07-29-2009
There is no way of automatically rebuilding a file using lost+found.
If you know what you are doing you can rebuild a file using dd and similar utilities but you have to have intimate knowledge of the original file layout and contents including offsets of the orphaned sectors, etc.
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LEARN ABOUT CENTOS
git-lost-found
GIT-LOST-FOUND(1) Git Manual GIT-LOST-FOUND(1)
NAME
git-lost-found - Recover lost refs that luckily have not yet been pruned
SYNOPSIS
git lost-found
DESCRIPTION
NOTE: this command is deprecated. Use git-fsck(1) with the option --lost-found instead.
Finds dangling commits and tags from the object database, and creates refs to them in the .git/lost-found/ directory. Commits and tags that
dereference to commits are stored in .git/lost-found/commit, and other objects are stored in .git/lost-found/other.
OUTPUT
Prints to standard output the object names and one-line descriptions of any commits or tags found.
EXAMPLE
Suppose you run git tag -f and mistype the tag to overwrite. The ref to your tag is overwritten, but until you run git prune, the tag
itself is still there.
$ git lost-found
[1ef2b196d909eed523d4f3c9bf54b78cdd6843c6] GIT 0.99.9c
...
Also you can use gitk to browse how any tags found relate to each other.
$ gitk $(cd .git/lost-found/commit && echo ??*)
After making sure you know which the object is the tag you are looking for, you can reconnect it to your regular refs hierarchy by using
the update-ref command.
$ git cat-file -t 1ef2b196
tag
$ git cat-file tag 1ef2b196
object fa41bbce8e38c67a218415de6cfa510c7e50032a
type commit
tag v0.99.9c
tagger Junio C Hamano <junkio@cox.net> 1131059594 -0800
GIT 0.99.9c
This contains the following changes from the "master" branch, since
...
$ git update-ref refs/tags/not-lost-anymore 1ef2b196
$ git rev-parse not-lost-anymore
1ef2b196d909eed523d4f3c9bf54b78cdd6843c6
GIT
Part of the git(1) suite
Git 1.8.3.1 06/10/2014 GIT-LOST-FOUND(1)