Re: [Duplicity-talk] Integrity check

[Jacob Godserv]

On Tue, Sep 15, 2009 at 03:46, László Monda <address@hidden> wrote:
> Hi List,
>
> How is it possible to do integrity check with duplicity on backed up
> content?  The verify action compares content, but it's not explicitly
> for integrity checks, right?
>
> Thanks in advance!

I always generate sha512sums after each backup, with something like
following script. This only runs in Linux environment.

--------------------
files=$(find -name 'duplicity*gpg')

for file in ${files}; do
        sha512_dir=$(dirname "${file}")"/.sha512sums/"
        if [[ ! -d "${sha512_dir}" ]]; then mkdir "${sha512_dir}" || exit 1; fi
        file_checksum="${sha512_dir}"$(basename "${file}")".sha512sum"

        if [[ ! -e "${file_checksum}" || ! -s "${file_checksum}" ]]; then
                echo "Generating checksum for ${file} and storing in
${file_checksum}..."
                sha512sum ${file} > "${file_checksum}"
        fi
done
--------------------

I can them check the sums by running the following command:
# sha512sum -c .sha512sums/*

Or I can check something specific like this:
# sha512sum -c .sha512sums/duplicity-full-signatures.DATETZ.sigtar.gpg.sha512sum

Something like that would verify that the backup data is intact.

-- 
    Jacob

    "For then there will be great distress, unequaled
    from the beginning of the world until now — and never
    to be equaled again. If those days had not been cut
    short, no one would survive, but for the sake of the
    elect those days will be shortened."

    Are you ready?