On Ubuntu 11.10 and 12.04 alpha
On a EFI system which already contains a FAT32 EFI partition, when the user chooses "Install Ubuntu alongside them" (see attached screenshot) , Ubiquity will create another EFI partition, but will not use it. Instead it will use the first EFI partition detected on the disk.
For example, if you install Ubuntu 11.04, then 11.10, then 12.04 alpha on a EFI system, you will find that 3 EFI partitions are created, but only the 1st EFI partition will be used (grubx64.efi will be updated each time). The 2 other EFI partitions will remain useless (empty).
Remarks:
- if the user chooses "Something else" and creates a root (/) partition, Ubiquity will correctly detect and use the existing EFI partition.
- if the EFI partition is FAT16, it will be correctly detected by Partman, and Ubiquity will correctly use it (and won't create additional EFI partition)
(translated from French: http://forum.ubuntu-fr.org/viewtopic.php?pid=7332931#p7332931 )
Status changed to 'Confirmed' because the bug affects multiple users.