disk partition & RAID

From: Anil kumar (anils_r@yahoo.com)
Date: Fri Oct 06 2000 - 12:29:35 EST


Hi,
 I want to setup the RAID.
 For this I am partitioning the disks .The following
 is the procedure:
  fdisk /dev/hde
  fdisk -n /dev/hde /*to add new partition*/
  I specify the first & last cylinder
  fdisk -w /dev/hde /*save & quit*/

  when I do so , I get following :
  The partition table has been altered!
  
  calling ioctl() to re-read partition table.
  hde:unknown partition table
  
  What does this mean?
  where am I wrong?
  
  I am creating a /etc/raidtab file for raid
configuration .
  Then # mkraid /dev/md0
  I get error : device too small(0KB).

  Surprisingly, while bootup itself the Partition
  check shows :
  hde : unknown partition table
  
  what does this mean & how it affects the RAID setup?
   hde is the externel disk I am using for RAID setup.

  I am not able to post any messages to :linux-raid
  group.

with regards,
   Anil

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