[Bug 877986] Re: Ubuntu 11.10 fails to install on a nvidia onboard RAID0

[rumpl]

Well, I finaly installed on only 1 HD and not on the RAID. Have read a lot of posts throughout the internet, that this RAID stuff from nvidia is not used properly by ubuntu and other linux distros (even if you are able to install the system on it ;-) )
BTW: Installation worked with Ubuntu 10.10, when I installed it the first time. Think all that inconveniance has to do with entries written on the HDDs by the on-board raid controller, as the first installation with 10.10 worked fine, but at this time, the system was brand new and RAID has not been used before on that system.

Max la Menace, your boot crash could have something to do with Bug
#791089, which also affects me. You could try to blacklist the nv_tco.
Maybe this solves at least your 2nd problem.

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https://bugs.launchpad.net/bugs/877986

Title:
  Ubuntu 11.10 fails to install on a nvidia onboard RAID0

Status in “ubiquity” package in Ubuntu:
  Confirmed

Bug description:
  Tried to install ubuntu 11.10 alongside with Win7 on a asus p5n32-e
  sli with nvidia raid on-board.

  Have tried different types of raid configs and also installing with
  the default "install with window7"

  First times the installer went through, but only used 1 part of the mirrored RAID1 (although gparted in the installer detected the RAID1 as 1 disk ( /dev/mapper/nvidiablablabla) 
  Reboot: Grub did not display the windows installation anymore, since Win7 was installed on both HDs mirrorde as it was a mirror. 

  then, when making boot-repair from yanubuntu, this seemed to install
  grub in the /dev/mapper/nvidiablabla MBR, but then the startup failed
  from grub with: invalid environment block

  So I reconfigured the RAID set to a raid0, cleared the disks with the raid manager, installed windows again. 
  Started the installation with the ubuntu 11.10 cd again and.... grub failed to install on /dev/mapper/nvidiaxxxxx 

  This happens with manual installation, with the guided install.

  Also tried to install grub on a different partition, not on the
  /dev/mapper/nvidiaxxxxx disk directly, but no success.

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