On 04/22/2016 03:34 PM, Valeri Galtsev wrote:
On Thu, April 21, 2016 10:23 pm, John R Pierce wrote:
On 4/21/2016 7:49 PM, Chandran Manikandan wrote:
Finally fixed my issue.
As you told i have unmount the external hard disk then i checked the
/bkhdd/backup folder.
I saw that 190GB backup tar.gz file then i deleted and again remount it.
Thanks a lot for your kind supporting to me to fix this issue.
Why it's happened like this environment and how to avoid it.
don't write to mount points when they aren't mounted, the files get
written to the file system. and don't create any directories in the
mount point... like, if you were mounting /dev/sdb1 as /bkhdd then on
the root file ssytem (without that mount) there should never have been
any /bkhdd/backup directory. in fact /bkhdd should not be writable by
your user processes.
John, thanks for reminding this to all of us, I for one keep forgetting
about it (at least if I'm not dealing with it myself which usually acts as
a federal offense on me ;-) I know one Linux admin who removes write bit
from mount points.
I usually put a file with a name like "mount point for /dev/mdxyz" into
that mount point folder just in case I fail to mount it. Then when you
do a ls or ll it shows me I have a problem.
Valeri
I remember older Unix systems would refuse to mount a file system to a
non-empty directory, for exactly this reason, it hides stuff thats
already there.
--
john r pierce, recycling bits in santa cruz
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++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
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