Re: [gentoo-user] Moving an installed system to RAID10

[Jim Cunning]

On Saturday 02 May 2009 13:43:27 Volker Armin Hemmann wrote:
> On Samstag 02 Mai 2009, Jim Cunning wrote:
> > I have a well-running AMD64 system running on a 250G disk that is
> > beginning to show some SMART errors.  I have purchased and partitioned
> > two 1T disks into RAID10 arrays and would like to move everything to the
> > new arrays, make them bootable and abandon booting from the 250G disk.
> >
> > I know I'll need to change /boot/grub/grub.conf, /etc/fstab and any other
> > files that refer to my current drive partitions, /dev/sda{1,2,3,4}. I am
> > concerned whether my current kernel will recognize the /dev/md{1,2,3,4}
> > arrays on booting, and before switching from the initrd root disk.  How
> > can I check the parameters and contents of the initrd I'm currently using
> > and/or generate a new one to permit booting from the RAID disks?
>
> how do you do 10 with only two disks? You need four!
> the kernel is able to autoassemble - so you don't need an initrd - me I
> hate initrds.

RAID10 = RAID1+0. It works fine with 2 disks.  I was able to create it first 
with one drive missing and then add the second, which sync'ed without 
problems.

I'm glad I don't need any special initrd.
-- 
Jim