btw, make sure you've disabled the RAID BIOS on your controller
(if there's any) while implementing a software raid.




On 5/8/07, Ariz Jacinto <[EMAIL PROTECTED]> wrote:

Hi,

the trick is, you can't boot on the MBR installed on a _software_
raid1 partition _but_ you _can_ if you're going to install the MBR
on all the member disks of that software raid1 partition.


assuming that you're trying to boot from "/boot" residing in a raid1
partition  "/md3"  which includes  "/dev/sda3"  and  "/dev/sdb3",
go to a grub shell and then try a similar set of commands:

grub> device (hd0)  /dev/sda3
grub> root (hd0,0)
grub> setup (hd0)
grub> device (hd0)  /dev/sdb3        ; to make the MBR look correct
whenever the 1st disk fails
grub> root (hd0,0)
grub> setup (hd0)



then  grub.conf  should look similar to this:
  ....
  root (hd0,0)
  kernel /vmlinuz.... root=/dev/md1
  ....


* you might want to use  hd1  for  /dev/sdb3  but you'll be needing a
  separate entry for it on  grub.conf  in case of a failure on the 1st
disk.



and then boot.


hopefully, you'll find this template useful. just goog for "boot software
raid"
for more info.






On 5/7/07, Hazel Lopez <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> I am trying to set up an 64-bit AMD server, with two (2) 120GB and two
> (2) 320GB SATA hard drives.  I tried to install
> ubuntu-7.04-server-amd64.iso on the machine and made two (2) raid1
> configurations on the two sets of hard drives.  I configured it via manually
> editing the partition tables.  There wasn't any problem during the
> installation, I was able to create three partitions, md0 swap, md1 / and md2
> /var.  However, whenever the installation is done and the machine reboots, I
> get the message, "GRUB Loading stage1.5 Error 17."
>
> Can someone guide me on how to effectively configure raid1 on feisty
> fawn server installation?
>
> Thanks.
>

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