No luck so far with May 14 quantal iso on an Acer Intel netbook and an Acer AMD notebook.
1. Try booting .iso file direct with Grub 2 function. Has been working well with 10.04, 10.10, 11.04, 11.10, 12,04, not with 12.10 because squashfs can't find files. Fails on both pc's.
2. Try iso hybrid USB flash memory gets up to trying to copy files then gets some error writing syslog and says to clean the CD. How do I clean the USB memory bits? Fails on both pc's.
3. Use unetbootin to make USB install. Gets a lot farther but then on "Detecting hardware" gets "Bug: unable to handle null pointer dereference at 0000004C"
In none of the three cases will ubuntu-bug do anything.
Finally found Dash's "Startup Disk Creator" which Dash has filed under "C" not under Startup. Sure is a lot faster on 10.04 to find some application....
Let me try quantal's startup disk creator...