branch submission troubles (lbox/bzr)

[Gary Poster]

Hi all.  I'm unable to submit right now.

As far as I know, I started my current juju dev environment as described
in the branch docs, including cobzr and lbox.

Here's what I believe to be the heart of the issue, as reported by `lbox
submit -v`:

"""
2013/03/06 00:19:22 Merging branch
/home/gary/workgo/src/launchpad.net/juju-core onto
/home/gary/workgo/src/launchpad.net/juju-core/.bzr/cobzr/lbox-087594615/lbox
2013/03/06 00:19:26 error: Failed to run "bzr merge": exit status 3
-----
bzr: ERROR: Cannot lock
LockDir(chroot-95657744:///%2Bbranch/juju-core/.bzr/branch/lock):
Transport operation not possible: readonly transport
HPSS calls: 7 (0 vfs)
SmartSSHClientMedium(bzr+ssh://gary@bazaar.launchpad.net/)
"""

The full lbox output is here: http://pastebin.ubuntu.com/5589597/ .  I
doubt experts will need the .bzr.log bits to help me, but the pertinent
excerpt is http://pastebin.ubuntu.com/5589607/ .  I'm in a lightweight
checkout, which I assume was set up by lbox:

$ bzr info
Lightweight checkout (format: 2a)
Location:
  light checkout root: .
   checkout of branch: .bzr/cobzr/megawatcher_delta
    shared repository: .bzr/cobzr

Related branches:
    push branch:
bzr+ssh://bazaar.launchpad.net/~gary/juju-core/megawatcher_delta/
  parent branch: .bzr/cobzr/master
  submit branch: bzr+ssh://bazaar.launchpad.net/+branch/juju-core

Any ideas?  I'll ask at the sprint tomorrow, but I thought sending out
the data wouldn't hurt.

This looks vaguely similar to https://bugs.launchpad.net/bzr/+bug/994278
, but that didn't have anything to help.

Thanks!

Gary