package linux-image-2.6.32-30-generic 2.6.32-30.59 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

power failure rebooted computer while performing an upgrade. Booting failed. (That's a bug; upgrading software shouldn't leave the computer in a state where a reboot will fail.) Built a live cd on another computer. Booted from the live cd and did the upgrade plus dist-upgrade. Upgrades mostly worked except they claimed they couldn't find /boot/vmlinuz-2.6.32-30... I rebooted from the hard disk drive, which now worked. I logged in and used the Upgrade Manager to check for upgrades. Later I noticed this crash report was available for sending

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-30-generic 2.6.32-30.59
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-24.43-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: cesium 1491 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfdff4000 irq 22'
   Mixer name : 'Realtek ALC888'
   Components : 'HDA:10ec0888,1028020d,00100001'
   Controls : 41
   Simple ctrls : 23
Date: Mon Apr 18 22:14:53 2011
ErrorMessage: subprocess installed post-installation script returned error exit status 2
Frequency: This has only happened once.
HibernationDevice: RESUME=UUID=795f9f5d-d606-48a9-9feb-23871df7879c
IwConfig:
 lo no wireless extensions.

 eth1 no wireless extensions.
MachineType: Dell Inc. Inspiron 530
ProcCmdLine: root=UUID=5c775f9e-1411-4e21-a7bf-d1f69adac0ab ro quiet splash vga=864
RelatedPackageVersions: linux-firmware 1.34.4
RfKill:

SourcePackage: linux
Title: package linux-image-2.6.32-30-generic 2.6.32-30.59 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
WpaSupplicantLog:

dmi.bios.date: 03/20/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.0.13
dmi.board.name: 0RY007
dmi.board.vendor: Dell Inc.
dmi.board.version: ���
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: OEM
dmi.modalias: dmi:bvnDellInc.:bvr1.0.13:bd03/20/2008:svnDellInc.:pnInspiron530:pvr:rvnDellInc.:rn0RY007:rvr:cvnDellInc.:ct3:cvrOEM:
dmi.product.name: Inspiron 530
dmi.sys.vendor: Dell Inc.