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Pastimes : Dream Machine ( Build your own PC ) -- Ignore unavailable to you. Want to Upgrade?


To: Spots who wrote (851)5/29/1998 1:02:00 AM
From: Zeuspaul  Read Replies (3) | Respond to of 14778
 
Backup drives....changing boot sequence in BIOS

Spots, It may not be the most economical solution but the BIOS in some of the new BX boards seems to give us quite a few options.

From the ASUS P2B mainboard manual

TIP: You may configure two harddiscs to be both Masters using one ribbon cable on the Primary IDE connector and another ribbon cable on the secondary IDE connector. You may install one operating system on an IDE drive and another on a SCSI drive and select the boot disk through BIOS Features Setup.

Then further on they indicate the boot sequence options


C,A A,CDROM,C CDROM,C,A D,A

E,A F,A C only LS/ZIP,C

A,C


My interpretation is that I can also choose between any of four IDE harddrives with installed operating systems. Either Win95 / NT options or backups of either one.

The Aopen AX6B manual indicates more boot options than the ASUS BIOS.

From the manual

This parameter allows you to specify the system boot up search sequence.

              Boot Sequence

A,C,SCSI
C,A,SCSI C: Primary master
C,CDROM,A D: Primary slave
CDROM,C,A E: Secondary master
D,A,SCSI F: Secondary slave
E,A,SCSI LS: LS120
F,A,SCSI Zip: IOMEGA ZIP Drive
SCSI,A,C
SCSI,C,A
C only
LS/ZIP,C


The CDROM also looks good. We would not be able to back up an entire drive on only 650 MB. With some harddrive organization it might work out well. Perhaps the entire root directory and the Windows directory would be sufficient for a boot CDROM. Do you have any experience with making boot CD's? At $2 per CDR it is an option that can not be overlooked.

How do you select your two different versions of NT? Partition Magic has a boot manager for OS selection as does NT. I assume this all resides on the boot drive. If the boot drive fails wouldn't the multiple OS options also fail? If one had a second drive with a complete backup ( no brainer option, my preference ) or at a minimum an operating system, or an operating system and a compressed drive backup ( Dave Hanson) would one be able to access the BIOS before reading a failed drive and switch to a good drive without "cracking the case" and restore the system?

Dave, If I had an OS on a second hardrive and a Power Quest compressed image on CDR would it be a simple process to reformat the failed or corrupted drive and then reinstall the image?

Does changing the ID on a SCSI drive change the boot sequence?

Zeuspaul