I tested with the PPA and it looks good in an initial test. Before, upgrading initramfs-tools and rebooting would result in AWS instance being unreachable. Now, it looks good!
$ dpkg -l|grep initramfs-tools
ii initramfs-tools 0.122ubuntu8.3+lp1631474 all generic modular initramfs generator (automation)
ii initramfs-tools-bin 0.122ubuntu8.3+lp1631474 amd64 binaries used by initramfs-tools
ii initramfs-tools-core 0.122ubuntu8.3+lp1631474 all generic modular initramfs generator (core tools)
I tested with the PPA and it looks good in an initial test. Before, upgrading initramfs-tools and rebooting would result in AWS instance being unreachable. Now, it looks good!
$ cat /proc/cmdline cloudimg- rootfs ro console=hvc0 ip=dhcp tsc=reliable
root=LABEL=
$ dpkg -l|grep initramfs-tools 3+lp1631474 all generic modular initramfs generator (automation) 3+lp1631474 amd64 binaries used by initramfs-tools tools-core 0.122ubuntu8. 3+lp1631474 all generic modular initramfs generator (core tools)
ii initramfs-tools 0.122ubuntu8.
ii initramfs-tools-bin 0.122ubuntu8.
ii initramfs-