Booting from LVM takes me to initramfs prompt

I tried to upgrade to 13.10 a couple weeks back and had the same problem, so I reinstalled from 13.04 and then upgraded again today. I'm not sure if this is an lvm2 problem or a grub problem.

When I boot, I get to the initramfs system with the following alert:
ALERT! /dev/mapper/ubuntu-root does not exist

I do an ls -la /dev/mapper to see what there and there's another volume there. I then do the ls -la again and then all the volumes show up. I exit initramfs by typing exit and I'm good to go, i.e. my system works fine.

This is similar to bug:
https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1098450

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: lvm2 2.02.98-6ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
Date: Tue Oct 29 14:25:24 2013
InstallationDate: Installed on 2013-10-18 (11 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: lvm2
UpgradeStatus: Upgraded to saucy on 2013-10-29 (0 days ago)