natty linux-image-2.6.38-1000-linaro-lt-mx5 upgrade fails

Using developer image, natty, doing package updates the linux-image-2.6.38-1000-linaro-lt-mx5 package fails during setup:

Setting up linux-image-2.6.38-1000-linaro-lt-mx5 (2.6.38-1000.11) ...
Running depmod.
update-initramfs: Generating /boot/initrd.img-2.6.38-1000-linaro-lt-mx5
Using u-boot partition: /dev/mmcblk0p2
mount: wrong fs type, bad option, bad superblock on /dev/mmcblk0p2,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail or so

Failed to create initrd image.
dpkg: error processing linux-image-2.6.38-1000-linaro-lt-mx5 (--configure):
 subprocess installed post-installation script returned error exit status 2
Setting up rsyslog (4.6.4-2ubuntu4.1) ...
rsyslog stop/waiting
rsyslog start/running, process 30109
Setting up u-boot-linaro-lt-mx53loco (2011.09.5-0ubuntu2~ppa2) ...
Setting up u-boot-linaro-mx51evk (2011.09.5-0ubuntu2~ppa1) ...
Errors were encountered while processing:
 linux-image-2.6.38-1000-linaro-lt-mx5
E: Sub-process /usr/bin/dpkg returned an error code (1)

linaro-media-create set up the file system, partitions. Here's what fdisk says on the matter:

root@despina:~# fdisk /dev/mmcblk0
GNU Fdisk 1.2.4
Copyright (C) 1998 - 2006 Free Software Foundation, Inc.
This program is free software, covered by the GNU General Public License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

Using /dev/mmcblk0
Command (m for help): p

Disk /dev/mmcblk0: 8 GB, 8029962240 bytes
248 heads, 62 sectors/track, 1020 cylinders
Units = cylinders of 15376 * 512 = 7872512 bytes

       Device Boot Start End Blocks Id System
/dev/mmcblk0p1 1 1 7657 da Non-FS data
Warning: Partition 1 does not end on cylinder boundary.
/dev/mmcblk0p2 * 1 8 53816 c FAT32 LBA
Warning: Partition 2 does not end on cylinder boundary.
/dev/mmcblk0p3 8 1021 7787944 83 Linux
Warning: Partition 3 does not end on cylinder boundary.

root@despina:/mnt# mount /dev/mmcblk0p2 ./boot
mount: wrong fs type, bad option, bad superblock on /dev/mmcblk0p2,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail or so

root@despina:/mnt# mount -tmsdos /dev/mmcblk0p2 ./boot
root@despina:/mnt# ls boot
boot.scr boot.txt uimage uinitrd

root@despina:/mnt# cat /etc/fstab
# UNCONFIGURED FSTAB FOR BASE SYSTEM

UUID=6af2dfba-9f39-4e46-b941-f841836e281c / ext4 errors=remount-ro 0 1