This is an original planning guide. It is not a vendor manual, an official standard, or legal advice. Example addresses use documentation ranges. Review every command before you paste it.
What this hour is for
How to Upgrade Alpine Linux to the Next Release is a release upgrade of a Alpine Linux host you can reinstall. It is not a command you run on production while you are reading.
Take a backup or a snapshot first. Use apk. Alpine Linux, a small musl system with apk and OpenRC. It is not Ubuntu and not Debian.
Do not add a third-party repository in the same window. Alpine uses OpenRC, not systemd. rc-service and rc-update are the service tools. Do not paste a systemctl command and expect it to work. SELinux is not the Alpine default. Do not disable a confinement tool to make a package start. The console stays open if you later run this on a lab host.
The generator drafts the upgrade commands. It does not log in and it does not start the upgrade. 192.0.2.10/24, gateway 192.0.2.1, 198.51.100.0/24, 203.0.113.0/24, and 2001:db8::/32 are documentation. example.com is a documentation name. They belong in the note. They are not values you leave on a host because a draft included them.
The change you can finish
Apply nothing while you are writing the note. When the lab window opens, it is one change on the host named in the ticket. Read the draft, then the host, then decide.
Rollback is the file, the package version, or the snapshot you saved first. You do not invent a rollback after the only copy is gone.
- Confirm you can reinstall this host.
- Write the current version.
- Confirm a backup or a snapshot exists.
- Read the draft. Do not run it during the reading.
- Keep the console path written down.
- Stop. Production waits for its own window.
Mistakes that outlive the command
Release upgrade of Alpine Linux goes wrong in a small set of ways. The list is here so the ticket can forbid them before the window.
- Pasting a draft you did not read.
- The wrong hostname.
- A secret in the ticket or in git.
- Two changes in one window.
- No copy saved before the change.
- A documentation address left on a host that is leaving the lab.
- Disabling a firewall, AppArmor, or SELinux to make a check pass.
- Calling the generator output a finished production change.
- An upgrade with no backup.
- A third-party repository added in the same window.
- Running the upgrade on production during the reading.
Decisions to write down
One decision for Release upgrade of Alpine Linux: The host can be reinstalled, or this stays a plan. A backup exists. The version you are leaving is written. No extra repository is part of the upgrade. And the console path is known.
Checks before you call it done
Confirm this before you call the change done: The current version is in the ticket. The backup is named. The draft was not run on production. No secret is in the note. And the next step is a scheduled window or a stop. If one of those fails, stop.
# Do not run this during the reading.
# Alpine Linux release upgrade.
# Backup first. apk.
# 192.0.2.10/24, gateway 192.0.2.1, 198.51.100.0/24, 203.0.113.0/24, and 2001:db8::/32 are documentation. example.com is a documentation name. They belong in the note. They are not values you leave on a host because a draft included them.Before you leave the host
How to Upgrade Alpine Linux to the Next Release ends when the hostname in the prompt matches the hostname in the ticket. If it does not, you are on the wrong host. Stop. A command that succeeded on the wrong host is not progress.
The draft stays a draft until a person has read the names in it. A generator does not log into the host and does not know which disk is empty. You delete a line that names a host, a path, or an account you did not write down.
192.0.2.10/24, gateway 192.0.2.1, 198.51.100.0/24, 203.0.113.0/24, and 2001:db8::/32 are documentation. example.com is a documentation name. They belong in the note. They are not values you leave on a host because a draft included them.
prompt-for-this is a reminder that a secret is missing. It is not a password, a key, or a token you save in the ticket or in git. The real secret stays in the password store.
One change is the window. If two things move and the result is wrong, you will not know which one did it. The next change waits for its own page.
If the same step fails twice, stop for the day. The failure is the result. Adding a forum command beside a half-applied change produces a host nobody can rebuild. Restore the copy you took first.
A second person reads the hostname and the change aloud. If they cannot find them in the ticket, the note is not done. Silence is not agreement. Then leave the host alone.
This page is a planning guide. It is not a vendor manual, not an official standard, and not permission to touch a host you do not administer. You do not disable a firewall, AppArmor, or SELinux to make a check pass.
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