voldump - Dump an AFS volume without using the Volume Server
< volume id
dumps an AFS volume in the format used by vos dump
using the Volume Server. It must be run on the file server machine and usually
must be run as the superuser "root" to have permissions to read the
file server data. It's primary use is to recover data from a file server
machine where the Volume Server cannot be started for some reason.
The dump output will go to standard output, or to a file if -file
specified. vos restore
can be used to load the resulting dump into a
new AFS volume. voldump
always does a full dump.
Normally, use vos dump
instead of this command. voldump
is a tool
of last resort to try to extract data from the raw data structures stored on
the file server machine and is not as regularly tested or used as the normal
If the AFS volume being dumped changes while voldump
is running, the
results may be inconsistent. If the File Server and Volume Server are running,
stop them with bos shutdown
or a similar method before running this
- -part <partition>
- Names the partition on which the volume to be dumped is
located. voldump does not take the normal full range of ways of
specifying a partition. Instead, partition must be either a single
letter between "a" and "z", corresponding to
/vicepa through /vicepz, or the full path to the file server
partition. "aa" is not recognized; use /vicepaa
- -volumeid <volume id>
- Specifies the ID of the volume to dump. The volume must be
specified by numeric ID, not by name.
- -file <dump file>
- Specifies the output file for the dump. If this option is
not given, the volume will be dumped to standard output.
- Asks for a verbose trace of the dump process. This trace
information will be sent to standard error.
The following command dumps the volume 1936964939 on the /vicepb
partition to the file /tmp/volume.dump
% voldump -part /vicepb -volumeid 1936964939 -file /tmp/volume.dump
The issuer must have read access to the file server data stored in the specified
partition. Usually, this means that the issuer must be the local superuser
"root" on the file server machine.
Copyright 2005 Russ Allbery <firstname.lastname@example.org>
This documentation is covered by the IBM Public License Version 1.0. This man
page was written by Russ Allbery for OpenAFS.