unable to complete Software RAID installation

[Bill Smith]

I'm using the Hardy Alpha-6 Alternate CD to try to install a simple Software RAID mirror, same as I've done several times before in Ubuntu 7.04, 7.10 (as well as OpenSuSE 10.3). I create the 'physical disk for raid' partitions but then when I select 'Setup Software RAID' it gives the following error:

  Failed to remove conflicting files
  The installer needs to remove operating system files from the install target,
  but was unable to do so.

FYI - These are two known-good freshly-wiped hard drives.

If this really is a bug in the scripts it should be easy to recreate. I tried to create a 30 GB 'md0' with ext3, bootable, mounted as "/", and also a 10 GB 'md1' swap (I know, it's overkill).

P.S. I know that 7.04 and 7.10 both have problems with their GRUB scripts which prevents one from booting from only 1 disk in a mirror, and I'm hoping to do a fresh install of my main machine after Hardy is released. But this depends on Hardy having working GRUB scripts, which is what I was trying to test. I didn't expect to get stuck at the install...

[Florent (florent-giard)]

Exactly same bug with Hardy Alpha-6 AMD64 Alternate CD, but my raid configuration is more simple :

sda: sda1: 1GB /boot, sda2: 1BG swap , sda3: 80GB Raid
sdb: sdb1: 2GB not use, sdb2: 80GB Raid

'Setup Software RAID':

  Failed to remove conflicting files
  The installer needs to remove operating system files from the install target,
  but was unable to do so.

After this, i have done the install with ubuntu-7.10-alternate-amd64.iso with the same configuration and all is ok.

My sata controller is the nvidia nforce4 and all raid option in bios are disabled.

[Ralph Janke (txwikinger)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This bug did not have a package associated with it, which is important for ensuring that it gets looked at by the proper developers. You can learn more about finding the right package at https://wiki.ubuntu.com/Bugs/FindRightPackage . I have classified this bug as a bug in ubiquity.

[Evan (ev)]

Could both of you please attach /var/log/syslog from such an install attempt after you see the "Failed to remove conflicting files" message? Please be sure to back up any important data before you do this.

[Bill Smith (bsmith1051)]

This bug appears to be fixed in the new Hardy beta! Unfortunately, I'm still having the same long-term problem with the drives not booting after a drive failure (and which is already reported by many people in bug 120375),
http://bugs.launchpad.net/ubuntu/+bug/120375

[Steve Langasek (vorlon)]

Thank you for taking the time to report this issue and help to improve Ubuntu.

Based on the last comment in this bug report, I am marking this bug as "fix released" since the issue reported seems to be resolved with 8.04 beta and beyond.