On Wed, October 25, 2017 21:48, John Jason Jordan wrote:
> On Wed, 25 Oct 2017 15:42:37 -0700
> Dale Snell <ddsn...@frontier.com> dijo:
>
>>Ah, okay. You'll have to unplug the Synology in order to find
>>those movies. They're in whatever filesystem the Synology mounts
>>in. Say you have a directory "/mnt/storage/". If you do an
>>"ls /mnt/storage", nothing will show up. When you mount your new
>>filesystem (say, the Synology) on /mnt/storage, doing the
>>"ls /mnt/storage" will report whatever is in the new filesystem.
>>If you create files in /mnt/storage/ _before_ mounting the
>>Synology, and _then_ mount the Synology, you won't see those
>>files, just the Synology's.
>
> Free space: 57.9 GB of 82.4 GB (29% used)
>
> Hallelujah!!
>
> Now that things are back to normal I want to work on making sure that
> this never happens again.
>
>>One thing I learned to do in a previous life, when I helped
>>administer a Sun III, was to mark unmounted filesystems. Use
>>mkdir as usual to create the mountpoint directory (mkdir blorfl),
>>then immediately do a "touch blorfl/not_mounted". When you do
>>a directory listing of blorfl, it should show "not_mounted" only.
>>If there are other files there, you've got a problem.
>
> The 'not mounted' file is a good idea. There is a
> folder /media/jjj/Synology and that is where the Synology is mounted.
>>From fstab:
>
> 192.168.1.115:/volume1/Synology /media/jjj/Synology nfs
> auto,user 0 0
> #it took me a long time to get that fstab line right
>
> And here is the rsync command:
>
> rsync -rptog --progress --stats --delete
> --exclude-from=/media/jjj/Movies/rsync_exclusions
> /media/jjj/Movies/
> /media/jjj/Synology
>
> It seems to me that maybe a simple way to make sure this never happens
> again is to modify the rsync command so that if the Synology is not
> mounted the command aborts. Even better, if it aborts it should send me
> a message so I know that things are amiss. Wait ... a pop-up with
> gxmessage would be better. OK, this sounds like I need a script instead
> of just a raw command.
>
> if <synology not mounted> then gxmessage "Movies backup failed"
> else rsync -rptog ... etc.
>
Something along the lines of:
#! /bin/bash
#
grep -i synology /etc/mtab
if [ $? -ne 0 ]; then
gxmessage "Movies backup failed"
else
rsync -rptog --progress --stats --delete
--exclude-from=/media/jjj/Movies/rsync_exclusions /media/jjj/Movies/
/media/jjj/Synology
fi
(I'm using -i on the grep command to make it a case insensitive match)
Please watch wrapping in there....
> I can do really, really simple bash scripts but I don't know how to do
> <synology not mounted>. Also unsure about bash syntax for if-then-else.
> Oh, and gxmessage is installed, as I use it to pop up a list of Unicode
> values for characters in IPA.
>
> Thanks a major bunch to you and everyone else who helped. Next time we
> meet I owe you a beer! Several beers!
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