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#1
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Access 2nd Partition
Hi,
One of my computers is a portable Compaq 386 (sold for $5,700 around 1988). It has 2 meg of ram and Dos 6.22. I replaced the 40 meg hdd with a Quantum "Lightning" 750 meg, that was partitioned (on a newer computer) into two logical drives (520 meg and 230 meg). The 386 BIOS doesn't "see" above 520 meg. Note: The MBR is the same as it was on the newer computer. I would like to know a way to access the second 230 meg partition which was formatted on the newer computer. Editing the MBR, and changing the "active" partition to the second partition, resulted in a "missing os" error during a reboot. If I booted from a floppy boot disk, then switched to C: drive, I was in the "first partition drive". I put back the original MBR. I asked a tech support person from Maxtor, which now owns Quantum's hdd products, where could I get an "overlay"? He told me to download "MaxBlast" V3.*, which I did. After creating the bootable floppy, I tried it (bootable floppy) on the 386 (CGA graphics system), but it couldn't complete it's startup, perhaps due to incompatibility? The error message, "command or filename not recognized" (no clue to what command or filename?) was displayed and everything "locked up". Note: I found the source of that error message in "COMMAND.COM" (of DrDos) in that bootable floppy, created by MaxBlast. I searched the web for an old Quantum overlay, but I couldn't find one. If you know a technique on how I can access the second partition, please let me know. Note: I don't have to access both partitions at the same time. If you know of a "switching" technique, that will be just fine. Thanks in advance, Brad Before you type your password, credit card number, etc., be sure there is no active key logger (spyware) in your PC. |
#2
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The Maxblast software should work, but only if the hard disk is properly
prepared for it. Simply running the program off the floppy will not automatically give you access to the second partition. If the hard drive was not prepared with the software this probably explains the error message. You need to find the command in the Maxblast software that partitions the hard drive, formats it, and installs the overlay loader into the hard drive boot sector. This software will be accessed from floppy following a normal DOS boot. This process will delete everything on the hard drive, so you will need to reinstall your operating system and restore your data files. Therefore, make sure you have everything you need for a full restoration before starting this procedure. -- Jeff Richards MS MVP (Windows - Shell/User) "Brad" wrote in message ... Hi, One of my computers is a portable Compaq 386 (sold for $5,700 around 1988). It has 2 meg of ram and Dos 6.22. I replaced the 40 meg hdd with a Quantum "Lightning" 750 meg, that was partitioned (on a newer computer) into two logical drives (520 meg and 230 meg). The 386 BIOS doesn't "see" above 520 meg. Note: The MBR is the same as it was on the newer computer. I would like to know a way to access the second 230 meg partition which was formatted on the newer computer. Editing the MBR, and changing the "active" partition to the second partition, resulted in a "missing os" error during a reboot. If I booted from a floppy boot disk, then switched to C: drive, I was in the "first partition drive". I put back the original MBR. I asked a tech support person from Maxtor, which now owns Quantum's hdd products, where could I get an "overlay"? He told me to download "MaxBlast" V3.*, which I did. After creating the bootable floppy, I tried it (bootable floppy) on the 386 (CGA graphics system), but it couldn't complete it's startup, perhaps due to incompatibility? The error message, "command or filename not recognized" (no clue to what command or filename?) was displayed and everything "locked up". Note: I found the source of that error message in "COMMAND.COM" (of DrDos) in that bootable floppy, created by MaxBlast. I searched the web for an old Quantum overlay, but I couldn't find one. If you know a technique on how I can access the second partition, please let me know. Note: I don't have to access both partitions at the same time. If you know of a "switching" technique, that will be just fine. Thanks in advance, Brad Before you type your password, credit card number, etc., be sure there is no active key logger (spyware) in your PC. |
#3
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It is my understanding that the latest version of Maxblast tries to =
create a 6 mb ramdrive, which can't be done on the problem computer. See below for = older versions of Maxblast and Quantum disk managers. I suggest a virus scan = before using. http://www.pipeline.com.au/Internet/UserServ/FTP.HTM Ben "Brad" wrote in message = ... Hi, =20 One of my computers is a portable Compaq 386 (sold for $5,700 = around 1988). It has 2 meg of ram and Dos 6.22. I replaced the 40 meg hdd with a Quantum "Lightning" 750 meg, that was partitioned (on a newer = computer) into two logical drives (520 meg and 230 meg). The 386 BIOS doesn't = "see" above 520 meg. Note: The MBR is the same as it was on the newer = computer. I would like to know a way to access the second 230 meg partition = which was formatted on the newer computer. Editing the MBR, and changing the "active" partition to the second partition, resulted in a "missing os" = error during a reboot. If I booted from a floppy boot disk, then switched = to C: drive, I was in the "first partition drive". I put back the = original MBR. =20 I asked a tech support person from Maxtor, which now owns = Quantum's hdd products, where could I get an "overlay"? He told me to download = "MaxBlast" V3.*, which I did. After creating the bootable floppy, I tried it = (bootable floppy) on the 386 (CGA graphics system), but it couldn't complete = it's startup, perhaps due to incompatibility? The error message, "command or filename not recognized" (no clue to what command or filename?) was displayed and everything "locked up". Note: I found the source of = that error message in "COMMAND.COM" (of DrDos) in that bootable floppy, created by MaxBlast. =20 I searched the web for an old Quantum overlay, but I couldn't find = one. If you know a technique on how I can access the second partition, = please let me know. Note: I don't have to access both partitions at the same = time. If you know of a "switching" technique, that will be just fine. =20 Thanks in advance, Brad =20 Before you type your password, credit card number, etc., be sure there is no active key logger (spyware) in your PC. |
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