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I have just built a new server to host a minecraft server. I have two hdds that are in hardware raid 1, and I have installed Ubuntu Server 11.04 on those disks. My problem is that anytime I reboot I get this error message

The disk drive for /dev/mapper/nvidia_dhecicai5 is not ready yet or not present
Continue to wait; or Press S to skip mounting or M for manual recovery

This is my /etc/fstab

proc                             /proc           proc    nodev,noexec,nosuid    0       0
/dev/mapper/nvidia_dhecicai1     /               ext4    errors=remount-ro      0       1
/dev/mapper/nvidia_dhecicai5    none            swap    sw                     0       0
/dev/mapper/cryptswap1           none            swap    sw                     0       0
ramdisk                          /mnt/ramdisk    tmpfs   mode=1777,size=2g      0       0

If comment out the first swap line i get the same error message with cryptswap1, and if I comment out both the system boots fine. I have 8g of ram in the system, so it should work fine without swap, but it's kind of an ugly solution. I probably could get rid of the cryptswap1 swap by reinstalling without encrypted home folders, but I'm pretty sure it's the same problem.

This is my output from blkid

  /dev/sda: TYPE="nvidia_raid_member"
  /dev/sdb: TYPE="nvidia_raid_member"
  /dev/mapper/nvidia_dhecicai1: UUID="28a0d47a-8a42-4a7d-83f4-09d89b206901" TYPE="ext4"
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migrated from serverfault.com Aug 2 '11 at 19:33

This question came from our site for professional system and network administrators.

1 Answer

You need lvm and dmraid in your initrd. Obviously you are using an nvidia "RAID" controller chip (is this a server?). This chip needs software in the OS that supports this raid - only then the raid is available in the OS. (as opposed to "real" raid controllers that present the raid as disk to the OS).

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I'm using the raid controller on the Asus M4N68T. The system is supposed to function as a dedicated minecraft server. Is this something that I can fix (more or less easily) without reinstalling, or should I do a new install. And if I do a new install, what should I do differently? I partitioned the whole raid1 without LVM. –  liei Jul 31 '11 at 20:46
    
You don't need to reinstall anything. You just need to add an additional kernel-module to your initrd. Can you post your output of sudo lsmod? –  Nils Aug 2 '11 at 19:23
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