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author | Lars Wendler <polynomial-c@gentoo.org> | 2013-10-21 13:44:12 +0000 |
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committer | Lars Wendler <polynomial-c@gentoo.org> | 2013-10-21 13:44:12 +0000 |
commit | 2170ae1c1ee3b26ddd4cb365978378ac1eb6b8a0 (patch) | |
tree | b521d09f20d63556c0a3aad70f7c9bdb6893e528 /app-arch/lziprecover/metadata.xml | |
parent | Initial commit (diff) | |
download | historical-2170ae1c1ee3b26ddd4cb365978378ac1eb6b8a0.tar.gz historical-2170ae1c1ee3b26ddd4cb365978378ac1eb6b8a0.tar.bz2 historical-2170ae1c1ee3b26ddd4cb365978378ac1eb6b8a0.zip |
Initial commit
Package-Manager: portage-2.2.7/cvs/Linux x86_64
Manifest-Sign-Key: 0x981CA6FC
Diffstat (limited to 'app-arch/lziprecover/metadata.xml')
-rw-r--r-- | app-arch/lziprecover/metadata.xml | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/app-arch/lziprecover/metadata.xml b/app-arch/lziprecover/metadata.xml new file mode 100644 index 000000000000..eb4dc77430b4 --- /dev/null +++ b/app-arch/lziprecover/metadata.xml @@ -0,0 +1,47 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> +<pkgmetadata> + <maintainer> + <email>polynomial-c@gentoo.org</email> + <name>Lars Wendler</name> + </maintainer> + <longdescription lang="en"> + Lziprecover is a data recovery tool and decompressor for files in the lzip + compressed data format (.lz), able to repair slightly damaged files, + recover badly damaged files from two or more copies, extract data from + damaged files, decompress files and test integrity of files. + The lzip file format is designed for long-term data archiving. It is clean, + provides very safe 4 factor integrity checking, and is backed by the + recovery capabilities of lziprecover. + Lziprecover is able to recover or decompress files produced by any of the + compressors in the lzip family; lzip, plzip, minilzip/lzlib, clzip and + pdlzip. + Lziprecover makes lzip files resistant to bit-flip (one of the most common + forms of data corruption), and can safely merge multiple damaged backup + copies. + If the cause of file corruption is damaged media, the combination GNU + ddrescue + lziprecover is the best option for recovering data from multiple + damaged copies. + If a file is too damaged for lziprecover to repair it, all the recoverable + data in all members of the file can be extracted with the '-D' option. + Lziprecover is able to efficiently extract a range of bytes from a + multi-member file, because it only decompresses the members containing the + desired data. + Lziprecover can print correct total file sizes and ratios even for + multi-member files. + When recovering data, lziprecover takes as arguments the names of the + damaged files and writes zero or more recovered files depending on the + operation selected and whether the recovery succeeded or not. The damaged + files themselves are never modified. + When decompressing or testing file integrity, lziprecover behaves like lzip + or lunzip. + To give you an idea of its possibilities, when merging two copies, each of + them with one damaged area affecting 1 percent of the copy, the probability + of obtaining a correct file is about 98 percent. With three such copies the + probability rises to 99.97 percent. For large files (a few MB) with small + errors (one sector damaged per copy), the probability approaches 100 percent + even with only two copies. + Lziprecover is not a replacement for regular backups, but a last line of + defense for the case where the backups are also damaged. + </longdescription> +</pkgmetadata> |