In my config, I made, under linux install, one logical partition for each /boot then one LVM containing the others partitions ( /, /home). If I add an OS, I execute "update-grub" under every Linux to automatically update the grub config file.
Different solutions :
1) Re-install BT5R2 without the NOGRUB option. Nota : il will install GRUB2 in the MBR. If you doesn(t want, check for advanced options
2) With EasyBCD
2.1) Try to create an entry with Grub Legacy and choose the right device for BT5R2
it it doesn't work try this
I get the same problem with 2.2 r173 and this configuration
Windows7 2 primary partitions, loader in MBR
Debian 6.0.3 in extended partition with GRUB2 in /boot (part5), / and /home in LVM
Ubuntu 11.10 in same extended partition with GRUB2 in /boot (part6), / and /home in LVM
BT5R2 in same...
I tried 2.2 r173 which resulted in the same behaviour for me too.
If I understand what you wrote : you installed GRUB in MBR ? Of course it is working but it should be harder when you'll have services packs and other kernel update on windows. The best practice is to separate : Windows loader in...
I've got exactly the same problem with W7 boot on MBR + Debian 6 Grub2 in /boot + Ubuntu 11.10 Grub2 in /boot + BT5R2 Grub2 in /boot.
A solution is to select Grub Legacy on the drop down and then select the right /dev in the other drop down. You'll get a "little" error msg (too...