Add -P arguments for dump(8) and restore(8) which allow the user to
use backup methods other than files and tapes. The -P argument is
a normal sh(1) pipeline with either $DUMP_VOLUME or $RESTORE_VOL

Add -P arguments for dump(8) and restore(8) which allow the user to
use backup methods other than files and tapes. The -P argument is
a normal sh(1) pipeline with either $DUMP_VOLUME or $RESTORE_VOLUME
defined in the environment, respectively.

For example, I can back up my home to three DVD+R[W]s as so:
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/ad0s2e 40028550 10093140 26733126 27% /home
green# dump -0 -L -C16 -B4589840 -P 'growisofs -Z /dev/cd0=/dev/fd/0' /home

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Improve the warnings for dump -L and do not bother doing the snapshot if
it is specified for read-only filesystems.

Submitted by: Jason Young <jyoung8607@hotmail.com>
PR: 46672

Remove advertising clause from University of California Regent's license,
per letter dated July 22, 1999.

Approved by: core, imp

Add RSH to the list of enviroment variables.

Document that the live dump command (`dump -L') creates its snapshot
in the .snap directory in the root of the filesystem being dumped.
Document that if the .snap directory is missing that it must be

Document that the live dump command (`dump -L') creates its snapshot
in the .snap directory in the root of the filesystem being dumped.
Document that if the .snap directory is missing that it must be
created manually and that it should be owned by user root and
group operator and set to mode 770 before a live dump can be run.

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- add explanation of what an active file system is
- explain the reason for permitting 32 read errors for a dump

PR: docs/35602 and docs/35607
Reviewed by: jhb
Approved by: blackend (mentor)

Remove reference to max block size. dump no longer limits the block size.

Add section number to .Xr

Removed all vestiges of KerberosIV.

De-Kerberise (KerberosIV). KerberosIV is no longer present, and
remote backups can still be done with Kerberos authentication using
SSH and Kerberos 5.

Sort options.

Add a caching option to dump. Use -C. Note that NetBSD has a caching option
called -r but it takes 512 byte blocks instead of megabytes, and I felt a
megabytes specification would be far more usefu

Add a caching option to dump. Use -C. Note that NetBSD has a caching option
called -r but it takes 512 byte blocks instead of megabytes, and I felt a
megabytes specification would be far more useful so I did not use the same
option character.

This will *greatly* improve dump performance at the cost of possibly
missing filesystem changes that occur between passes, and does a fairly
good job making up for the loss of buffered block devices. Caching is disabled
by default to retain historical behavior.

In tests, dump performance improved by about 40% when dumping / or /usr.

Beware that dump forks and the cache may wind up being larger then you
specify, but a more complex shared memory implementation would not produce
results that are all that much better so I kept it simple for now.

MFC after: 3 days

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Add TAPE to the ENVIRONMENT section and standardize the section, using a
list instead of prose.

MFC after: 1 month

Fixed the abuses of .Ql visible on stderr in troff mode.

PR: docs/37176

Uniformly refer to a file system as "file system".

Approved by: re

Add the `L' option to dump to notify it that it is dumping a
live filesystem. To obtain a consistent dump image, dump takes
a snapshot of the filesystem and then does a dump of the snapshot.
The snap

Add the `L' option to dump to notify it that it is dumping a
live filesystem. To obtain a consistent dump image, dump takes
a snapshot of the filesystem and then does a dump of the snapshot.
The snapshot is removed when the dump is complete.

Also add an operator warning that the `L' option should be used
if dump is run on a live filesystem without the `L' option being
specified. The alternative would be to silently use a snapshot
any time that a live filesystem is dumped, but this change in
dump semantics seemed too drastic at this time.

Sponsored by: DARPA & NAI Labs.
Approved by: re

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Fix some 'SYNOPSIS' and 'usage' messages.

Fix Synopsis

s/filesystem/file system/g as discussed on -developers

The .Nm utility

mdoc(7) police: nits.

dump(8)'s manual page is confusing in its use of records, blocks,
blocksizes, etc
does not give the default of -b
only mentiones rdump in the NAME section
uses both filesystem and file system in simi

dump(8)'s manual page is confusing in its use of records, blocks,
blocksizes, etc
does not give the default of -b
only mentiones rdump in the NAME section
uses both filesystem and file system in similar contexts

PR: 34248
Submitted by: Gary W. Swearingen <swear@blarg.net>
MFC after: 3 days

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mdoc(7) police: tiny fixes.

Add a new "-S" flag to dump to allow it just print out dump estimate
size and then exit.

PR: bin/35450
Submitted by: Mark Hannon <markhannon@optushome.com.au>
Obtained from: NetBSD
MFC after: 1 week

On receipt of a SIGINFO, schedule an immediate printout of the
percentage complete and remaining time estimate.

PR: bin/32138
Submitted by: mi