Bitcoind not starting 0.13.2 on Azure

My node on MS Azure has fallen over and won't start. It does the "verifying blocks" for a while, then nothing. I've checked disk space and seems to be heaps. debug.log is empty. Any ideas?

Code:

azureuser@xxx:~$ bitcoin-cli getinfo
error code: -28
error message:
Verifying blocks...
azureuser@bitcoinaa3:~$

Code:

azureuser@xxx:~$ sudo df
Filesystem     1K-blocks      Used Available Use% Mounted on
udev              837820         0    837820   0% /dev
tmpfs             171540     17848    153692  11% /run
/dev/sda1       29711408   5097308  24597716  18% /
tmpfs             857692         0    857692   0% /dev/shm
tmpfs               5120         0      5120   0% /run/lock
tmpfs             857692         0    857692   0% /sys/fs/cgroup
none                  64         0        64   0% /etc/network/interfaces.dynamic.d
/dev/sdc1      257898884 112919244 131872492  47% /media/blocks
tmpfs             171540         0    171540   0% /run/user/1000

azureuser@xx:~/.bitcoin/blocks$ cd ..
azureuser@xx:~/.bitcoin$ ls
banlist.dat bitcoin.conf blocks chainstate db.log fee_estimates.dat peers.dat wallet.dat
azureuser@xx:~/.bitcoin$ nano bitcoin.conf
azureuser@xx:~/.bitcoin$ cd blocks
azureuser@xx:~/.bitcoin/blocks$ ls
blk00000.dat index rev00000.dat