New Instance doesnt boot - Booting stops after "Booting from 0000:7c00"

[Narasimhan N]

I am trying to create an instance from a custom image (Oracle Linux)

I am able to prep the image and load the image file.

When I create the instance from the image file, the serial output log  stops after "Booting from 0000:7c00"

===========From serial output log =============================

Returned 118784 bytes of ZoneHigh

e820 map has 7 items:

  0: 0000000000000000 - 000000000009fc00 = 1 RAM

  1: 000000000009fc00 - 00000000000a0000 = 2 RESERVED

  2: 00000000000f0000 - 0000000000100000 = 2 RESERVED

  3: 0000000000100000 - 00000000bfffd000 = 1 RAM

  4: 00000000bfffd000 - 00000000c0000000 = 2 RESERVED

  5: 00000000fffbc000 - 0000000100000000 = 2 RESERVED

  6: 0000000100000000 - 0000000400000000 = 1 RAM

Unable to lock ram - bridge not found

KBD: int09 handler: AL=0

enter handle_19:

  NULL

Booting from Hard Disk 0...

Booting from 0000:7c00


======================================================================


1) I validated the steps given in (My Persistent Disk Doesnt Boot section)

https://cloud.google.com/compute/docs/troubleshooting#pdboot

2) The VM uses GRUB to load

 sudo file -sL /dev/sda/dev/sda: x86 boot sector; GRand Unified Bootloader, stage1 version 0x3, stage2
address 0x2000, stage2 segment 0x200, GRUB version 0.94; partition 1: ID=0x83, starthead 0, startsector 2048, 20967425 sectors, code

offset 0x48

3) And the MBR is valid as well.

Any thoughts ? Any pointers to what I need to check / validate ?

Has anyone faced similar issues before ?

[Faizan (Google Cloud Support)]

Hello Narasimhan,

Sharing some links which might be useful. 

You can go through this article to confirm the requirements (e.g. Kernel, network configurations etc) for building an image for GCE instance. This video has the steps to create an image for GCE using virtualbox.

I hope that helps.

Faizan