Thanks, sorry that I does not read the manpage - carefully. What does : State: dirty, no erros mean ? [root@muckla root]# mdadm -E /dev/hda1 /dev/hda1: Magic : a92b4efc Version : 00.90.00 UUID : 1628b05f:8e582771:6bc25a99:b080ab1f Creation Time : Sun May 2 21:53:46 2004 Raid Level : raid1 Device Size : 4882624 (4.66 GiB 4.100 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 0 Update Time : Mon May 3 05:49:54 2004 State : dirty, no-errors Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Checksum : eb64d179 - correct Events : 0.13 Number Major Minor RaidDevice State this 0 3 1 0 active sync /dev/hda1 0 0 3 1 0 active sync /dev/hda1 1 1 22 1 1 active sync /dev/hdc1 [root@muckla root]# Thanks Reinhard On Wed, 2004-05-05 at 01:39, Christopher K. Johnson wrote: > Reinhard Sy wrote: > > >Hi > > > >I have now set my RAID1 but if I use : > > > >[root@muckla root]# mdadm -E /dev/md0 > >mdadm: No super block found on /dev/md0 (Expected magic a92b4efc, got > >00000000) > > > From man mdadm > " -E, --examine > Print content of md superblock on device(s). > ... > --examine > The device should be a component of an md array. " > > So you should be trying mdadm -E /dev/hda1 > > -- > ----------------------------------------------------------- > "Spend less! Do more! Go Open Source..." -- Dirigo.net > Chris Johnson, RHCE #807000448202021