Ubuntu Upgrade

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This gist provides contextual copy paste options for Distribution upgrades with installed Zammad and PostgreSQL for Debian (10, 11, 12) and Ubuntu (18, 20, 22). Video context to this: https://youtu.be/IXp4VWU27wo

Revision 84d671a6bfc008e73b0e6d3f795322f33d158986

1-general-prerequisites-before-upgrade.sh · 136 B · Bash Raw

1	systemctl disable zammad --now
2	apt-mark hold zammad
3	apt update
4	apt upgrade
5
6	# Continue with step 2 or 3 depending on your current state
7

2-debian-10-to-11-repositories.sh · 483 B · Bash Raw

1	sed -i 's/security\.debian\.org buster\/updates/security\.debian\.org bullseye-security/g' /etc/apt/sources.list
2	sed -i 's/debian-security buster\/updates/ bullseye-security/g' /etc/apt/sources.list
3	sed -i 's/buster/bullseye/g' /etc/apt/sources.list
4	sed -i 's/debian 10/debian 11/g' /etc/apt/sources.list.d/zammad.list
5	apt clean; apt update
6	apt upgrade
7	apt dist-upgrade
8
9	pg_dropcluster --stop 13 main
10	pg_upgradecluster 11 main /var/lib/postgresql/13/
11
12	apt autoremove
13	shutdown -r now
14

2-ubuntu-18-to-20-repositories.sh · 281 B · Bash Raw

1	sed -i 's/bionic/focal/g' /etc/apt/sources.list
2	sed -i 's/ubuntu 18/ubuntu 20/g' /etc/apt/sources.list.d/zammad.list
3	apt clean; apt update
4	apt upgrade
5	apt dist-upgrade
6
7	pg_dropcluster --stop 12 main
8	pg_upgradecluster 10 main /var/lib/postgresql/12/
9
10	apt autoremove
11	shutdown -r now
12

3-debian-11-to-12-repositories.sh · 286 B · Bash Raw

1	sed -i 's/bullseye/bookworm/g' /etc/apt/sources.list
2	sed -i 's/debian 11/debian 12/g' /etc/apt/sources.list.d/zammad.list
3	apt clean; apt update
4	apt upgrade
5	apt dist-upgrade
6
7	pg_dropcluster --stop 15 main
8	pg_upgradecluster 13 main /var/lib/postgresql/15/
9
10	apt autoremove
11	shutdown -r now
12

3-ubuntu-20-to-22-repositories.sh · 280 B · Bash Raw

1	sed -i 's/focal/jammy/g' /etc/apt/sources.list
2	sed -i 's/ubuntu 20/ubuntu 22/g' /etc/apt/sources.list.d/zammad.list
3	apt clean; apt update
4	apt upgrade
5	apt dist-upgrade
6
7	pg_dropcluster --stop 14 main
8	pg_upgradecluster 12 main /var/lib/postgresql/14/
9
10	apt autoremove
11	shutdown -r now
12

4-finish-upgrade.sh · 77 B · Bash Raw

1	apt-mark unhold zammad
2	systemctl enable zammad
3	apt update
4	apt install zammad
5

pro-tip-huge-instance.sh · 269 B · Bash Raw

1	# The following action is NOT reversible but is significantly faster.
2	# Use at own descression - replace oldversion with your old version and newversion with your new version
3
4	pg_upgradecluster --method=upgrade --link <oldversion> main /var/lib/postgresql/<newversion>/