Hello Herbert, This boot failure of LVM above RAID looks to be a GRUB issue; I am unsure if this has been fixed or not so I am copying Colin on the message for he give his feedback on this when possible. Cheers, -- Otavio Salvador O.S. Systems E-mail: otavio@ossystems.com.br http://www.ossystems.com.br Mobile: +55 53 9981-7854 http://projetos.ossystems.com.br