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h1. Debian 9 to 10

h2. Update sources list

check which sources exist that point to stretch

<pre>

cd /etc/apt

grep -nr stretch .

</pre>

Edit the main list, and any others that come up

<pre>

vim /etc/apt/sources.list

</pre>

<pre>

:%s/stretch/buster/g

</pre>

h2. Upgrade the system

h3. Check for Necessary Disk Space

<pre>apt-get -o APT::Get::Trivial-Only=true dist-upgrade</pre>

h3. Update the sources

<pre>

apt-get update

</pre>

h3. Minimal Upgrade

<pre> apt-get upgrade</pre>

* if it asks whether to change /etc/apt/trusted.gpg.d/debian-archive-jessie-security-automatic.gpg, say yes

* other things it asks to change, say no, keep the existing file

h3. Full Upgrade

<pre>

apt-get dist-upgrade

</pre>

h3. Upgrade MySQL databases (if MySQL/MariaDB installed)

<pre>

mysql_upgrade

</pre>

h2. Common problems

h3. borg

* Changes needed to the borg backupninja jobs #48568-1

** need to add @encryption = none@ just above the passphrase

** change the path to the directory to be the complete full path, not use the tilde for home, and must start with a slash

h3. mysql backup checking

Newest version of mariadb doesn't have separate databases for information schema or performance schema, so remove the old backups of those.

<pre>

cd /var/backups/mysql/sqldump

rm information_schema.sql.gz

rm performance_schema.sql.gz

</pre>