$ apt-get install rsync
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  rsync
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
Need to get 338 kB of archives.
After this operation, 692 kB of additional disk space will be used.
Get:1 http://ftp.us.debian.org/debian/ squeeze/main rsync i386 3.0.7-2 [338 kB]
Fetched 338 kB in 1s (240 kB/s)
Selecting previously deselected package rsync.
(Reading database ... 33789 files and directories currently installed.)
Unpacking rsync (from .../rsync_3.0.7-2_i386.deb) ...
Processing triggers for man-db ...
Setting up linux-image-2.6.32-5-686 (2.6.32-38) ...
Running depmod.
Running update-initramfs.
update-initramfs: Generating /boot/initrd.img-2.6.32-5-686
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 2.6.32-5-686 /boot/vmlinuz-2.6.32-5-686
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 2.6.32-5-686 /boot/vmlinuz-2.6.32-5-686
Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... Generating /boot/grub/default file and setting the default boot entry to 0
entry not specified.
run-parts: /etc/kernel/postinst.d/zz-update-grub exited with return code 1
Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-2.6.32-5-686.postinst line 799.
dpkg: error processing linux-image-2.6.32-5-686 (--configure):
 subprocess installed post-installation script returned error exit status 128
configured to not write apport reports
                                      Setting up linux-image-2.6.32-5-xen-686 (2.6.32-38) ...
Running depmod.
Running update-initramfs.
update-initramfs: Generating /boot/initrd.img-2.6.32-5-xen-686
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 2.6.32-5-xen-686 /boot/vmlinuz-2.6.32-5-xen-686
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 2.6.32-5-xen-686 /boot/vmlinuz-2.6.32-5-xen-686
Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... Generating /boot/grub/default file and setting the default boot entry to 0
entry not specified.
run-parts: /etc/kernel/postinst.d/zz-update-grub exited with return code 1
Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-2.6.32-5-xen-686.postinst line 799.
dpkg: error processing linux-image-2.6.32-5-xen-686 (--configure):
 subprocess installed post-installation script returned error exit status 2
configured to not write apport reports
                                      Setting up rsync (3.0.7-2) ...
update-rc.d: using dependency based boot sequencing
Errors were encountered while processing:
 linux-image-2.6.32-5-686
 linux-image-2.6.32-5-xen-686
E: Sub-process /usr/bin/dpkg returned an error code (1)