View Full Version : Clone and then copy to a second external drive ??
brantwinter
05-28-2008, 07:30 AM
Hi - I have been a happy SD using for a few years now, but I think I must be getting more and more paranoid !
I currently run a full bootable backup to an external USB drive and would like to then copy this to my NAS disk.
I have tried rsync ( manually ) after a SD copy has completed and I am met by all sorst of errors as rsync tries to copy the files across. I have tried runnign my rsync script with sudo but no luck. The errors are strange I/O type errors after rsync has copied about 50Gb of the data.
Does anyone else make a second full copy of theor SD backup after completion, if so how ?
Thanks in advance.
dnanian
05-28-2008, 07:58 AM
Just schedule a second copy, either of the first or of the source...
brantwinter
05-28-2008, 08:41 AM
Thanks for the reply. I did think of that, but I htought that maybe there was another way of doing it with a clever little rsync script. I had updated my 10.5.2 rsync version from the instructions at teh Bombich site and have made a script:
#!/bin/bash
# USER=$1 #Don't need this at present
#echo "Backing up ${USER}"
# backup volume
VOLUME='/Volumes/LACIE_160'
SRC='/Volumes/LACIE_160/Users/brantwinter'
DEST='/Volumes/nasdata/Mirrors/LACIE_160/'
# Get device using 'diskutil info ${VOLUME}'
#DEVICE='/dev/disk1s2'
BDISK=`/usr/sbin/diskutil list | awk '$3=="LACIE_160" {print $6}'`
if [ ! -e ${VOLUME} ]
then
echo "Mounting ${DEVICE} as ${VOLUME}"
/usr/sbin/diskutil mount $BDISK > /dev/null
else
echo "${VOLUME} already mounted"
fi
echo "Backing up ${SRC} to ${DEST}"
sudo rsync -aNHAXx --protect-args --fileflags --force-change --delete --timeout=120 ${SRC} ${DEST}
echo "Unmounting ${VOLUME}"
sleep 5
/usr/sbin/diskutil unmount $BDISK > /dev/null
One of the reasons for doing it this way was to just make a second copy of my profile rather than the whole disk if you know what I mean....
I am not sure if rsync is falling over on the permissions or what ? I think I may have read somewhere, for this type of thing to work I need to allow rsync to run as root, or say create a UNIX user called backup and allow the backup user to execute this rsync script as root. I have no idea how to do this though...Any ideas ?
dnanian
05-28-2008, 08:47 AM
So, just run SD!'s "Backup - user files".
brantwinter
05-28-2008, 08:50 AM
I suppose I just wanted to use some mac UNIX geekery to achieve the same thing :(
dnanian
05-28-2008, 09:00 AM
Yeah, I know... but why? :)
brantwinter
05-28-2008, 09:01 AM
Sorry - One more thing.
If I backup just the user files using SD to a sparesimage on the second drive, is there any way to shrink it down every now and again. I used to back up to spareimage files and the size of the files just kept growing even though I had removed large files from my profile.
brantwinter
05-28-2008, 09:01 AM
I dont know - I was bored :)
brantwinter
05-28-2008, 09:23 AM
Maybe I can just add another line to an after run script like:
hdiutil compact /path/to/.sparseimage
dnanian
05-28-2008, 09:28 AM
You'd have to compact in a background process. e.g.
nohup /bin/bash -c "sleep 30; hdiutil compact image-path-or-variable" &
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