Tell me how to install the sources for 4.4 kernel, I can not install the packages because they write that there are no sources for 4.4
UPDATE:
libselinux1:amd64 linux-firmware 1.127.23 linux-generic-lts-xenial 4.4.0.57.44 linux-headers-4.4.0-57 4.4.0-57.78~14.04.1 linux-headers-4.4.0-57-generic 4.4.0-57.78~14.04.1 linux-headers-generic-lts-xenial 4.4.0.57.44 llinux-image-4.4.0-57-generic 4.4.0-57.78~14.04.1 linux-image-extra-4.4.0-57-generic 4.4.0-57.78~14.04.1 linux-image-generic-lts-xenial 4.4.0.57.44 linux-libc-dev:amd64 3.13.0-106.153 linux-source 3.13.0.106.114 linux-source-3.13.0 3.13.0-106.153 util-linux make -C linux all make[1]: Entering directory `/usr/src/dahdi-linux-complete-2.11.1+2.11.1/linux' make -C drivers/dahdi/firmware firmware-loaders make[2]: Entering directory `/usr/src/dahdi-linux-complete-2.11.1+2.11.1/linux/drivers/dahdi/firmware' make[2]: Leaving directory `/usr/src/dahdi-linux-complete-2.11.1+2.11.1/linux/drivers/dahdi/firmware' You do not appear to have the sources for the 4.4.0-57-generic kernel installed. make[1]: *** [modules] Error 1 make[1]: Leaving directory `/usr/src/dahdi-linux-complete-2.11.1+2.11.1/linux' make: *** [all] Error 2 
