Lots of people has sent me mails wondering how to get hold of salvage.
Well, as far as I know it's not to be found anywere on the net. I got my
copy from Digital Support.
Before overwelming me with more mails please read what Dr. Tom Blinn
has to say first.
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It will be included in the base system in DIGITAL UNIX V4.0D; in the
meantime, there is a kit for V4.0B that's available through Services,
but as far as I know, it's not on any externally accessible Web site
or FTP server. I don't know if a version is available for versions of
DIGITAL UNIX prior to V4.0B. It might be possible to make the "salvage"
kits for earlier versions available; I'll bring this to the attention of
the AdvFS file systems product manager and the appropriate engineers.
"salvage" is just one of the goodies that makes updating to V4.0D a win.
Here's some of the information from the reference page for salvage:
DESCRIPTION
The salvage utility helps you recover file data after an AdvFS file domain
has become unmountable due to some type of data corruption. Errors that
could cause data corruption of a file domain include I/O errors in file
system metadata, the accidental removal of a volume, or any I/O error that
produces a panic.
Use the salvage utility as a last resort. You should first repair domain
structures by using the verify utility. If that repair method is unsatis-
factory, attempt to recover fileset data from backup media. Only if both
methods are unsatisfactory should you employ the salvage utility.
Space Needed By salvage
As the utility recovers files, it writes temporary files to a subdirectory
of the recovery directory, and uses these files to process the on-disk
structures it is reading. The utility deletes these temporary files when
it exits.
NOTES
The salvage utility opens and reads block devices directly and could
present a security issue if it recovers data remaining from previous AdvFS
file domains while attempting to recover data from current AdvFS file
domains.
The salvage utility can be run in single-user mode, without mounting other
file systems. The salvage utility is available from the UNIX Shell option
when you are booting from the Digital UNIX Operating System Volume 1 CD-
ROM.
RESTRICTIONS
You must be the root user to use the salvage utility.
Before using the salvage utility, all filesets in the domain you are trying
to recover probably have been already unmounted. However, use the
umount(8) command to ensure that the filesets are unmounted. If all
filesets are not unmounted, the utility displays an error message exits
with an exit value of 2.
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Dr. Tom Blinn mentions a 'might be' v3.2 version. In the kit I received from
Digital, v3.2 and v4.0 version were included. Since I'm running v4.0
I haven't tested the v3.2 version so...
Also from Dr. Tom Blinn
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By the way, V4.0D is now shipping in the U.S. and perhaps world-wide, it's
not a "wait a long time and you can get this" proposition.
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And from Dr Marco Luchini <m.luchini_at_ic.ac.uk> came the flollowing
information (once we're into salvage and rescue)
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I have a kit called "recover" written by Allan Rollow from DEC which
works on UFS and it has been a godsend on many occasion.
You can get it from gatekeeper.dec.com:/pub/sysadm/recover.tar.Z,
just in case.
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I haven't downloaded or tested recover yet so... I'll leave it up to you.
That should cover everything,
//Fredrik
==========================================================
Fredrik Palm Email: frpa01_at_handelsbanken.se
Svenska Handelsbanken Phone: +46-8-7011789
CDCT Fax: +46-8-7013145
106 70 Stockholm
Sweden
Received on Mon Jan 19 1998 - 16:23:37 NZDT