Mitchell Laks wrote:
Hi mdadm raid gurus,
I wanted to make a raid1 array, but at the moment I have only 1 drive available. The other disk is
in the mail. I wanted to make a raid1 that i will use as a backup.
But I need to do the backup now, before the second drive comes.
So I did this.
formated /dev/sda creating /dev/sda1 with type fd.
then I tried to run
mdadm -C /dev/md0 --level=1 --raid-devices=1 /dev/sda1
but I got an error message
mdadm: 1 is an unusual numner of drives for an array so it is probably a mistake. If you really
mean it you will need to specify --force before setting the number of drives
so then i tried
mdadm -C /dev/md0 --level=1 --force --raid-devices=1 /dev/sda1
mdadm: /dev/sda1 is too small:0K
mdadm: create aborted
now what does that mean?
fdisk -l /dev/sda shows
device boot start end blocks Id System
/dev/sda1 1 60801 488384001 fd linux raid autodetect
so what do I do?
I need to back up my data.
If I simply format /dev/sda1 as an ext3 file system then I can't "add" the second drive later on.
How can I set it up as a `degraded` raid1 array so I can later on add in the second drive and sync?
Specify two drives and one as missing.
--
Bill Davidsen <davidsen@xxxxxxx>
"Woe unto the statesman who makes war without a reason that will still
be valid when the war is over..." Otto von Bismark
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