Re: [gentoo-user] Recovering RAID1 after disk failure

[Andrea Conti]

Hello,

> However, the good drive started on sector 63 and the new drive want's to start
> on sector 2048.  Fdisk won't let me create the partition table on the new
> drive as it is on the old drive.

Recent versions of fdisk require partitions to begin on a 1MB boundary;
this among other things guarantees that there are no alignment issues
with 4k-sector drives.

If you really need to use fdisk for this task you can start it in
compatibility mode (i.e. "fdisk -c=dos").

The recommended way of preparing the new drive, though, is to simply use
sfdisk to copy the partition table from the existing one:

sfdisk -d <old drive> | sfdisk -L <new drive>

andrea