SCO Openserver 5.0.7 tar restore to different hardware from tape

I have a situation where we have an application that is running on a relatively old IBM computer which is running SCO Openserver 5.0.7.  There is a nightly tar backup of the system. I would like to move this system to different hardware by installing SCO Openserver 5.0.7 on a second box and then restoring the tar system backup.  How different can the new box be for this to work - different CPU, different motherboard, different hard drives - basically how hardware independent is Openserver 5.0.7 and a tar backup of it when it comes to restoring to different hardware?
lineonecorpAsked:
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yuzhCommented:
the SCO version of tar is no good for system level backup, you need to use cpio to do the job.

Please have a look at my answer in http:Q_21868534.html   and http:Q_21958164.html

in most case tar is good enough for normal data backup, but it can not handle special files (eg, device files).

FYI, the SCO kernel is hardware depandent. it is unlikely the full system backup (clone disk) work with the new machine.  the SCO license is also depands on the hard drive ID as well.

You can try to clone the HD and put the new HD to the new machine to see if it work(it is likely you have problem!), the best you can do is to reinstall everything to the new machine, and then transfer the data across.

SCO is getting out of the market, consider change to Linux, FreeBSD, Solaris x 86, they are free lunch
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lineonecorpAuthor Commented:
the SCO version of tar is no good for system level backup, you need to use cpio to do the job.

*** Understood but I am planning to build a new SCO 5 system - see further down - so I'm not sure I need a system level backup.  All I need is to have the ability to run the single custom app that is running on the system now on a different SCO 5 system. I need this because we no longer have the application install disks for this custom app and the folks who created the application are gone so I don't have the luxury of restoring just the data to a second box - at most I can have a second box running SCO 5 that I can restore the tar backup  to from the current system

Please have a look at my answer in http:Q_21868534.html   and http:Q_21958164.html
*** will look at

in most case tar is good enough for normal data backup, but it can not handle special files (eg, device files).

FYI, the SCO kernel is hardware depandent. it is unlikely the full system backup (clone disk) work with the new machine.  the SCO license is also depands on the hard drive ID as well.

You can try to clone the HD and put the new HD to the new machine to see if it work(it is likely you have problem!), the best you can do is to reinstall everything to the new machine, and then transfer the data across.

**** This is what I was hoping to do.  Fresh install SCO on a different computer, add tape drive and then restore the tar backup from the old system to the new system - would that backup/restore be good enough to restore the application that is running on the old system?

SCO is getting out of the market, consider change to Linux, FreeBSD, Solaris x 86, they are free lunch

*** As I mentioned there  is a legacy app running on the SCO system and it will not be around for a long time but we still need some redundancy - knowing we have a hot spare that we can restore  tar to from the old one or even switching so the older box is the backup if we do a successful restore to the second SCO 5 box  would be a first step; after that we would look at virtualization
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yuzhCommented:
>>All I need is to have the ability to run the single custom app that is running on the system now on a different SCO 5 system.

    It depands on how the software was installed and how the software license manager work.
If there is no license issue, and the software was installed under on dir tree, you can try to use cpio to backup the dir tree for the software and restore it to the new machine to see if it work.

tar might not work properly if the software use symboly links, it might cause trouble to you.
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lineonecorpAuthor Commented:
Thanks. Let me look into this a little further and get back to you.
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