Adding a note on dependencies

[mattdark]

During installation of percona-server-server, following the instructions here. I got the following error message:

/usr/share/mysql/mysql-helpers: line 73: 13537 Killed                  mysqld --defaults-group-suffix="$2" --user=mysql --init-file="$
1" --socket="$tmpdir/mysqld.sock" --pid-file="$tmpdir/mysqld.pid" > /dev/null 2>&1
dpkg: error processing package percona-server-server (--configure):
 installed percona-server-server package post-installation script subprocess returned error exit status 137
Processing triggers for systemd (245.4-4ubuntu3.17) ...
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for libc-bin (2.31-0ubuntu9.9) ...
Errors were encountered while processing:
 percona-server-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

Getting the same error on both Ubuntu and Debian, configured on a Vagrant virtual environment. The solution was to install GnuPG and curl before installing Percona Distribution for MySQL, as mentioned here.

[nastena1606]

Thank you for your contribution! LGTM

[LenzGr]

Note: This PR fixes DISTMYSQL-206