How To Set Up Software RAID1 On A Running LVM System (lenny)

Discussion in 'HOWTO-Related Questions' started by mccyberix, Oct 6, 2010.

  1. mccyberix

    mccyberix Member

    Hello,
    I have troubles setting up Software RAID1 On A Running LVM System (Lenny)
    because my partitions are not according to the tutorial. My machine has two identical 500GB SATA drives and I configured one of them with the standard partition scheme (guided entire disk with LVM, not the encrypted option). The second one I leaved blank without any partition. Now comes my problem, according to the howto I should have the following partitions:

    /dev/sda1 /boot​
    /dev/sda2 (extended)​
    /dev/sda5 (LVM)​

    but I have only:
    /dev/sda1 /boot​
    /dev/sda2 (LVM)​

    ...there is no extended partition, so when I do the setup with /sda2 instead of /sda5 everything goes well untill I come to the point "pvcreate /dev/md1"
    where I get the error that I have to -ff this command. So please can you tell me why my debian installation woun't create the (extended) partition or how to get this done without this.

    Thanks in advance!
     
    mccyberix, Oct 6, 2010
    #1
  2. mccyberix

    mccyberix Member

    I forget to tell you that my mdadm.conf shows up more arrays as it should, maybe thats ok but I'm affraid to have something messed up. here is my mdadm.conf

    Code:
    # mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#

# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
DEVICE partitions

# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes

# automatically tag new arrays as belonging to the local system
HOMEHOST <system>

# instruct the monitoring daemon where to send mail alerts
MAILADDR root

# definitions of existing MD arrays
ARRAY /dev/md0 level=raid1 num-devices=2 UUID=7cbe93d1:c3548ceb:19d1a4dc:999fb1c2

# This file was auto-generated on Thu, 07 Oct 2010 09:25:07 +0200
# by mkconf $Id$
ARRAY /dev/md0 level=raid1 num-devices=2 UUID=7cbe93d1:c3548ceb:19d1a4dc:999fb1c2
ARRAY /dev/md0 level=raid1 num-devices=2 UUID=3712febe:dcc831cf:19d1a4dc:999fb1c2
ARRAY /dev/md1 level=raid1 num-devices=2 UUID=67369cf6:516ce7e4:19d1a4dc:999fb1c2
     
    mccyberix, Oct 7, 2010
    #2
  3. falko

    falko Super Moderator Howtoforge Staff

    You have to /dev/md0 devices in your mdadm.conf... :confused:

    What are the outputs of
    Code:
    cat /proc/mdstat
    and
    Code:
    fdisk -l
    ?
     
    falko, Oct 7, 2010
    #3

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