How to install Fedora&Ubuntu with encrypted VG's on one disk?

[johhny_at_poland77]

nobody has an idea? :(

---- Be Wed, 13 Apr 2011 15:43:50 -0700 johhny_at_poland77  írta ---- 

>I installed a Fedora 14 first, then an Ubuntu 10.04. I installed them using dm_crypt/aes256/lvm, so i used encrypted VolumeGroups. ok. 
>
>At the end of the ubuntu install it said it cannot install GRUB...ok 
>So i had to use SuperGRUBdisk to start Fedora&give out the command: "grub-install /dev/sda", OK! now i can boot to fedora normally, without using supergrubdisk..
>But: the problem is, that i can't boot to ubuntu!
>
>Q: Is there any working way to install Fedora 14 & Ubuntu 10.04 using (separated) encrypted VolumeGroups? (each volumegroup with other password)..so that 2 users (who knows the root passwords of their own distro) can use 1 pc? (so that they cannot see each others files..) 
>Thanks..