Seems this bug still is present with the latest grub update, as had to patch /usr/bin/os-prober again to allow dual-boot from MD array.
$ apt-cache policy grub2 grub2: Installed: (none) Candidate: 1.99-21ubuntu3.14 Version table: 1.99-21ubuntu3.14 0 500 http://gb.archive.ubuntu.com/ubuntu/ precise-updates/universe i386 Packages 1.99-21ubuntu3 0 500 http://gb.archive.ubuntu.com/ubuntu/ precise/universe i386 Packages
Seems this bug still is present with the latest grub update, as had to patch /usr/bin/os-prober again to allow dual-boot from MD array.
$ apt-cache policy grub2 99-21ubuntu3. 14 0 gb.archive. ubuntu. com/ubuntu/ precise- updates/ universe i386 Packages gb.archive. ubuntu. com/ubuntu/ precise/universe i386 Packages
grub2:
Installed: (none)
Candidate: 1.99-21ubuntu3.14
Version table:
1.
500 http://
1.99-21ubuntu3 0
500 http://