Looks to be triggered by casper-memdisk:
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.19.0-21-generic /boot/vmlinuz-3.19.0-21-generic update-initramfs: Generating /boot/initrd.img-3.19.0-21-generic E: /usr/share/initramfs-tools/hooks/casper-memdisk failed with return 1. update-initramfs: failed for /boot/initrd.img-3.19.0-21-generic with 1. run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1
Looks to be triggered by casper-memdisk:
run-parts: executing /etc/kernel/ postinst. d/initramfs- tools 3.19.0-21-generic /boot/vmlinuz- 3.19.0- 21-generic img-3.19. 0-21-generic initramfs- tools/hooks/ casper- memdisk failed with return 1. img-3.19. 0-21-generic with 1. postinst. d/initramfs- tools exited with return code 1
update-initramfs: Generating /boot/initrd.
E: /usr/share/
update-initramfs: failed for /boot/initrd.
run-parts: /etc/kernel/