Ubuntu Installation :: 11.04 Does Not Work Well With Sandisk USB Stick With U3 Launchpad

If you have problem using Ubuntu 11.04 from USB, remove the U3 launchpad if you do not need it at all. It may solve your problem.Link: [URL] I am not a Ubuntu/Linux user but I do keep a copy of Ubuntu LiveUSB in my Sandisk cruzer micro 8GB USB stick in case of system failure. It comes with the U3 lanuchpad that I never use.The USB stick was working happily with Ubuntu 10.04 and 10.10. However when I formatted the stick and put Ubuntu 11.04 (checksum is ok) into it, it failed to boot from the stick every single time. I was getting this error even though I have disabled all(one) my physical DVD-RWs in BIOS:

Code:

mounting /dev/sr0 on /cdrom. failed Device or resource busy.

I do not remember the wording...)The error message appeared when I saw the Ubuntu logo and the five animating dots. So I decided to remove U3 launchpad and voil�! I could boot for the first time (and 6th time in a row without problem now).sidenote: My physical DVD-RW drive is still blocking the bootup half of the times even if there is no discs in it. Disabling the drive in BIOS solve the problem. The error occurs before I see the five animating dots. The screen stops at

Code:

[figure varying each time] scsi 0:0:0:0: CD-ROM PIONEER DVD-RW DVR-111 1.29 PQ:0 ANSI:5