I can't delete some files on root / boot

You remove those by uninstalling old kernels. You don't delete the files as this will break your packages. What is the output of:

lsb_release -a; uname -a; dpkg -l | grep linux-image

Thanks

Hello again,
here is my output, and by the way, can you write me the files that I can uninstall, please ? Because I didn't know so mutch of Linux

WARNING:root:python-html2text is not present. HTML pages will not be converted into text.
toni@toni-300E4C-300E5C-300E7C:~$
toni@toni-300E4C-300E5C-300E7C:~$
toni@toni-300E4C-300E5C-300E7C:~$ lsb_release -a; uname -a; dpkg -l | grep linux-image
LSB Version: core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch:core-4.1-amd64:core-4.1-noarch:security-4.0-amd64:security-4.0-noarch:security-4.1-amd64:security-4.1-noarch
Distributor ID: Ubuntu
Description: Ubuntu 13.10
Release: 13.10
Codename: saucy
Linux toni-300E4C-300E5C-300E7C 3.11.0-18-generic #32-Ubuntu SMP Tue Feb 18 21:11:14 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
ii linux-image-3.11.0-12-generic 3.11.0-12.19 amd64 Linux kernel image for version 3.11.0 on 64 bit x86 SMP
ii linux-image-3.11.0-13-generic 3.11.0-13.20 amd64 Linux kernel image for version 3.11.0 on 64 bit x86 SMP
ii linux-image-3.11.0-14-generic 3.11.0-14.21 amd64 Linux kernel image for version 3.11.0 on 64 bit x86 SMP
ii linux-image-3.11.0-15-generic 3.11.0-15.25 amd64 Linux kernel image for version 3.11.0 on 64 bit x86 SMP
ii linux-image-3.11.0-17-generic 3.11.0-17.31 amd64 Linux kernel image for version 3.11.0 on 64 bit x86 SMP
ii linux-image-3.11.0-18-generic 3.11.0-18.32 amd64 Linux kernel image for version 3.11.0 on 64 bit x86 SMP
ii linux-image-extra-3.11.0-12-generic 3.11.0-12.19 amd64 Linux kernel extra modules for version 3.11.0 on 64 bit x86 SMP
ii linux-image-extra-3.11.0-13-generic 3.11.0-13.20 amd64 Linux kernel extra modules for version 3.11.0 on 64 bit x86 SMP
ii linux-image-extra-3.11.0-14-generic 3.11.0-14.21 amd64 Linux kernel extra modules for version 3.11.0 on 64 bit x86 SMP
ii linux-image-extra-3.11.0-15-generic 3.11.0-15.25 amd64 Linux kernel extra modules for version 3.11.0 on 64 bit x86 SMP
ii linux-image-extra-3.11.0-17-generic 3.11.0-17.31 amd64 Linux kernel extra modules for version 3.11.0 on 64 bit x86 SMP
iF linux-image-extra-3.11.0-18-generic 3.11.0-18.32 amd64 Linux kernel extra modules for version 3.11.0 on 64 bit x86 SMP
iU linux-image-generic 3.11.0.18.19 amd64 Generic Linux kernel image
toni@toni-300E4C-300E5C-300E7C:~$

that was all I've got. So see you soon, and many thanks
your Toni

sudo apt-get --purge remove linux-image-3.11.0-12-generic linux-image-3.11.0-13-generic linux-image-3.11.0-14-generic linux-image-3.11.0-15-generic

sudo apt-get --purge autoremove

sudo apt-get clean

Will clear it up for you and also clean up grub for you.

Hello, here is what I should do. I'll hope I did it right. So the Computer respond :

Thank you, If there was an error say it to me, please, your Toni

   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

depmod.....

DKMS: uninstall completed.
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.11.0-13-generic /boot/vmlinuz-3.11.0-13-generic
update-initramfs: Deleting /boot/initrd.img-3.11.0-13-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.11.0-13-generic /boot/vmlinuz-3.11.0-13-generic
grub.cfg wird erstellt …
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-18-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-18-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-17-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-17-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-15-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-15-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-14-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-14-generic
Found memtest86+ image: /memtest86+.bin
erledigt
Löschen der Konfigurationsdateien von linux-image-3.11.0-13-generic ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.11.0-13-generic /boot/vmlinuz-3.11.0-13-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.11.0-13-generic /boot/vmlinuz-3.11.0-13-generic
Entfernen von linux-image-extra-3.11.0-14-generic ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.11.0-14-generic /boot/vmlinuz-3.11.0-14-generic
update-initramfs: Deleting /boot/initrd.img-3.11.0-14-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.11.0-14-generic /boot/vmlinuz-3.11.0-14-generic
grub.cfg wird erstellt …
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-18-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-18-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-17-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-17-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-15-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-15-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-14-generic
Found memtest86+ image: /memtest86+.bin
erledigt
Löschen der Konfigurationsdateien von linux-image-extra-3.11.0-14-generic ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.11.0-14-generic /boot/vmlinuz-3.11.0-14-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.11.0-14-generic /boot/vmlinuz-3.11.0-14-generic
Entfernen von linux-image-3.11.0-14-generic ...
Examining /etc/kernel/prerm.d.
run-parts: executing /etc/kernel/prerm.d/dkms 3.11.0-14-generic /boot/vmlinuz-3.11.0-14-generic
dkms: removing: ndiswrapper 1.58 (3.11.0-14-generic) (x86_64)

-------- Uninstall Beginning --------
Module: ndiswrapper
Version: 1.58
Kernel: 3.11.0-14-generic (x86_64)
-------------------------------------

Status: Before uninstall, this module version was ACTIVE on this kernel.

ndiswrapper.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-14-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

depmod.......

DKMS: uninstall completed.
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.11.0-14-generic /boot/vmlinuz-3.11.0-14-generic
update-initramfs: Deleting /boot/initrd.img-3.11.0-14-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.11.0-14-generic /boot/vmlinuz-3.11.0-14-generic
grub.cfg wird erstellt …
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-18-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-18-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-17-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-17-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-15-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-15-generic
Found memtest86+ image: /memtest86+.bin
erledigt
Löschen der Konfigurationsdateien von linux-image-3.11.0-14-generic ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.11.0-14-generic /boot/vmlinuz-3.11.0-14-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.11.0-14-generic /boot/vmlinuz-3.11.0-14-generic
Entfernen von linux-image-extra-3.11.0-15-generic ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.11.0-15-generic /boot/vmlinuz-3.11.0-15-generic
update-initramfs: Deleting /boot/initrd.img-3.11.0-15-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.11.0-15-generic /boot/vmlinuz-3.11.0-15-generic
grub.cfg wird erstellt …
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-18-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-18-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-17-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-17-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-15-generic
Found memtest86+ image: /memtest86+.bin
erledigt
Löschen der Konfigurationsdateien von linux-image-extra-3.11.0-15-generic ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.11.0-15-generic /boot/vmlinuz-3.11.0-15-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.11.0-15-generic /boot/vmlinuz-3.11.0-15-generic
Entfernen von linux-image-3.11.0-15-generic ...
Examining /etc/kernel/prerm.d.
run-parts: executing /etc/kernel/prerm.d/dkms 3.11.0-15-generic /boot/vmlinuz-3.11.0-15-generic
dkms: removing: dahdi 2.5.0.1+dfsg-1ubuntu3 (3.11.0-15-generic) (x86_64)

-------- Uninstall Beginning --------
Module: dahdi
Version: 2.5.0.1+dfsg-1ubuntu3
Kernel: 3.11.0-15-generic (x86_64)
-------------------------------------

Status: Before uninstall, this module version was ACTIVE on this kernel.

dahdi_dummy.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_dynamic_eth.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_dynamic.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_dynamic_loc.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_echocan_jpah.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_echocan_kb1.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_echocan_mg2.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_echocan_sec2.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_echocan_sec.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_transcode.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

pciradio.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

tor2.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

wcb4xxp.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

wcfxo.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

wct1xxp.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

wct4xxp.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

wctc4xxp.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

wctdm.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

wctdm24xxp.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

wcte11xp.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

wcte12xp.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

xpd_fxo.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

xpd_fxs.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

xpd_pri.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

xpp.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

xpp_usb.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

xpd_bri.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_voicebus.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

opvxa1200.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

wcopenpci.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_echocan_oslec.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

echo.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/
rmdir: konnte »“ nicht entfernen: Datei oder Verzeichnis nicht gefunden
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

zaphfc.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

dahdi_vpmadt032_loader.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

ap400.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

opvxd115.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

depmod......

DKMS: uninstall completed.
dkms: removing: ndiswrapper 1.58 (3.11.0-15-generic) (x86_64)

-------- Uninstall Beginning --------
Module: ndiswrapper
Version: 1.58
Kernel: 3.11.0-15-generic (x86_64)
-------------------------------------

Status: Before uninstall, this module version was ACTIVE on this kernel.

ndiswrapper.ko:
 - Uninstallation
   - Deleting from: /lib/modules/3.11.0-15-generic/updates/dkms/
 - Original module
   - No original module was found for this module on this kernel.
   - Use the dkms install command to reinstall any previous module version.

depmod....

DKMS: uninstall completed.
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.11.0-15-generic /boot/vmlinuz-3.11.0-15-generic
update-initramfs: Deleting /boot/initrd.img-3.11.0-15-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.11.0-15-generic /boot/vmlinuz-3.11.0-15-generic
grub.cfg wird erstellt …
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-18-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-18-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-17-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-17-generic
Found memtest86+ image: /memtest86+.bin
erledigt
Löschen der Konfigurationsdateien von linux-image-3.11.0-15-generic ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.11.0-15-generic /boot/vmlinuz-3.11.0-15-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.11.0-15-generic /boot/vmlinuz-3.11.0-15-generic
linux-image-extra-3.11.0-18-generic (3.11.0-18.32) wird eingerichtet ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.11.0-18-generic /boot/vmlinuz-3.11.0-18-generic
run-parts: executing /etc/kernel/postinst.d/dkms 3.11.0-18-generic /boot/vmlinuz-3.11.0-18-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.11.0-18-generic /boot/vmlinuz-3.11.0-18-generic
update-initramfs: Generating /boot/initrd.img-3.11.0-18-generic
run-parts: executing /etc/kernel/postinst.d/pm-utils 3.11.0-18-generic /boot/vmlinuz-3.11.0-18-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.11.0-18-generic /boot/vmlinuz-3.11.0-18-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.11.0-18-generic /boot/vmlinuz-3.11.0-18-generic
grub.cfg wird erstellt …
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-18-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-18-generic
Linux-Abbild gefunden: /boot/vmlinuz-3.11.0-17-generic
initrd-Abbild gefunden: /boot/initrd.img-3.11.0-17-generic
Found memtest86+ image: /memtest86+.bin
erledigt
linux-image-generic (3.11.0.18.19) wird eingerichtet ...
linux-generic (3.11.0.18.19) wird eingerichtet ...
toni@toni-300E4C-300E5C-300E7C:~$
toni@toni-300E4C-300E5C-300E7C:~$ sudo apt-get --purge autoremove
Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut.
Statusinformationen werden eingelesen.... Fertig
Die folgenden Pakete werden ENTFERNT:
  python-aptdaemon-gtk* python-aptdaemon.gtkwidgets*
0 aktualisiert, 0 neu installiert, 2 zu entfernen und 0 nicht aktualisiert.
Nach dieser Operation werden 161 kB Plattenplatz freigegeben.
Möchten Sie fortfahren [J/n]? j
(Lese Datenbank ... 731196 Dateien und Verzeichnisse sind derzeit installiert.)
Entfernen von python-aptdaemon-gtk ...
Entfernen von python-aptdaemon.gtkwidgets ...
toni@toni-300E4C-300E5C-300E7C:~$
toni@toni-300E4C-300E5C-300E7C:~$ sudo apt-get clean
toni@toni-300E4C-300E5C-300E7C:~$

Thanks actionparsnip, that solved my question.

why "vmlinuz" and not "vmlinux" ?

http://en.wikipedia.org/wiki/Vmlinux

Source:
https://www.google.co.uk/search?q=why+%22vmlinuz%22+and+not+%22vmlinux%22&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a&channel=sb&gfe_rd=cr&ei=NiQrU5CbIa7R8gfirIGAAQ

Not hard

ok - got it. Thanks ; I was wondering, I came across this as I was debugging a system after a failed upgrade to 3.11.0-18 . The upgrade produces several compile and config failures & errors . Your suggestion in comment # 3 clears this up.

Phight suggests this article as an answer to your question:
FAQ #93: “Cant' use sudo: unable to resolve host ....”.

Hello,
I have a similar problem (not enough space in /boot to install new updates), but the solution offered here won't work for me.
Here is the output of lsb_release -a; uname -a; dpkg -l | grep linux-image:

fabian@XPS:~$ lsb_release -a; uname -a; dpkg -l | grep linux-image
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.1 LTS
Release: 14.04
Codename: trusty
Linux XPS 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
rc linux-image-3.13.0-24-generic 3.13.0-24.47 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
rc linux-image-3.13.0-27-generic 3.13.0-27.50 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
rc linux-image-3.13.0-29-generic 3.13.0-29.53 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
rc linux-image-3.13.0-30-generic 3.13.0-30.55 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
rc linux-image-3.13.0-32-generic 3.13.0-32.57 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-33-generic 3.13.0-33.58 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-34-generic 3.13.0-34.60 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-35-generic 3.13.0-35.62 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-36-generic 3.13.0-36.63 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-37-generic 3.13.0-37.64 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-39-generic 3.13.0-39.66 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
rc linux-image-extra-3.13.0-24-generic 3.13.0-24.47 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
rc linux-image-extra-3.13.0-27-generic 3.13.0-27.50 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
rc linux-image-extra-3.13.0-29-generic 3.13.0-29.53 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
rc linux-image-extra-3.13.0-30-generic 3.13.0-30.55 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
rc linux-image-extra-3.13.0-32-generic 3.13.0-32.57 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-33-generic 3.13.0-33.58 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-34-generic 3.13.0-34.60 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-35-generic 3.13.0-35.62 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-36-generic 3.13.0-36.63 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-37-generic 3.13.0-37.64 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-39-generic 3.13.0-39.66 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-generic 3.13.0.39.46 amd64 Generic Linux kernel image

I have tried to remove one of the packages and this is what I get:

fabian@XPS:~$ sudo apt-get remove linux-image-3.13.0-24-generic
[sudo] password for fabian:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package 'linux-image-3.13.0-24-generic' is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 13 not upgraded.

Any help will be appreciated!

Thanks,
Fabian

sudo dpkg -P linux-image-3.13.0-24-generic linux-image-3.13.0-27-generic linux-image-3.13.0-29-generic

sudo dpkg -P linux-image-3.13.0-30-generic linux-image-3.13.0-32-generic

sudo dpkg -P linux-image-extra-3.13.0-24-generic linux-image-extra-3.13.0-27-generic

sudo dpkg -P linux-image-extra-3.13.0-29-generic inux-image-extra-3.13.0-30-generic inux-image-extra-3.13.0-32-generic

Will clean that lot up.

Thank you actionsparsnip!

That gave me the extra space needed to install the latest updates!

Thank you for responding so quickly!

:)

Fabian