Fix „ERROR: This RRD was created on another architecture“ on Debian

rrd-32-to-64-bits.sh

debootstrap --arch=i386 --include=rrdtool stable /tmp/rrdtool-i386 &&
mount --bind /var /tmp/rrdtool-i386/var                            &&
find /var -mount -type f -name \*.rrd |
  while read rrd; do
    td=$(mktemp -d)
    linux32 chroot /tmp/rrdtool-i386 rrdtool dump "$rrd" > $td/xml &&
    rrdtool restore $td/xml $td/rrd                                &&
    cp $td/rrd "$rrd"
    rm $td/{xml,rrd}
    rmdir $td
  done

# © 2013-09-20 Daniel Albers <[email protected]>, GPL

@grguthrie Please note that this snippet is almost ten years old and things may have changed.

The script expects the .rrds to be below /var. If that's not the case for you, replace all occurrences of /var with the appropriate directory.

Thanks - I'll try again. A clever and useful approach!