|Updated January 10, 2007
Cases & Power Supply
When programming the BIOS remember to disable any integrated peripherals that may conflict with add on components such as modems. In the advanced setup force the use of ISA interrupts for cards that use them.
Legacy OS Modems
Hard Disk Drive & Backup Drive
Clients rarely make use of tape drives for backups. We recommend the use of a second hard drive as a backup medium. In the event of a disk drive failure the second drive can be strapped as a master and they are back in business. This is a simple and cost effective means of providing backups but is of no value in the event of theft. A third removable drive may be used for off site backups.
Floppy Disk Drive
The POS systems are usually located in computer unfriendly environments. I recommend the use of a good quality keyboard such as Keytronics or Cherry.
|OS System||Linux Red Hat and Fedora are the only currently supported Operating Systems.
SCO OSR5.X/Xenix are now (Legacy)
Too install a new disk as a second backup you must follow these steps;
1) Create bootable floppy diskette using DineAmix supplied images on Linux/Xenix computer.
Linux: "# cat xnx.boot > /dev/fd0" OR
2) Jumper the BACKUP drive with a MASTER configuration.
3) Install BACKUP drive into your inhouse computer.
4) Manualy set backup disk geometry in BIOS. (see Step 8 below).
5) Insert Xenix bott diskette in drive and restart system .
6) Install the Xenix OS onto the new BACKUP drive.
1) Install 2 removable disk case into the Clients PC.
2) Install the EXISTING drive into the top case slot.
3) Jumper the BACKUP drive as a MASTER. (should already be done)
4) Install the new BACKUP drive into the second case slot.
5) Connect the EXISTING drive case connector to the PRIMARY IDE interface.
6) Connect the BACKUP drive case to the SECONDARY IDE interface.
7) Start the computer and enter the BIOS.
8) NOTE: Xenix has disk size limit of 2gb.
2gb = 2147483648 bytes
Assume the secors of the new drive are 63 and 16 heads.
heads = 2147483648 / 16 / 63 / 512
Answer = 4161 Cyls
Note 4161 is not an even number. Take the original number of Cyls of
9) Save your configuration and restart the computer.
10) Logon as the root user.
11) Create a "backup" account if one does not already exists.
12) Move to "/usr/backup" directory and untar DineAmix supplied scripts.
13) Move "comptime" program to "/usr/bin".
14) Logon as the backup user and perform a complete backup.
The backup program will create entries as required to perform nightly backups.