Option --sparse produces files filled with zeroes when source is on NFS (instead of real content).
see: https://bugzilla.proxmox.com/show_bug.cgi?id=462 The following script shows the bug: ------------------start test script------------------ #!/bin/sh set -e # Note: to reproduce the bug. make sure TESTDIR is on NFS TESTDIR=$(pwd)/testdir rm -rf ${TESTDIR} mkdir -p ${TESTDIR}/src mkdir -p ${TESTDIR}/dst echo "A SIMPLE TEST FILE" > ${TESTDIR}/src/file1 tar -C ${TESTDIR}/src --sparse -cpf ${TESTDIR}/sparse.tar . tar -C ${TESTDIR}/dst -xf ${TESTDIR}/sparse.tar # this fails, because dst/file1 is filled with 0 cmp ${TESTDIR}/src/file1 ${TESTDIR}/dst/file1 ------------------end test script------------------ This is releated to the pve kernel, because it works if I use the standard debian kernel. Any hints or ideas? _______________________________________________ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
