How to preseed additional packages in 18.04 server (debian installer)?

[mgsexton]

I have created a custom installation ISO based on the debian-installer version of the 18.04.3 server ISO. I put a preseed.cfg file in the initrd, which I have successfully used to automate responses to installer questions. Unfortunately, the dialog box for installing software packages only gives seven options:

• DNS server
• LAMP server
• Mail server
• PostgresSQL database
• Print server
• Samba file server
• OpenSSH server

I can automate the response to this dialog with this preseed entry:

d-i tasksel/first multiselect OpenSSH server

but I would like to install additional packages. Lines of this form:

d-i pkgsel/include autoconf

don't seem to have any effect.

Can someone tell me how to automate the installation of additional software packages?

Thank you,
Matt

[slickymaster]

Thread moved to Development CD/DVD Image Testing for a better fit

[mgsexton]

Problem fixed. I had a syntax error. The correct line is

d-i pkgsel/include string autoconf