Comment 5 for bug 1303934

Upon further investigation, this is going to seem odd but I had two disks per VM (for Autopilot) of differing types (for testing) and the Deployed root disk was set to sdb, whereas sda was used for the initial Deploingt target (new/different bug?)(note: I renamed the nodes vs. above to avoid confusion for me but these are the same nodes as above):

Deploying:

overlayroot on / type overlayfs (rw,lowerdir=/media/root-ro/,upperdir=/media/root-rw/overlay)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
/dev/sdc on /media/root-ro type ext4 (ro)
tmpfs-root on /media/root-rw type tmpfs (rw,relatime)
none on /sys/fs/pstore type pstore (rw)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
/dev/sda1 on /tmp/tmpHpNIFU/target type ext4 (rw)
/dev on /tmp/tmpHpNIFU/target/dev type none (rw,bind)
/proc on /tmp/tmpHpNIFU/target/proc type none (rw,bind)
/sys on /tmp/tmpHpNIFU/target/sys type none (rw,bind)

Deployed:

/dev/sdb1 on / type ext4 (rw)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
none on /sys/fs/pstore type pstore (rw)
overflow on /tmp type tmpfs (rw,size=1048576,mode=1777)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)

So I'm unsure if the renaming fixed it and/or the disk reconfiguration (two identical SATA emulations) but now it works.