Problem to run a konverted vmdk SLES OS under PVE4.0

Hello everybody!

We are using PVE 4.0 in our live System.
In the past i converted successfully four SLES 11 SP 3 OSs with SAP Databases to our Ceph Storage, and the VMs from VMware run perfect on our PVE 4.0. (converted from vmdk to raw)
But now i cant find a solution, to run an older SLES with an older SAP System. Whatever i change, rather SCSI, NIC or something else, nothing works. Always the same error on booting SLES on PVE:
"Waiting for device /dev/sda2 to appear: ......not found -- exiting to /bin
$ _ (blinking coursor)"
The SLES OS has four HDDs, the first i used IDE, all other has SATA.
The other SLES on 11 SP3 i had the same configurations, and they work fine. IDE is a must for the first HDD, on SCSI or VIRTIO the first HDD will not boot.
But why does the SLES not boot correctly, why he loss the device sda2?

Thanks in advance!

Best regards,

Roman
 

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