I have experience this as well when attempting to install my custom compiled 2.6.28.x series kernel.
dpkg: error processing linux-image-2.6.28.7-em64t_1_amd64.deb (--install): trying to overwrite `/lib/firmware/atmsar11.fw', which is also in package linux-image-2.6.27.10-em64t dpkg-deb: subprocess paste killed by signal (Broken pipe) Here is the complete log: $ sudo dpkg -i linux-image-2.6.28.7-em64t_1_amd64.deb [sudo] password for squishy: (Reading database ... 144190 files and directories currently installed.) Unpacking linux-image-2.6.28.7-em64t (from linux-image-2.6.28.7-em64t_1_amd64.deb) ... Done. dpkg: error processing linux-image-2.6.28.7-em64t_1_amd64.deb (--install): trying to overwrite `/lib/firmware/atmsar11.fw', which is also in package linux-image-2.6.27.10-em64t dpkg-deb: subprocess paste killed by signal (Broken pipe) Running postrm hook script /sbin/update-grub. Searching for GRUB installation directory ... found: /boot/grub Searching for default file ... found: /boot/grub/default Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst Searching for splash image ... none found, skipping ... Found kernel: /boot/vmlinuz-2.6.27.10-em64t Found kernel: /boot/vmlinuz-2.6.27-11-generic Found kernel: /boot/memtest86+.bin Updating /boot/grub/menu.lst ... done Errors were encountered while processing: linux-image-2.6.28.7-em64t_1_amd64.deb -- cannot install linux-image-2.6.27-1-server and linux-image-2.6.27-1-generic together https://bugs.launchpad.net/bugs/262783 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs