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

[Frederic William Beck]

I reported the same problem with the Ubiquity installer of Ubuntu 11.04
(64 bit) in hopes that it would have been sorted out by 11.10, but it
isn't.

Last version of Ubiquity that seems to install fine on NVIDIA SATA
stripe to my knowledge was with Ubuntu 10.10. My workaround on computers
with NVIDIA SATA stripe set is to install Maverick and then let Update
Manager upgrade to Oneiric.

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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:
  New

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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