I have a Toshiba Satellite laptop L50-B-18E.
So, one day the toshiba center asked me to update the BIOS, and I did. But now the menu that asks me what system do I want to start doesn't appear anymore. So I don't know how to boot from my ubuntu partition. The BIOS startup menu doesn't say anything about partitions and the toshiba service tells me that they only deal with windows problems.
Thanks for your help and excuse my poor English.