On the hung boots, there is no recorded output to disk unfortunately.
This is what's installed on the machine running 108 nopti:
jstanford@www:~$ dpkg -l linux* |grep ii
ii linux-base 4.0ubuntu1 all Linux image base package
ii linux-firmware 1.157.14 all Firmware for Linux kernel drivers
ii linux-generic 4.4.0.109.114 amd64 Complete Generic Linux kernel and headers
ii linux-headers-4.4.0-104 4.4.0-104.127 all Header files related to Linux kernel version 4.4.0
ii linux-headers-4.4.0-104-generic 4.4.0-104.127 amd64 Linux kernel headers for version 4.4.0 on 64 bit x86 SMP
ii linux-headers-4.4.0-108 4.4.0-108.131 all Header files related to Linux kernel version 4.4.0
ii linux-headers-4.4.0-108-generic 4.4.0-108.131 amd64 Linux kernel headers for version 4.4.0 on 64 bit x86 SMP
ii linux-headers-4.4.0-109 4.4.0-109.132 all Header files related to Linux kernel version 4.4.0
ii linux-headers-4.4.0-109-generic 4.4.0-109.132 amd64 Linux kernel headers for version 4.4.0 on 64 bit x86 SMP
ii linux-headers-generic 4.4.0.109.114 amd64 Generic Linux kernel headers
ii linux-image-4.4.0-104-generic 4.4.0-104.127 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-108-generic 4.4.0-108.131 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-109-generic 4.4.0-109.132 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-104-generic 4.4.0-104.127 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-108-generic 4.4.0-108.131 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-109-generic 4.4.0-109.132 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-generic 4.4.0.109.114 amd64 Generic Linux kernel image
Additional info in hopes it proves useful.
On the hung boots, there is no recorded output to disk unfortunately.
This is what's installed on the machine running 108 nopti: 4.4.0-104 4.4.0-104.127 all Header files related to Linux kernel version 4.4.0 4.4.0-104- generic 4.4.0-104.127 amd64 Linux kernel headers for version 4.4.0 on 64 bit x86 SMP 4.4.0-108 4.4.0-108.131 all Header files related to Linux kernel version 4.4.0 4.4.0-108- generic 4.4.0-108.131 amd64 Linux kernel headers for version 4.4.0 on 64 bit x86 SMP 4.4.0-109 4.4.0-109.132 all Header files related to Linux kernel version 4.4.0 4.4.0-109- generic 4.4.0-109.132 amd64 Linux kernel headers for version 4.4.0 on 64 bit x86 SMP generic 4.4.0.109.114 amd64 Generic Linux kernel headers 4.4.0-104- generic 4.4.0-104.127 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP 4.4.0-108- generic 4.4.0-108.131 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP 4.4.0-109- generic 4.4.0-109.132 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP extra-4. 4.0-104- generic 4.4.0-104.127 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP extra-4. 4.0-108- generic 4.4.0-108.131 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP extra-4. 4.0-109- generic 4.4.0-109.132 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
jstanford@www:~$ dpkg -l linux* |grep ii
ii linux-base 4.0ubuntu1 all Linux image base package
ii linux-firmware 1.157.14 all Firmware for Linux kernel drivers
ii linux-generic 4.4.0.109.114 amd64 Complete Generic Linux kernel and headers
ii linux-headers-
ii linux-headers-
ii linux-headers-
ii linux-headers-
ii linux-headers-
ii linux-headers-
ii linux-headers-
ii linux-image-
ii linux-image-
ii linux-image-
ii linux-image-
ii linux-image-
ii linux-image-
ii linux-image-generic 4.4.0.109.114 amd64 Generic Linux kernel image