Erro ao instalar softwares

Question

Sempre que eu instalo qualquer software / pacote, recebo o seguinte resultado. O software fica instalado e funciona corretamente mas isso não é a saída suposta. O que há de errado com o meu sistema?

Setting up extlinux (2:4.05+dfsg-2) ...
P: Checking for EXTLINUX directory... found.
P: Writing config for /boot/vmlinuz-3.5.0-49-generic...
P: Writing config for /boot/vmlinuz-3.5.0-36-generic...
P: Writing config for FreeDOS on /dev/sda1...
P: Installing debian theme...ln: failed to create symbolic link '/boot/extlinux/themes/debian': Operation not permitted
dpkg: error processing extlinux (--configure):
 subprocess installed post-installation script returned error exit status 1
Setting up crossplatformui:i386 (1.0.27) ...
Rather than invoking init scripts through /etc/init.d, use the service(8)
utility, e.g. service acpid restart

Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the stop(8) and then start(8) utilities,
e.g. stop acpid ; start acpid. The restart(8) utility is also available.
acpid stop/waiting
acpid start/running, process 18879
package libqtgui4 exist
QT_VERSION = 4
make -C /lib/modules/3.5.0-49-generic/build M=/usr/local/bin/ztemtApp/zteusbserial/below2.6.27 modules
make[1]: Entering directory '/usr/src/linux-headers-3.5.0-49-generic'
  CC [M]  /usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.o
/usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.c:34:28: fatal error: linux/smp_lock.h: No such file or directory
compilation terminated.
scripts/Makefile.build:307: recipe for target '/usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.o' failed
make[2]: *** [/usr/local/bin/ztemtApp/zteusbserial/below2.6.27/usb-serial.o] Error 1
Makefile:1207: recipe for target '_module_/usr/local/bin/ztemtApp/zteusbserial/below2.6.27' failed
make[1]: *** [_module_/usr/local/bin/ztemtApp/zteusbserial/below2.6.27] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-3.5.0-49-generic'
Makefile:18: recipe for target 'modules' failed
make: *** [modules] Error 2
dpkg: error processing crossplatformui:i386 (--configure):
 subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
 extlinux
 crossplatformui:i386
E: Sub-process /usr/bin/dpkg returned an error code (1)

Isso ocorre mesmo durante a instalação do Centro de Software :

E há um erro enquanto sudo apt-get update sobre a ferramenta de ajuste de unidade também.

Nota: Este erro se tornou longo depois de tentar instalar o Qt Creator, antes era apenas cerca de quatro e cinco linhas e agora é muito longo.