I have tried a persistent live USB key made from the lucid-desktop-amd64.iso of 20100416 (note: not i386), md5sum 3457aff4863972bbb38806e68cd30a77, which I think will be the beta3 release.
Results for "Try kubuntu without installing":
* with no options changed
- screen goes black
- KDE start-up sound plays
- Ctrl-Alt-Fn produces no visible results.
- blind-typing Ctrl-Alt-Del Down-arrow CR CR etc shuts down the computer
* with "splash" removed from the boot options
- as above
* with "splash" present in the boot options and "nomodeset" selected in the F6 menu
- big ugly boot animation. It looks like the resolution is 640x480 8-bit.
- screen goes black, then fades in dim bands of odd colors.
- KDE start-up sound does _not_ play.
- Ctrl-Alt-Fn does nothing.
- Ctrl-Alt-Del does nothing.
* with "splash" removed and "nomodeset" selected
- no boot animation.
- screen shows many text messages, starting with "stdin: error 0" and "can't open /dev/sr0", each repeated a few times.
- screen goes black, then fades in dim bands of odd colors.
- KDE start-up sound does _not_ play.
- Ctrl-Alt-Fn and Ctrl-Alt-Del do nothing.
I have tried a persistent live USB key made from the lucid-desktop- amd64.iso of 20100416 (note: not i386), md5sum 3457aff4863972b bb38806e68cd30a 77, which I think will be the beta3 release.
Results for "Try kubuntu without installing":
* with no options changed
- screen goes black
- KDE start-up sound plays
- Ctrl-Alt-Fn produces no visible results.
- blind-typing Ctrl-Alt-Del Down-arrow CR CR etc shuts down the computer
* with "splash" removed from the boot options
- as above
* with "splash" present in the boot options and "nomodeset" selected in the F6 menu
- big ugly boot animation. It looks like the resolution is 640x480 8-bit.
- screen goes black, then fades in dim bands of odd colors.
- KDE start-up sound does _not_ play.
- Ctrl-Alt-Fn does nothing.
- Ctrl-Alt-Del does nothing.
* with "splash" removed and "nomodeset" selected
- no boot animation.
- screen shows many text messages, starting with "stdin: error 0" and "can't open /dev/sr0", each repeated a few times.
- screen goes black, then fades in dim bands of odd colors.
- KDE start-up sound does _not_ play.
- Ctrl-Alt-Fn and Ctrl-Alt-Del do nothing.