Using Arch Wiki rsync back up script - Error Code 3

Question

Hi Guys,
I've searched around these forums and the web for people with similar problems without getting a solution.
I took the script provided in this wiki page and directly created a file named arch_backup.sh in my bin directory.
Then I run it in the following manner:
Infernus:discourse(master!*) $ sudo ~/bin/arch_backup.sh /media/Backup/Arch
sending incremental file list
file has vanished: "/proc/10/exe"
file has vanished: "/proc/10/task/10/exe"
ERROR: destination must be a directory when copying more than 1 file
rsync error: errors selecting input/output files, dirs (code 3) at main.c(622) [Receiver=3.1.0]
total time: 0 minutes, 0 seconds
Infernus:discourse(master!*) $
Here are the relevant parts of my mount -l command:
/dev/sdd1 on /media/Backup type ext4 (rw,nosuid,nodev,noexec,relatime,data=ordered)
I get the same error when I run the provided rsync command directly:
rsync -aAXv /* /media/Backup/Arch --exclude /dev/* --exclude /proc/* --exclude /sys/* --exclude /tmp/* --exclude /run/* --exclude /mnt/* --exclude /media/* --exclude /lost+found --exclude /var/lib/pacman/sync/*
I keep getting the same error message over and over again. The destination is a directory and is writable, otherwise the provided backup script would exit with an error message.
Any help?
Last edited by Balaji Sivaraman (2013-12-01 18:05:24)

Answer 1

jasonwryan: I had a go at re-writing the first section to avoid parsing ls output - and that was not too difficult - so the start of the script then becomes:
#!/bin/bash
# Back up stuff to backup disc
USE_AUTO_FS=0
if [ -z "$1" ]; then
USBNAME=/run/media/$USER
DIRCOUNT=$(find $USBNAME/* -maxdepth 0 -type d | wc -l)
if [ "$DIRCOUNT" -gt "1" ]
then echo Found $DIRCOUNT directories in $USBNAME;
echo rerun choosing a specific backup drive as parameter
echo quitting
exit
fi
DIRCOUNT=0
for full_path in "$USBNAME"/*/; do
if ! [ -d "$full_path" ]; then continue; fi
EXT_DRIVE=${full_path#"$USBNAME/"}
EXT_DRIVE=${EXT_DRIVE%/}
DIRCOUNT=$(($DIRCOUNT + 1))
if [ "$DIRCOUNT" -gt "1" ]
then echo Found $DIRCOUNT directories in $USBNAME;
echo rerun choosing a specific backup drive as parameter
echo quitting
exit
fi
echo "$EXT_DRIVE"
done
echo Mounted EXT_DRIVE is $EXT_DRIVE
else
EXT_DRIVE=$1
fi
This is overkill on the check for more than one mounted drive - I know!
However when I looked at using a single rsync command instead of a set in a loop - this is certainly possible but I wanted to have the script output when it started each of the top directories and not progress for every file in the recursive tree - and I could not find a solution for that.  I could get a "total" progress indicator using the new --info=progress2  flag that was implemented in version 3.1.0 of the rsync command but that was not what I wanted. Having a single progress line for each item in the list variable was not something I could find. If it is possible I would love to know how?
Anyway the code for doing this is:
list=( '/etc' '/var' '/boot' '/root' '/opt')
echo Directories to be backed up are ${list[@]}
ToDir="$BAKDIR/$ME_HOST"
TIMER=$(date)
TIMER1=$(date +%s)
echo Started at $TIMER
rsync --info=progress2 --delete -aH --exclude 'lost+found' --exclude '/var/cache/*' "${list[@]}" $ToDir
TIMER=$(date)
TIMER2=$(date +%s)
echo Finished at $TIMER
TDIFF=$((TIMER2-TIMER1))
TDIFFM=$((TDIFF/60))
TDIFFR=$((TDIFF%60))
echo
echo Process time elapsed is $TDIFF seconds = $TDIFFM min $TDIFFR sec
Anyway this seems at least to work whichever option one chooses.  Also the z compression flag is not necessarily faster - for a lot of small files over a gigabit link can be slower so I guess it depends on the details of how the backup is being executed.
Last edited by mcloaked (2013-12-02 21:23:36)