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Operating Systems SCO Backup/RAID of HD on Old UNIX Server Post 302956567 by hicksd8 on Thursday 1st of October 2015 06:36:00 AM
Old 10-01-2015
Okay, I get the picture.

Do you have the install media for this O/S?

Does the machine have a floppy drive (that works)?
If so, you can make what is known as a "root & boot" set which will facilitate you getting the machine back on its feet if you have a full tape backup.

To create the "root & boot" floppies login as root and run:

Code:
# mkdev fd

which will give you a menu driven interface. Select the options to write out the emergency floppies.

To make a full tape backup capable of disaster recovery you should use cpio NOT tar. (The reason is that tar doesn't backup/restore the device nodes properly in /dev).

Typically:

Code:
 
 # cd /
 # find . -depth -print|cpio -ov -C10240 -K<tape size in K's> /dev/rct0

Yes, you can leave out the -C switch out but it is more efficient to write 10K blocks to tape. The -K should specify the capacity of each tape so that it calls for the next tape if needed. You should also use the -c switch if you want to write in 'portable' format such as knowing you are going to change platforms.

With a 'root & boot' set you can boot from floppy which contains all the commands needed for recovery, the required boot block copies, etc. So you can use the 'divvy' command to lay out a new hard drive and create the filesystems. The 'dd' command to write out boot blocks 0 and 1.
You can then mount your new empty hard disk root filesystem and restore the whole from tape. Also, restore any non-root filesystems.

That is broadly it. Feel free to ask further questions.

There is better SCO knowledge on this forum than mine so, down the line, you might ask moderators to move this thread to the SCO forum proper where it will be more likely to be seen by the right people.

Hope that helps.

Last edited by hicksd8; 10-01-2015 at 07:49 AM..
This User Gave Thanks to hicksd8 For This Post:
 

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FLEXBACKUP(1)						      General Commands Manual						     FLEXBACKUP(1)

NAME
flexbackup - a flexible backup/archiving tool SYNOPSIS
flexbackup [OPTION] DESCRIPTION
Flexbackup is a perl script front-end to various low-level archiving utilities such as tar, dump/restore, cpio, and others. BACKUP OPTIONS
flexbackup -dir <dir> Backup a directory tree starting from path "path" using level 0 (full). flexbackup -set all Backup all sets defined in flexbackup.conf(5) using level 0 (full). flexbackup -set <tag> Backup a set named "tag" using level 0 (full). The set name is defined in flexbackup.conf(5). flexbackup [...] -level <0-9 | full | differential | incremental> Change backup level to a number "0-9", or one of the symbolic names: "full" (level 0); "differential" (level 1); "incremental" (pre- vious backup level + 1). flexbackup [...] -pkgdelta <rpm | freebsd> Prune backup to files not part of a package or changed from distributed version. flexbackup [...] -wday <0-7> Backup only if the week day matches the input number. Sunday is 0 or 7. flexbackup [...] -pipe Write backup data to stdout rather than file/device. flexbackup [...] -ignore-errors Continue backups even if commands return error status RESTORE OPTIONS
flexbackup -list List files in archive. flexbackup -extract Extract (restore) all files from archive into your current working directory. flexbackup -extract -flist <filelist> Extract (restore) the files listed in text file "filelist" into your current working directory. flexbackup -extract -onefile <filename> Extract (restore) the single file named "filename" into your current working directory. flexbackup -compare Compare the archive with the files in your current working directory. flexbackup -restore Interactive restore (dump type only for now). flexbackup [...] -num <n> Read file number "n" from tape. If not given uses current tape position. flexbackup [...] <archive> If archiving to files rather than a device, use file named "archive" for the list/extract/compare/restore operations. flexbackup [...] -pipe Read backup data from stdin rather than file/device. INDEXING OPTIONS
flexbackup -toc List current device's table of contents. flexbackup -toc all List all known table of contents. flexbackup -toc <key> List table of contents for specific database index key named "key". flexbackup -rmindex all Force delete all database index info. flexbackup -rmindex <key> Force delete specified database tape/dir index key named "key". flexbackup -rmindex <key:file> Force delete specified database tape/dir index key named "key", file number "file". MISCELLANEOUS OPTIONS
flexbackup -newtape Erase and create new index key (but don't do any backups). flexbackup -rmfile all If archiving to files rather than device, remove all files and index information. flexbackup -rmfile <file> If archiving to files rather than device, remove the file named "file" and its index information. flexbackup [...] -c <file.conf> Use file named "file.conf" for configuration information instead of /etc/flexbackup.conf(5). flexbackup [...] -type <type> Override $type setting from config file with "type". flexbackup [...] -compress <type> Override $compress setting from config file with "type". flexbackup [...] -device <device> Override $device setting from config file with "device". flexbackup [...] -d <'setting=value'> Override $setting setting from config file with "value". flexbackup -dir <dir> -erase Force a rewind/erase before backup of directory named "dir". flexbackup -dir <dir> -norewind Do not rewind tape after a single backup of directory named "dir". flexbackup -set <tag> -noreten Do not retension tape for level 0 (full) backups of set named "tag". flexbackup -set <tag> -noerase Do not rewind/erase tape for level 0 (full) backups of set named "tag". flexbackup [...] -reten Force a retension of tape before reading. flexbackup [...] -defaults Do not use any default values for config variables. flexbackup -version Display version and exit. TESTING
/DEBUGGING OPTIONS flexbackup -test-tape-drive Tries writing/reading files to make sure you have tape driver and parameters set up correctly in flexbackup.conf(5). flexbackup [...] -n Don't run actual dump or mt commands, just print the steps that would be taken (dry run). flexbackup [...] -type filelist Run a special backup type that just saves a list of files that would have been archived. FILES
/etc/flexbackup.conf - configuration settings REPORTING BUGS
Report bugs to (flexbackup-help@lists.sourceforge.net) AUTHOR
Written by Edwin Huffstutler (edwinh@computer.org) SEE ALSO
flexbackup.conf(5) afio(1) mt(1) tar(1) star(1) cpio(1) dump(1) restore(1) buffer(1) mbuffer(1) Flexbackup Oct 2003 FLEXBACKUP(1)
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