Linux Filesystem Hierarchy

1.10. /lost+found
As was explained earlier during the overview of the FSSTND, Linux should always go through a proper
shutdown. Sometimes your system might crash or a power failure might take the machine down. Either way,
at the next boot, a lengthy filesystem check (the speed of this check is dependent on the type of filesystem that
you actually use. ie. ext3 is faster than ext2 because it is a journalled filesystem) using fsck will be done. Fsck
will go through the system and try to recover any corrupt files that it finds. The result of this recovery
operation will be placed in this directory. The files recovered are not likely to be complete or make much
sense but there always is a chance that something worthwhile is recovered. Each partition has its own
lost+found directory. If you find files in there, try to move them back to their original location. If you find
something like a broken symbolic link to 'file', you have to reinstall the file/s from the corresponding RPM,
Linux Filesystem Hierarchy
Chapter 1. Linux Filesystem Hierarchy
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since your file system got damaged so badly that the files were mutilated beyond recognition. Below is an
example of a /lost+found directory. As you can see, the vast majority of files contained here are in actual fact
sockets. As for the rest of the other files they were found to be damaged system files and personal files. These
files were not able to be recovered.
      total 368
      −rw−r−−r−− 1 root root 110891 Oct 5 14:14 #388200
      −rw−r−−r−− 1 root root 215 Oct 5 14:14 #388201
      −rw−r−−r−− 1 root root 110303 Oct 6 23:09 #388813
      −rw−r−−r−− 1 root root 141 Oct 6 23:09 #388814
      −rw−r−−r−− 1 root root 110604 Oct 6 23:09 #388815a
      −rw−r−−r−− 1 root root 194 Oct 6 23:09 #388816
      srwxr−xr−x 1 root root 0 Oct 6 13:00 #51430
      srwxr−xr−x 1 root root 0 Oct 6 00:23 #51433
      −rw−−−−−−− 1 root root 63 Oct 6 00:23 #51434
      srwxr−xr−x 1 root root 0 Oct 6 13:00 #51436
      srwxrwxrwx 1 root root 0 Oct 6 00:23 #51437
      srwx−−−−−− 1 root root 0 Oct 6 00:23 #51438
      −rw−−−−−−− 1 root root 63 Oct 6 13:00 #51439
      srwxrwxrwx 1 root root 0 Oct 6 13:00 #51440
      srwx−−−−−− 1 root root 0 Oct 6 13:00 #51442
      −rw−−−−−−− 1 root root 63 Oct 6 23:09 #51443
      srwx−−−−−− 1 root root 0 Oct 6 10:40 #51445
      srwxrwxrwx 1 root root 0 Oct 6 23:09 #51446
      srwx−−−−−− 1 root root 0 Oct 6 23:09 #51448