VM cannot see partitions of existing raw image

Hi,

I have a couple of VM's running successfully on my new Proxmox servers, and decided to try migrating one of my old ones from my Ganeti servers. However the partitions are not visible in the VM when I run it.

I've been trying to work out the solution for a couple of weeks now, but cannot find it. I hope it's something simple I'm missing.

Thanks in advance for any help you can provide. =)

Here's the story so far....

INITIAL SETUP STEPS

  1. Create a VM on Proxmox with a raw disk the same size as the Ganeti one, set to use virtio.
  2. Backup the VM in Ganeti - I believe this stops the VM, takes a snapshot, then copies the snapshot to a file.
  3. SCP the backup file to Proxmox
  4. Replace the blank image with the one I copied from Ganeti.
  5. Start the VM.
  6. I get a message in the console: Boot failed: not a bootable disk

LIVE DISK

I booted the VM from an Ubuntu 18.04 live DVD, and opened Disks. I can see the disk drive (/dev/vda) with correct size, but it's just a blank drive, no partitions (see attached screenshot).

DISK TYPE

I tried changing the disk type from virtio to IDE and SCSI in the config file, but that didn't help.

I also tried changing the SCSI COntroller to different settings, but that didn't help either.

FDISK
If I fdisk -l the image I get this:

Code: 
Disk 102/vm-102-disk-1.raw: 13 GiB, 13958643712 bytes, 27262976 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x000eb777

Device                 Boot    Start      End  Sectors  Size Id Type
102/vm-102-disk-1.raw1 *        2048 24117247 24115200 11.5G 83 Linux
102/vm-102-disk-1.raw2      24119294 25163775  1044482  510M  5 Extended
102/vm-102-disk-1.raw5      24119296 25163775  1044480  510M 82 Linux swap / Solaris

NOTE: I also tried mounting the first partition of the image and I can see the files in it, so I think the drive image is OK.

I tried creating a VM with a raw disk and actually installing Ubuntu in it to see what was created. When I fdisk -l that image I get this:

Code: 
Disk 150/vm-150-disk-1.raw: 6 GiB, 6442450944 bytes, 12582912 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: B60B5B2D-D757-4D3C-9E4A-9F7C2BDA0C2A
Device                    Start      End  Sectors  Size Type
150/vm-150-disk-1.raw1     2048     4095     2048    1M BIOS boot
150/vm-150-disk-1.raw2     4096 11538431 11534336  5.5G Linux filesystem
150/vm-150-disk-1.raw3 11538432 12580863  1042432  509M Linux swap




So the new VM has a BIOS boot partition, whereas my existing one doesn't, which might affect the booting, but should still be visible.



PARTITION TABLES

I ran gpart -l on the Ganeti image to check the partition table was OK:



Ganeti image:




Code: 
GPT fdisk (gdisk) version 1.0.1               
                                              
Partition table scan:                                                               
  MBR: MBR only                                                                         
  BSD: not present                                                               
  APM: not present                                                                                                                                     
  GPT: not present                                                                                                                         
                                                                                                                                                                
                                                                                                                                              
***************************************************************                 
Found invalid GPT and valid MBR; converting MBR to GPT format
in memory.                                         
***************************************************************
                                                      
Disk 102/vm-102-disk-1.raw: 27262976 sectors, 13.0 GiB
Logical sector size: 512 bytes                   
Disk identifier (GUID): C196314C-9AB7-4667-AD75-A7B4A1332CEC
Partition table holds up to 128 entries               
First usable sector is 34, last usable sector is 27262942
Partitions will be aligned on 2048-sector boundaries       
Total free space is 2103229 sectors (1.0 GiB)               
                                                                          
Number  Start (sector)    End (sector)  Size       Code  Name     
   1            2048        24117247   11.5 GiB    8300  Linux filesystem             
   5        24119296        25163775   510.0 MiB   8200  Linux swap

So, the Ganeti image appears to be MBR, not GPT, but it's definitely there. As far as I can tell KVM should be OK with MBR, ...it is on the Ganeti servers.

VIRTIO DRIVERS
I confirmed that the virtio drivers are in the Live disk using this command:

/sbin/lsmod | grep vi

Which gave this output:

Code: 
virtio_net             45056  0
virtio_blk             20480  0


...which I read means that the disk and network virtio driver are in use.

I also ran:

cat "/boot/config-`uname -r`" | grep -i vir

Which gave me this:

Code: 
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
CONFIG_PARAVIRT_SPINLOCKS=y
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
CONFIG_VIRT_TO_BUS=y
CONFIG_VIRTIO_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS_COMMON=m
CONFIG_NET_9P_VIRTIO=m
CONFIG_VIRTIO_BLK=m
CONFIG_VIRTIO_BLK_SCSI=y
CONFIG_SCSI_VIRTIO=m
CONFIG_VIRTIO_NET=m
CONFIG_CAIF_VIRTIO=m
CONFIG_VIRTIO_CONSOLE=y
CONFIG_HW_RANDOM_VIRTIO=m
CONFIG_REGULATOR_VIRTUAL_CONSUMER=m
CONFIG_DRM_VIRTIO_GPU=m
# CONFIG_FB_VIRTUAL is not set
CONFIG_SND_SEQ_VIRMIDI=m
CONFIG_SND_VIRMIDI=m
CONFIG_SND_VIRTUOSO=m
CONFIG_DMA_VIRTUAL_CHANNELS=m
CONFIG_VFIO_VIRQFD=m
CONFIG_VIRT_DRIVERS=y
CONFIG_VIRTIO=y
# Virtio drivers
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_LEGACY=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_INPUT=m
CONFIG_VIRTIO_MMIO=y
CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
CONFIG_RPMSG_VIRTIO=m
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_CRYPTO_DEV_VIRTIO=m
CONFIG_VIRTUALIZATION=y
CONFIG_DMA_VIRT_OPS=y

...but I have no idea if that's good or bad.

CONFIG
My VM config is thus:

Code: 
boot: cd
bootdisk: virtio0
cores: 2
ide2: ProxmoxVMs:iso/ubuntu-18.04.1-desktop-amd64.iso,media=cdrom,size=1907568K
memory: 2512
name: MinecraftTransfer
net0: virtio=B6:A7:B7:36:58:6C,bridge=vmbr0,tag=3
numa: 0
ostype: l26
smbios1: uuid=ee64500f-fe3a-4950-9008-f72332436622
sockets: 1
unused0: ProxmoxVMs:102/vm-102-disk-2.raw
vga: qxl
virtio0: ProxmoxVMs:102/vm-102-disk-1.raw,size=13G

GANETI INFO FOR VM

Incase it helps here is the output for gnt-instance info for the VM. I can't find the VM config files on the Ganteti server. =(

Code: 
  UUID: 7566465d-90a3-4bdc-8efb-3e55e58c626d
  Serial number: 43
  Creation time: 2018-02-02 16:54:27
  Modification time: 2018-10-13 19:48:22
  State: configured to be down, actual state is down
  Nodes:
    - primary: lg1.93.lan
      group: default (UUID 403c2ac0-779c-42b3-b3f8-9c2e7e105eb2)
    - secondaries: lg3.93.lan (group default, group UUID 403c2ac0-779c-42b3-b3f8-9c2e7e105eb2)
  Operating system: noop
  Operating system parameters:
  Allocated network port: 11000
  Hypervisor: kvm
  console connection: vnc to 127.0.0.1:11000 (node lg1.93.lan) (display 5100)
  Hypervisor parameters:
    acpi: default (True)
    boot_order: default (disk)
    cdrom2_image_path: default ()
    cdrom_disk_type: default ()
    cdrom_image_path: default ()
    cpu_cores: 1
    cpu_mask: default (all)
    cpu_sockets: default (0)
    cpu_threads: default (0)
    cpu_type: default ()
    disk_aio: default (threads)
    disk_cache: default (default)
    disk_type: default (paravirtual)
    floppy_image_path: default ()
    initrd_path: default ()
    kernel_args: default (ro)
    kernel_path: default ()
    keymap: default ()
    kvm_extra: default ()
    kvm_flag: default ()
    kvm_path: default (/usr/bin/kvm)
    machine_version: default ()
    mem_path: default ()
    migration_caps: default ()
    migration_downtime: default (30)
    nic_type: default (paravirtual)
    reboot_behavior: default (reboot)
    root_path: default (/dev/vda1)
    security_domain: default ()
    security_model: default (none)
    serial_console: default (True)
    serial_speed: default (38400)
    soundhw: default ()
    spice_bind: default ()
    spice_image_compression: default ()
    spice_ip_version: default (0)
    spice_jpeg_wan_compression: default ()
    spice_password_file: default ()
    spice_playback_compression: default (True)
    spice_streaming_video: default ()
    spice_tls_ciphers: default (HIGH:-DES:-3DES:-EXPORT:-DH)
    spice_use_tls: default (False)
    spice_use_vdagent: default (True)
    spice_zlib_glz_wan_compression: default ()
    usb_devices: default ()
    usb_mouse: default ()
    use_chroot: default (False)
    use_localtime: default (False)
    user_shutdown: default (False)
    vga: std
    vhost_net: default (False)
    virtio_net_queues: default (1)
    vnc_bind_address: 127.0.0.1
    vnc_password_file: default ()
    vnc_tls: default (False)
    vnc_x509_path: default ()
    vnc_x509_verify: default (False)
    vnet_hdr: default (True)
  Back-end parameters:
    always_failover: default (False)
    auto_balance: default (True)
    maxmem: 1232
    memory: default (1232)
    minmem: 1232
    spindle_use: default (1)
    vcpus: 1
  NICs:
    - nic/0:
      MAC: 00:16:37:2a:cc:e7
      IP: None
      mode: bridged
      link: br1
      vlan:
      network: None
      UUID: b1914b73-6789-4c36-8681-a509e702cf2a
      name: None
  Disk template: drbd
  Disks:
    - disk/0: drbd, size 13.0G
      access mode: rw
      nodeA: lg1.93.lan, minor=12
      nodeB: lg3.93.lan, minor=0
      port: 11001
      name: None
      UUID: 49965870-81f4-4b69-9a3c-76606d0792ee
      child devices:
        - child 0: plain, size 13.0G
          logical_id: gData/a1314bae-70cc-4106-9dfa-43b3b0fd1370.disk0_data
          on primary: /dev/gData/a1314bae-70cc-4106-9dfa-43b3b0fd1370.disk0_data (252:26)
          on secondary: /dev/gData/a1314bae-70cc-4106-9dfa-43b3b0fd1370.disk0_data (252:0)
          name: None
          UUID: bcdc667f-c5b7-4bb8-9b4b-f26ab46d5677
        - child 1: plain, size 128M
          logical_id: gData/a1314bae-70cc-4106-9dfa-43b3b0fd1370.disk0_meta
          on primary: /dev/gData/a1314bae-70cc-4106-9dfa-43b3b0fd1370.disk0_meta (252:27)
          on secondary: /dev/gData/a1314bae-70cc-4106-9dfa-43b3b0fd1370.disk0_meta (252:1)
          name: None
          UUID: eda2b01b-4d75-4543-8fe1-29c7f40b0c08
 
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