This is the command restorevol that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
restorevol - Restore a volume from vos dump to the local file system
SYNOPSIS
restorevol [-file <dump file>] [-dir <restore dir> ]
[-extension <name extension>]
[-mountpoint <mount point root>]
[-umask <mode mask>] [-verbose] [-help]
DESCRIPTION
restorevol takes an AFS volume in the format produced by vos dump and restores it to the
local file system. Normally, the contents of a volume are maintained by the AFS File
Server in an opaque format and copying a volume's raw data does not make it easily
accessible. This utility will produce a directory tree that is equivalent to that seen
via an AFS client, but without preserving the AFS-specific Access Control Lists (ACLs).
It's primary use is to recover data from a volume dump or backup and make it available via
a filesystem other than AFS.
The dump output will read from standard input, or from a file if -file is specified.
The restore process is as follows:
1. The dump file will be restored within the current directory or that specified with
-dir.
2. Within this directory, a subdir is created. It's name is the RW volume name that was
dumped. An extension can be appended to this directory name with -extension.
3. All mountpoints will appear as symbolic links to the volume name. The path name to
the volume will be either that in -mountpoint, or -dir. Symbolic links remain
untouched.
4. You can change your umask during the restore with -umask. Otherwise, restorevol uses
your current umask. Mode bits for directories are 0777 (then AND'ed with the umask).
Mode bits for files are the owner mode bits duplicated accross group and user (then
AND'ed with the umask).
5. For restores of full dumps, if a directory says it has a file and the file is not
found, then a symbolic link AFSFile-<#> will appear in that restored tree. Restores
of incremental dumps remove all these files at the end (expensive because it is a tree
search).
6. If a file or directory was found in the dump but found not to be connected to the
hierarchical tree, then the file or directory will be connected at the root of the
tree as __ORPHANEDIR__.<#> or __ORPHANFILE__.<#>.
7. ACLs are not restored.
CAUTIONS
Normally, use vos_restore(1) instead of this command. restorevol is a tool of last resort
to try to extract data from the data structures stored in a volume dumpfile and is not as
regularly tested or used as the normal vos_restore(1) implementation. Using restorevol
bypasses checks done by the fileserver(8) and salvager(8).
OPTIONS
-file <dump file>
Specifies the volume dump file to be read and restored to the local filesystem. If
this option is not given, the volume dump will be read from standard input.
-dir <restore dir>
Names the directory in which to create the restored filesystem. The current directory
is used by default. Note that any mountpoints inside the volume will point to the
same directory unless the -mountpoint option is also specified.
-extension <name extension>
By default, the name of the directory created matches the RW volume name of the volume
in the dump file. If this option is used, the directory name will be the RW volume
name name extension as the suffix.
-mountpoint <mount point root>
By default, mountpoints inside the volume being restored point to the value given by
-dir. This option allows mountpoints to be resolved relative to another path. A
common use for this would be to specify a path under /afs as the mount point root so
that mountpoints inside the restored volume would be resolved via AFS.
The mount point root must exist, and the process running the command have read access
to that directory, or the command will fail.
EXAMPLES
The following command restores the contents of the dumpfile in sample.dump to the
directory /tmp/sample.2009-05-17, but having all mountpoints inside the volume point to
AFS (note that this requires knowledge of where sample is mounted in AFS):
% restorevol -file sample.dump -dir /tmp -extension .2009-05-17 \
-mountpoint /afs/example.org/sample
Restoring volume dump of 'sample' to directory '/tmp/sample.2009-05-17'
PRIVILEGE REQUIRED
The issuer must have read access to the dump file and write access to the directory into
which the dump is restored. If the -mountpoint flag is given, the issuer must also have
read access to that directory.
Use restorevol online using onworks.net services
