Bug#797878: QNAP TS-219P II bricked by linux-image-4.1.0-0.bpo.1-kirkwood (4.1.3-1~bpo8+1) from jessie-backports: missing dependency on updated flash-kernel package

["Robert Schlabbach" <Robert.Schlabbach@gmx.net>]

Package: linux-image-4.1.0-0.bpo.1-kirkwood
Version: 4.1.3-1~bpo8+1

Installing this package from the jessie-backports distribution "bricked" my QNAP TS-219P II. The Linux kernel no longer boots. Attaching a serial console revealed that the Linux kernel did not recognize the machine id.

Further investigation revealed that the flash-kernel package version 3.35 in debian jessie neglected to append the DTB to the Linux kernel when flashing it. flash-kernel package version 3.45 from the unstable distribution has additional entries in its database, stating that this machine needs to have a DTB appended for Linux kernel versions 3.17 or later.

Proposed fix: Add flash-kernel 3.45 to jessie-backports and add a dependency of any Linux kernels 3.17 or later on at least this package version.

Best Regards,
Robert Schlabbach