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- From: rommel@jonas.gold.sub.org (Kai Uwe Rommel)
- Newsgroups: comp.os.os2.misc
- Subject: Re: 1G HD Install OS/2 2.1
- Message-ID: <726582840rommel.root@jonas.gold.sub.org>
- Date: 9 Jan 93 12:34:00 GMT
- References: <1993Jan8.221354.6659@netcom.com>
- Sender: root@jonas.gold.sub.org
- Organization: Private
- Lines: 87
-
- In article <1993Jan8.221354.6659@netcom.com> gasman1@netcom.com (David A. Silva) writes:
- >
- >Just received the 2.1 beta CD. My setup is a 486DX2-50 ISA with AMI bios,
- >Adaptec 1542B, Toshiba MK-538FA 1.2G HD, Pioneer DRM604X CDRom, 16 meg
- >memory. My pre-existing partitions under DOS 5.0 are 300 meg primary,
- >660 meg extended divided into 2 330 meg logical drives. The config.sys on the
- >2nd disk has "basedev=aha154x.add /ET" for support of the Pioneer as per the
- >readme file on the CD. BTW, this is a clean install with no prior OS/2 on
- >this particular hard disk.
- >
- >Using the CDRom install, I get thru the first 2 disks into FDISK. Fdisk
- >recognizes 212 meg of free disk space. I install boot manager-which then
- >automatically becomes a primary partition. I create a partition in the
- >remaining space, and it automatically becomes a primary partition. Fdisk will
- >not allow me to set this as installable. I then deleted both these new
- >partitions, and assigned the free space as one big extended partition. Fdisk
- >then will not allow me to install the boot manager.
- >
- >I then deleted these partitions again, and booted the OS/2 v2 GA install
- >disks. I get to Fdisk, which only sees 64 meg of free diskspace. I install a
- >boot manager partition ( which again automatically becomes primary ) and set
- >the remaining freespace as a partition ( again, automatically becomes
- >primary ). I set the last partition as installable, continue and the screen
- >again selects C as the install drive. Entering fdisk again, the last
- >partition is not set as installable.
- >
- >What amm I missing here? Any ideas how to solve this? Thanx - David
-
- The space beyond 1GB can only be accessed by the native AHA154X driver
- and not by the BIOS at system boot time and not by the IBMINT13.I13
- generic driver used for installation.
-
- I would suggest the following, in case you can affort deleting all
- data from the disk or have a way to backup/restore:
-
- 1. delete all partitions
-
- 2. start installation of OS/2
-
- 3. get into FDISK and install boot manager at the beginning of the
- free disk space
-
- 4. create a primary partition as large as you like after the boot
- manager one and mark it installable, perhaps create one only large
- enough to hold OS/2 and swap space (say 70-100MB) to keep the OS
- separated from apps and data
-
- 5. install OS/2 on this partition
-
- 6. after rebooting, make sure IBMINT13.I13 is not installed in
- config.sys but AHA154X.ADD is and that the system boots fine with
- this config.sys
-
- 7. then use FDISKPM to create any additional partitions, including
- those exceeding the first 1GB
-
- Alternatively, save all data from the 300MB primary to the 330MB
- extended partitions and install OS/2 on the 300MB primary or use OS/2
- FDISK at installation time to delete it and create the boot manager
- and two primaries with combined size equal to 299MB instead (boot
- manager takes 1MB). Then use the remaining space beyond 1GB for an
- additional 212MB extended partition.
-
- Because the 1542B BIOS cannot read what is beyond 1GB (the 1542C may
- be able), it cannot boot from a partition in the 1GB to 1.2GB range.
-
- Now, if you had filled the 1GB with partitions from DOS FDISK and then
- install boot manager beyond the 1GB border with OS/2 FDISK, the BIOS
- obviously cannot start boot manager at boot time.
-
- Also, since the installation uses the IBMINT13.I13, it would be unable
- to access the partition after the 1GB border and therefore cannot
- install OS/2 there and thus does not let you mark it installable.
-
- However, to *create* a partition in this area, only access to the
- partition table is required, which is the first sector on the disk, so
- this can even be done with the IBMINT13.I13.
-
- Kai Uwe Rommel
-
- --
- /* Kai Uwe Rommel Muenchen, Germany *
- * rommel@jonas.gold.sub.org Phone +49 89 723 4101 *
- * rommel@informatik.tu-muenchen.de Fax +49 89 723 7889 */
-
- DOS ... is still a real mode only non-reentrant interrupt
- handler, and always will be. -Russell Williams
-