[Lzip-bug] Lziprecover 1.22-pre1 released

[Antonio Diaz Diaz]

Lziprecover 1.22-pre1 is ready for testing here
http://download.savannah.gnu.org/releases/lzip/lziprecover/lziprecover-1.22-pre1.tar.lz
http://download.savannah.gnu.org/releases/lzip/lziprecover/lziprecover-1.22-pre1.tar.gz

The sha256sums are:
4e08cbd99e790f63c726681a5b4bf76477c0cc370db26cd3c02ba96bd7d10bc4 
lziprecover-1.22-pre1.tar.lz
d0b6bda435b3322a902d45936136676500860e10043f1ba4cb4fc1b2ce15a980 
lziprecover-1.22-pre1.tar.gz

This release introduces a new recovery method. Please, test it and 
report any bugs you find.

Lziprecover is a data recovery tool and decompressor for files in the 
lzip compressed data format (.lz). Lziprecover is able to repair 
slightly damaged files, produce a correct file by merging the good parts 
of two or more damaged copies, reproduce a zeroed sector using a 
reference file, extract data from damaged files, decompress files and 
test integrity of files.

Lziprecover can remove the damaged members from multimember files, for 
example multimember tar.lz archives.

Lziprecover provides random access to the data in multimember files; it 
only decompresses the members containing the desired data.

Lziprecover facilitates the management of metadata stored as trailing 
data in lzip files.

A nice feature of the lzip format is that a corrupt byte is easier to 
repair the nearer it is from the beginning of the file. Therefore, with 
the help of lziprecover, losing an entire archive just because of a 
corrupt byte near the beginning is a thing of the past.

If the cause of file corruption is damaged media, the combination GNU 
ddrescue[1] + lziprecover is the best option for recovering data from 
damaged lzip files.

The homepage is at http://www.nongnu.org/lzip/lziprecover.html


Changes in this version:

  * The option '-u, --reproduce', which can recover a zeroed sector in 
a lzip file, has been added. For it to work, two things are required: 
the same version of lzip that created the file, and a reference file 
containing the uncompressed data corresponding to the missing compressed 
data of the zeroed sector, plus some context data before and after them. 
(A zeroed sector may be caused by the incomplete recovery of a damaged 
storage device with I/O errors).

  * The options '--lzip-name' and '--reference-file', auxiliary to '-u, 
--reproduce', have been added.

  * Option aliases '--dump-tdata', '--remove-tdata' and 
'--strip-tdata', have been removed.

  * The new chapter 'Reproducing one sector' has been added to the manual.

  * Lzip 1.16 (or clzip 1.6) or newer is now required to run the tests.


[1] http://www.gnu.org/software/ddrescue/ddrescue.html


Regards,
Antonio Diaz, lziprecover author and maintainer.
Self-determination is a right, not a crime. Free Catalan political 
prisoners.
--
If you care about long-term archiving, please help me replace xz with 
lzip. See http://www.nongnu.org/lzip/lzip_benchmark.html#xz1
http://www.nongnu.org/lzip/manual/lzip_manual.html#Quality-assurance and
http://www.nongnu.org/lzip/xz_inadequate.html Thanks.