Comment 6 for bug 295949

I apologise that your bug report was dealt with by somebody apparently not very familiar with the installer. We do not in fact need any of the information that Teej asked for in order to fix this bug: the partman log would contain no useful information whatsoever, and the only thing that syslog would tell me would be the contents of /proc/cmdline. Fortunately, I can experiment with this for myself and make a good guess at the problem.

This is actually supposed to be supported already, provided that you put the boot options that are supposed to be preserved *after* the "--" that's at the end of the command line on the live CD. This allows us to distinguish boot options that are supposed to be passed only to the installer from ones that are expected to be preserved, and generally this scheme works well. Unfortunately, gfxboot-theme-ubuntu, which implements our CD boot menu, doesn't add its preset options (acpi=off etc.) to the end of the boot command line, but instead adds them to near the start. Fixing this would fix this bug.