Preseeding ubiquity, how?

Evan Dandrea evand at
Mon Oct 15 17:17:30 UTC 2007

On Mon, Oct 15, 2007 at 12:02:13PM +0200, Fabrizio Balliano wrote:
> Hi to all,
> as a developer of a few Ubuntu derivatives I followed the last threads
> about the barebone X session for ubiquity, the "only-ubiquity" boot
> option it's really cool for me so I can avoid remastering alternate cd
> that's a bit difficult.
> Now the question, googleing around it seems possible to preeseed
> ubiquity but I can't find a guide or some kind of documentation, I'm
> looking at the source code but... if someone knows where to find a bit
> of doc it would be wonderful.

"only-ubiquity" will not work with preseeding.  Please use
"automatic-ubiquity" for preseeding a barebone ubiquity session.

There is not any documentation for this yet, but I will begin typing
that up soon.  Rather than make you wait, here's a rough overview:

Just like with preseeding the alternate installer, you specify the
preseed file on the kernel cmdline using file= or url=

Additional preseed options:
ubiquity/summary - preseed empty to avoid the summary page.
ubiquity/reboot - automatically reboot when the installer completes.
ubiquity/failure_command - specify a command to be run on install
ubiquity/success_command - specifiy a command to be run on install

A sample preseed file can be found here:


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