Thanks Colin, I did as you suggested and here are the installer/debug and syslog files for the system (a Dell Vostro V13 that drops to the livecd environment).
Mario: this particular system does show a segfault in the syslog and it does indeed have intel graphics (Intel GM45 as per syslog). ** Attachment added: "installer/debug with debug-ubiquity enabled" https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/706117/+attachment/1804852/+files/debug -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/706117 Title: Installation fails using preseed file and network install -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs