there are not any changes that need to be folded in

• Check for system users that were changed/added to /etc/passwd

  • There were quite a few where the shell changed from /bin/sh to /bin/nologin—also some new users for systemd

  • Determine the differences by running diff /etc/passwd{.OLD,}

  • Apply them to /etc/passwd.system
• Install the appropriate set of cclub configuration packages

  • VM without AFS:

    • Comment out the lines rsyncing things from rsync's crontab

    • apt-get install cclub-xen-hvm-domu-configuration cclub-passwd-update-configuration cclub-rsync-slave

  • VM with AFS:

    • apt-get install cclub-xen-hvm-domu-configuration cclub-passwd-update-configuration cclub-afs-client-configuration 

  • Other cases:

    • YMMV!

    • (probably): apt-get install cclub-hardware-configuration cclub-passwd-update-configuration cclub-rsync-slave

• apt-get dist-upgrade

• touch /var/lib/cclub-configuration/flags/passwd-update-configured

• Copy any newly added users (in /etc/passwd or /etc/passwd.OLD) to /etc/passwd.system no longer needed with cclub-passwd-update-configuration >= 1.2

• mv /etc/pam.d/login.dpkg-dist /etc/pam.d/login no longer needed with cclub-base-configuration >= 1.5

• dpkg-reconfigure cclub-base-configuration no longer needed with cclub-base-configuration >= 1.5

• (optional): apt-get clean

• (optional): apt-get autoremove

If we're doing upgrades like this frequently, I can look into scripting parts of the process.