as Robert Sander wrote in bug #74242: Binary package hint: initramfs-tools
The preinst script of initramfs-tools has the (old) bug from Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=393773, a missing backslash in the sed expression. This causes sed to fail with "sed: no input file" and install of initramfs-tools stops. This bug is only triggered when installing initramfs-tools for the first time and with an existing /etc/mkinitrd/modules file. I encountered this situation when upgrading from Debian sarge to Edgy yesterday. After removing the old initrd-tools package installing initramfs-tools was possible. ** Changed in: initramfs-tools (Ubuntu) Status: Fix Released => Unconfirmed -- typo in preinst script breaks initial installation https://launchpad.net/bugs/68628 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs