8 lines
757 B
Markdown
8 lines
757 B
Markdown
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1. Update existing packages. Run `sudo apt-get update && sudo apt-get upgrade` to fetch and install the latest versions of existing packages from the Debian 11 release channel.
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2. Reboot the system. Follow the appropriate shutdown procedure for the host.
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3. Edit the `sources.list` file to point to the new release channels. Run `sudo nano /etc/apt/sources.list`, then replace the release channel names for bullseye with those for bookworm.
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4. Update and upgrade packages minimally. Run `sudo apt update && sudo apt upgrade --without-new-pkgs`.
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5. Fully upgrade the system. Run `sudo apt full-upgrade`.
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6. Validate the SSHD config file. Run `sudo sshd -t`.
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[CyberCiti.biz](https://www.cyberciti.biz/faq/update-upgrade-debian-11-to-debian-12-bookworm/)
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