Удаление установки показывает ошибку, но работает почему?

При удалении или установке программы я получаю следующее сообщение, но он правильно устанавливает или удаляет. пожалуйста, помогите мне решить это.

Package operation failed
The installation or removal of a software package failed  

Details

installArchives() failed: (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 190360 files and directories currently installed.)
Removing mahjongg ...
Processing triggers for man-db ...
Processing triggers for libglib2.0-0 ...
Processing triggers for hicolor-icon-theme ...
Processing triggers for bamfdaemon ...
Rebuilding /usr/share/applications/bamf.index...
Processing triggers for desktop-file-utils ...
Processing triggers for gnome-menus ...
Setting up linux-image-3.2.0-24-generic-pae (3.2.0-24.39) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.2.0-24-generic-pae /boot/vmlinuz-3.2.0-24-generic-pae
update-initramfs: Generating /boot/initrd.img-3.2.0-24-generic-pae
cryptsetup: WARNING: failed to detect canonical device of overlayfs
cryptsetup: WARNING: could not determine root device from /etc/fstab
run-parts: executing /etc/kernel/postinst.d/pm-utils 3.2.0-24-generic-pae /boot/vmlinuz-3.2.0-24-generic-pae
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.2.0-24-generic-pae /boot/vmlinuz-3.2.0-24-generic-pae
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.2.0-24-generic-pae /boot/vmlinuz-3.2.0-24-generic-pae
/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).
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-3.2.0-24-generic-pae.postinst line 1010.
dpkg: error processing linux-image-3.2.0-24-generic-pae (--configure):
 subprocess installed post-installation script returned error exit status 2
No apport report written because MaxReports is reached already
dpkg: dependency problems prevent configuration of linux-image-generic-pae:
 linux-image-generic-pae depends on linux-image-3.2.0-24-generic-pae; however:
  Package linux-image-3.2.0-24-generic-pae is not configured yet.
dpkg: error processing linux-image-generic-pae (--configure):
 dependency problems - leaving unconfigured
No apport report written because MaxReports is reached already
dpkg: dependency problems prevent configuration of linux-generic-pae:
 linux-generic-pae depends on linux-image-generic-pae (= 3.2.0.24.26); however:
  Package linux-image-generic-pae is not configured yet.
dpkg: error processing linux-generic-pae (--configure):
 dependency problems - leaving unconfigured
No apport report written because MaxReports is reached already
Errors were encountered while processing:
 linux-image-3.2.0-24-generic-pae
 linux-image-generic-pae
 linux-generic-pae
Error in function: 
Setting up linux-image-3.2.0-24-generic-pae (3.2.0-24.39) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.2.0-24-generic-pae /boot/vmlinuz-3.2.0-24-generic-pae
update-initramfs: Generating /boot/initrd.img-3.2.0-24-generic-pae
cryptsetup: WARNING: failed to detect canonical device of overlayfs
cryptsetup: WARNING: could not determine root device from /etc/fstab
run-parts: executing /etc/kernel/postinst.d/pm-utils 3.2.0-24-generic-pae /boot/vmlinuz-3.2.0-24-generic-pae
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.2.0-24-generic-pae /boot/vmlinuz-3.2.0-24-generic-pae
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.2.0-24-generic-pae /boot/vmlinuz-3.2.0-24-generic-pae
/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?).
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-3.2.0-24-generic-pae.postinst line 1010.
dpkg: error processing linux-image-3.2.0-24-generic-pae (--configure):
 subprocess installed post-installation script returned error exit status 2
dpkg: dependency problems prevent configuration of linux-image-generic-pae:
 linux-image-generic-pae depends on linux-image-3.2.0-24-generic-pae; however:
  Package linux-image-3.2.0-24-generic-pae is not configured yet.
dpkg: error processing linux-image-generic-pae (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of linux-generic-pae: