$ sudo bash -x /etc/kernel/postinst.d/initramfs-tools 3.0.0-16-generic /boot/vmlinuz-3.0.0-16-generic
+ version=3.0.0-16-generic
+ bootopt=
+ '[' -z 3.0.0-16-generic ']'
+ '[' -n '' ']'
+ '[' -n /boot/vmlinuz-3.0.0-16-generic ']'
++ dirname /boot/vmlinuz-3.0.0-16-generic
+ bootdir=/boot
+ bootopt='-b /boot'
+ '[' -n '' ']'
+ INITRAMFS_TOOLS_KERNEL_HOOK=1
+ update-initramfs -c -t -k 3.0.0-16-generic -b /boot
update-initramfs: Generating /boot/initrd.img-3.0.0-16-generic
/usr/sbin/mkinitramfs: line 355: : No such file or directory
E: mkinitramfs failure find 141 cpio 141 gzip 1
update-initramfs: failed for /boot/initrd.img-3.0.0-16-generic with 1.
alex@horus:~$ sudo bash -x update-initramfs -c -t -k 3.0.0-16-generic -b /boot
+ STATEDIR=/var/lib/initramfs-tools
+ BOOTDIR=/boot
+ CONF=/etc/initramfs-tools/update-initramfs.conf
+ USETRIGGERS=true
+ mode=
+ version=
+ update_initramfs=yes
+ backup_initramfs=no
+ set -e
+ '[' -r /etc/initramfs-tools/update-initramfs.conf ']'
+ . /etc/initramfs-tools/update-initramfs.conf
++ update_initramfs=yes
++ backup_initramfs=no
+ case "$DPKG_MAINTSCRIPT_PACKAGE" in
+ verbose=0
+ yes=0
+ takeover=1
+ getopts 'k:cudyvtb:h?' flag
+ case "${flag}" in
+ mode=c
+ getopts 'k:cudyvtb:h?' flag
+ case "${flag}" in
+ takeover=1
+ getopts 'k:cudyvtb:h?' flag
+ case "${flag}" in
+ version=3.0.0-16-generic
+ getopts 'k:cudyvtb:h?' flag
+ case "${flag}" in
+ BOOTDIR=/boot
+ '[' '!' -d /boot ']'
+ getopts 'k:cudyvtb:h?' flag
+ shift 6
+ '[' 0 -ne 0 ']'
+ '[' -z c ']'
+ '[' 3.0.0-16-generic = all ']'
+ '[' yes = all ']'
+ case "${mode}" in
+ create
+ '[' -z 3.0.0-16-generic ']'
+ set_initramfs
+ initramfs=/boot/initrd.img-3.0.0-16-generic
+ '[' 1 = 0 ']'
+ generate_initramfs
+ echo 'update-initramfs: Generating /boot/initrd.img-3.0.0-16-generic'
update-initramfs: Generating /boot/initrd.img-3.0.0-16-generic
+ OPTS=-o
+ '[' 0 = 1 ']'
+ mkinitramfs -o /boot/initrd.img-3.0.0-16-generic.new 3.0.0-16-generic
/usr/sbin/mkinitramfs: line 355: : No such file or directory
E: mkinitramfs failure find 141 cpio 141 gzip 1
+ mkinitramfs_return=1
+ remove_initramfs_bak
+ '[' -z '' ']'
+ return 0
+ rm -f /boot/initrd.img-3.0.0-16-generic.new
+ '[' 1 = 2 ']'
+ echo 'update-initramfs: failed for /boot/initrd.img-3.0.0-16-generic with 1.'
update-initramfs: failed for /boot/initrd.img-3.0.0-16-generic with 1.
+ exit 1