Can you try waiting 7 minutes again, and check that both the kernel versions before and after are the same with:
$ uname -r
if you've been following updates and downloaded a kernel beforehand then it will fail on restart as the version has changed.
BTW, the fact that it does power off is good news (in a sort of way! :-). It means that it does at least think that it's finishing.
The 'free -m' also shows you have plenty of swap space (which could be the reason that it comes back immediately and fails to start hibernating) - if you see that happen again, do:
$ cat /proc/swaps
which will show you which swap partitions are active and in use.
Can you try waiting 7 minutes again, and check that both the kernel versions before and after are the same with:
$ uname -r
if you've been following updates and downloaded a kernel beforehand then it will fail on restart as the version has changed.
BTW, the fact that it does power off is good news (in a sort of way! :-). It means that it does at least think that it's finishing.
The 'free -m' also shows you have plenty of swap space (which could be the reason that it comes back immediately and fails to start hibernating) - if you see that happen again, do:
$ cat /proc/swaps
which will show you which swap partitions are active and in use.