[Bug 1488594] Re: Nodes cannot boot after a storage disk replacement

[Gavin Panella]

Even when a node has been deployed, the node still attempts to PXE boot
from MAAS each time it's rebooted. MAAS knows it should boot locally and
gives the following configuration to PXELINUX:

  DEFAULT local

  LABEL local
    LOCALBOOT 0

It appears that this does not do the right thing for your hardware. Put
another way, it does not do the same thing as your machine's BIOS does
when the network is unavailable.

I suspect this is a bug in PXELINUX and/or your hardare. There may be
something that MAAS can do to help, but I don't think it's the cause, so
I'll target this bug at PXELINUX and mark it Invalid in MAAS for now.


** Also affects: syslinux (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: maas
       Status: Confirmed => Invalid

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Title:
  Nodes cannot boot after a storage disk replacement

Status in MAAS:
  Invalid
Status in syslinux package in Ubuntu:
  New

Bug description:
  I'm experiencing this issue when I replace any osd disk on any ceph
  storage node and then reboot it. Immediatly after the node pxe boots,
  the node will hang at a "booting local disk" message and fails to
  timeout or boot. A work-around I've found to get a node to boot after
  a storage disk replacement is to momentarilly disable maas from
  managing the network after the power on of a node who's disk has been
  replaced; following that, after the node pxe boot times out and it
  results to booting from local disk into the os, I re-enable maas
  management on that network so the node gets an ip and continues the
  boot process and eventually successfully boots.

  It would be nice to get some feedback on what is going on here, and
  also a best practice for what/how to proceed in the case when you need
  to swap storage disks.

  Thanks!

  maas.log <-- http://paste.ubuntu.com/12193844/

  clusterd.log <-- http://paste.ubuntu.com/12193842/

  maas - 1.8.0+bzr4001-0ubuntu2~trusty1
  trusty - 14.04.3

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