Re: NFS second disk -
On 06/15/2018 02:14 PM, Bob Goodwin wrote:
On 06/14/18 17:23, Bob Goodwin wrote:
>> There's always more than one way to do it.
> +
> Yes, and you have probably provided what I was looking for, I'll try
> exporting it as you suggest, probably tomorrow and report back.
+
I've got this working except
# rsync -avr /home/exports/ /mnt/test/backups/
produces copies of directories devoid of files.
It looks like I have to do:
# rsync -avr /home/exports/* /mnt/test/backups/
The -r is supposed to get everything recursively but but it did not get
the files without the "*" ...
The "-r" is redundant, as "-a" is equivalent to "-rlptgoD"
With your help I had enough confidence to experiment with the NFS
exports and the backup disk appears to be working as I wanted. /dev/sdb1
appears to have a complete copy of the data stored on /dev/sdb1 for a
backup. And I can access it from an Fedora 27 workstation.
I am still wondering why rsync did not copy everything recursively
without the asterisk?
Without the "*", rsync is going to be governed by its pattern rules as
shown in rsync's man page section "INCLUDE/EXCLUDE PATTERN RULES". Even
though it may get confusing, pay extra attention to the notes about the
"-r" flag in that section.
The main idea is that you anchored the source to /home/exports, and as
rsync walks down the tree, the subdirectories don't start at
/home/exports (they're children of it) and the files in them are
excluded. It'll create the directories on the target since the directory
names themselves are in /home/exports, but not their content.
When you put in the "*", the shell expanded the list of directories in
/home/exports and passed all of them to rsync. So if you had:
/home/exports/a
/home/exports/b
The command the shell actually invoked was
rsync -avr /home/exports/a /home/exports/b /mnt/test/backups
(note that the last element on the command line is the destination to
rsync...everything else is a source).
The cheap and dirty fix is:
rsync -av /home/exports --include="exports/***" /mnt/test/backups
or
cd /home/exports
rsync -av /mnt/test/backups
The first one utilizes rsync's include pattern matching rules. The
argument to "--include=" is in quotes so the shell doesn't expand the
"*"s in it.
Also note that the trailing "/" on the destination as you had it is
unnecessary but shouldn't hurt anything.
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- Rick Stevens, Systems Engineer, AllDigital ricks(a)alldigital.com -
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