tail command failing in ubuntu 12.04 lts

[Tom H]

On Fri, Oct 26, 2012 at 8:52 AM, Srinibas <ssrinibas at gmail.com> wrote:
>
> tail command only shows last few lines but not appending on the fly.
> I am trying to do "tail -f /var/log/syslog" . /var/log is mounted on
> overlayfs.
>
> I have tested it over the tmpfs and it works. I tried mounting /var/log
> to tmpfs but failed to do so.

I've never heard of overlayfs but if its data isn't persistent across
reboots, like tmpfs' data, then it shouldn't be used for "/var/log"
from a sysadmin perspective.