Backup Central

Hello-

I've been backing up a directory using the command:

/usr/bin/rdiff-backup --print-statistics /mnt/server5b_e$/Users/Common/IRM_Common /raid5/backup/server5b/IRM_Users


I'm attempting to recover a subdirectory using the command:

rdiff-backup -r 4D --force /raid5/backup/server5b/IRM_Users/MHowarth/ /raid5/backup/mel

I get an error message similiar to the following:

Hash for Docs/WAN Policy 10.2.doc missing, cannot check

A Google search has unearthed where the error message in the code is originating from but I haven't been able to find out what the message means and what (if anything) I can do to recover the data.

I'm using rdiff-backup 1.1.5

Thank you.

Jim

"Jim St.Cyr" <jim.stcyr < at > gmail.com>
wrote the following on Wed, 25 Jan 2006 12:53:43 -0500

I get an error message similiar to the following:

Hash for Docs/WAN Policy 10.2.doc missing, cannot check

A Google search has unearthed where the error message in the code is
originating from but I haven't been able to find out what the message means
and what (if anything) I can do to recover the data.

I'm using rdiff-backup 1.1.5

By default, recent devel versions of rdiff-backup store SHA1 hashes of
all regular files, and it checks them when restoring. Probably the
backup you are restoring was made by an earlier version of rdiff-backup,
which didn't write any hashes.


--
Ben Escoto

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Ben Escoto wrote:
"Jim St.Cyr" <jim.stcyr < at > gmail.com>
wrote the following on Wed, 25 Jan 2006 12:53:43 -0500
I get an error message similiar to the following:

Hash for Docs/WAN Policy 10.2.doc missing, cannot check

A Google search has unearthed where the error message in the code is
originating from but I haven't been able to find out what the message means
and what (if anything) I can do to recover the data.

I'm using rdiff-backup 1.1.5

By default, recent devel versions of rdiff-backup store SHA1 hashes of
all regular files, and it checks them when restoring. Probably the
backup you are restoring was made by an earlier version of rdiff-backup,
which didn't write any hashes.


Ben-

Thanks for the reply.

I've been using the 1.1.5 version for a while now. Is there any way to
start writing the hashes or to verify that they are being written at
all? More important, am I stuck or should I downrev to an earlier version?

Jim
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"Jim St.Cyr" <jim.stcyr < at > gmail.com>
wrote the following on Sun, 29 Jan 2006 19:56:38 -0500

I've been using the 1.1.5 version for a while now. Is there any way to
start writing the hashes or to verify that they are being written at
all? More important, am I stuck or should I downrev to an earlier version?

You can zcat your mirror_metadata file and look for hashes. There's no
reason to downgrade. rdiff-backup will only read a file during a backup
session if it has changed. If a file hasn't changed since you upgraded
to 1.1.1 or later, then there still won't be a hash for that file
available.


--
Ben Escoto

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Ben Escoto wrote:
"Jim St.Cyr" <jim.stcyr < at > gmail.com>
wrote the following on Sun, 29 Jan 2006 19:56:38 -0500
I've been using the 1.1.5 version for a while now. Is there any way to
start writing the hashes or to verify that they are being written at
all? More important, am I stuck or should I downrev to an earlier version?

You can zcat your mirror_metadata file and look for hashes. There's no
reason to downgrade. rdiff-backup will only read a file during a backup
session if it has changed. If a file hasn't changed since you upgraded
to 1.1.1 or later, then there still won't be a hash for that file
available.



Ben-

I must have had some serious brain cramps. It dawned on me that the
messages are informational; not indicative of a recovery failure. When
I looked in the recovery directory this morning there they were, all the
files recovered back to the 21st.

Off to find a crow sandwich....

Thanks again.

Jim
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