Hi Allen,

> I would check your initrd for the proper modules (sata_*.ko
> maybe?). It
> sounds like they aren't getting loaded via the init script in your
> initrd.
I've compared them with the modules loaded during install, and it seems
all the proper modules are loaded.

> Do you have an "alias scsi_hostadapter <something>" line in your
> /etc/modprobe.conf file?
Indeed :

]# cat /etc/modprobe.conf
alias eth0 tg3
alias eth1 tg3
alias scsi_hostadapter ahci
alias scsi_hostadapter1 usb-storage

Adding verbose and debug options to dmraid in the init script in initrd,
gives some more detail about the possible cause :

dmraid -vvv -ddd -ay -i -p "ddf1_System"
NOTICE: /dev/sda: ddf1   discovering
NOTICE: /dev/sda: ddf1 metadata discovered
NOTICE: /dev/sdb: ddf1   discovering
NOTICE: /dev/sdb: ddf1 metadata discovered
DEBUG: _find_set: searching ddf1_System
DEBUG: _find_set: not found ddf1_System
DEBUG: _find_set: searching .ddf1_disks
DEBUG: _find_set: not found .ddf1_disks
DEBUG: _find_set: searching ddf1_System
DEBUG: _find_set: searching ddf1_System
DEBUG: _find_set: not found ddf1_System
DEBUG: _find_set: not found ddf1_System
NOTICE: added /dev/sda to RAID set ".ddf1_disks"
NOTICE: dropping unwanted RAID set ".ddf1_disks"
DEBUG: freeing devices of RAID set "ddf1_System"
DEBUG: freeing device "ddf1_System", path "/dev/sda"
DEBUG: freeing devices of RAID set ".ddf1_disks"
DEBUG: freeing device ".ddf1_disks", path "/dev/sda"

kpartx -a -p p "/dev/mapper/ddf1_System"
failes because the /dev/mapper device is not there (seems fair).

I've named the RAID 1 set "System" in the internal RAID controller
utility. During RH installation it's called ddf1_System, but booting the
server after installation dmraid does not finds "System" but "disks" and
calls it .ddf1-disks , correct?

Thanks,
Andre

> The /dev/mapper/* devices are getting created because "vgscan" and
> "vgchange -ay" isn't finding any volume groups (the SATA disk can't be
> found).
>
> -Allen
>
> -----Original Message-----
> From: rhelv5-list-bounces@(protected)
> [mailto:rhelv5-list-bounces@(protected)
> Sent: Friday, January 18, 2008 06:33
> To: rhelv5-list@(protected)
> Subject: [rhelv5-list] rhels5.1 dev-mapper and raid1
>
> Hi,
>
> On a HP Proliant dl-140-g3 with Adaptec SATA controller I'm trying to
> install RHELS5.1 . Both SATA disks are configured in a RAID 1 set (via
> the SATA controller internal setup utility), properly recognized as 1
> device during RH installation and mapped in /dev/mapper . Creating a
> /boot partition and a LVM2 VG group on the dev-mapper device.
> All going
> well, but when rebooting the system after installation, it does not
> setup de dev-mapper device. RH sees both disks as separate disks
> (/dev/sda and /dev/sdb), not as during installation as a device-mapper
> device. Any ideas how to correct this?
>
> Tia,
> Andre
>
> ---
> Wageningen University
> The Netherlands
>
>
>
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>
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>


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