VM Disk is not bootable

[Mulixer]

Hello everybody,

after restarting a VM, the following is displayed.

Booting from Hard Disk...
Boot failed: not a bootable disk

What can I do now. Why does the machine not boot anymore?
The server previously ran without any problems

Proxmox is a 4.4-1 and the VM is a debian 9
The Config of this VM is

boot: cd
bootdisk: sata0
cores: 8
description: Webserver
ide2: none,media=cdrom
memory: 16384
Name: Webserver
net0: virtio=FAXXX
net1: virtio=FAXXX
numa: 0
ostype: 126
sata0: local-lvm-storage:vm-103-disk-1,size=200G
scsihw: virtio-scsi-pci
smbios1: uuid=53454XXXX
sockets: 1

Thanks
Michael

 

[Mulixer]

Hello there...

After starting a Rescure CD, the LVM is not displayed there. How can I access the LVM in the Rescure environment in order to repair the bootloader?

Thanks
Michael