I have tried several times to install Natty on its own partition on my laptop (WinXP, Intel x86) using UNetBootin, but it always fail.
There is a dialog box:
Failed to unmount partitions The installer needs to commit changes to partition tables, but cannot do so because partitions on the following could not be unmounted. /cdrom Please close any applications using these mount points. Would you like the installer to try to unmount these partitions again?
If I click on "continue" Ubiquity will hang up, that is, the slideshow will play forever. I do not have a built-in optical drive and I'm not currently using any peripheral.
I have tried
sudo umount /cdrom it says that
cdrom is busy. Then the command
fuser /cdrom returns "Stale NFS file handle".
How can I work around this to install Ubuntu?