1995-10-04 13:29:14 -04:00
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[afio.2.4.1/README:]
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This is afio 2.4.1.
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1997-09-04 10:28:11 -04:00
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The current maintainer is Koen Holtman (koen@stack.nl).
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1995-10-04 13:29:14 -04:00
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--------------------------------------------------------------------------
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Afio makes cpio-format archives. It deals somewhat gracefully with
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input data corruption. Supports multi-volume archives during
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interactive operation. Afio can make compressed archives that are
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much safer than compressed tar or cpio archives. Afio is best used as
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an `archive engine' in a backup script.
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--------------------------------------------------------------------------
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See the file SCRIPTS for more information on backup scripts that use
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afio.
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See the file PORTING for information on compiling afio on non-Linux
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machines.
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---------------------------------------------------------------------------
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This afio version is based on a Linux port of afio 2.3. Since the
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original port, significant functionality has been added and some bugs
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were removed. While primarily intended for use under Linux, this code
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should be portable to other UNIX versions. As far as I know, there
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has been no afio development beyond 2.3 outside the Linux community.
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Thus, it should be safe to advertise ports of this code to other UNIX
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versions as ports of afio version 2.4.1.
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---------------------------------------------------------------------------
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Afio has far too many options and features (some of which are not even
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in the manual page). Anything in afio that doesn't relate to reading
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or writing an archive from/to a simple file or pipe or backing up and
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restoring from floppies remains untested.
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In particular, nobody has verified if the options -p -b -d -e -g -h
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-j -l -m -u and -R and the special case archive names `!command'
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and `system:file' really do what they claim to do.
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Typical `tested' afio uses are
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... | afio -o -v -f -b 1024 -s 1440x -F -Z /dev/fd0H1440
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... | afio -o -v -s 1440k -F -V -Z -G1 /dev/fd0H1440
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afio -oZvx /tmp/pipe1 </tmp/pipe2
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afio -i -Z -k -v -x -n /tmp/pipe1
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... | afio -s 512m -c 1024 -Z -T 20k -G 1 -E /backup/compressed -v -o \
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-L /backup/LOG -z /dev/tape 2>/dev/tty8 >/var/adm/backup
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WARNING1: The Linux floppy drivers below kernel version 1.1.54 do not
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allow afio to find out if a floppy write error has happened. If you
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are running a kernel below 1.1.54, afio will happily fail to backup to
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(say) a write protected disk and not report anything wrong! The only
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way to find out about write errors in this case is by watching the
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kernel messages, or by switching on the verify option.
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WARNING2: the code for -F (and -f and -K) is a complete mess. It will
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probably work in the normal case, but don't expect it to handle a
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write/verify error correctly. If you get such an error, best thing is
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to restart afio completely.
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---------------------------------------------------------------------------
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