In article <1992Aug26.144800.6995@cmcl2.nyu.edu> wuwei@acf3.nyu.edu (Wei Wu) writes:
quoted text
>
>I have a system with 386DX/25, 8Mb RAM, IDE disk, AHA1542B and Fujitsu 
>SCSI disk, Linux 0.97-pl1.5.).
>On my IDE driver I have one primary partition for dos, one small
>primary partition for Linux root, and one extended partition all for
>OS/2.  On the SCSI disk I have three primary partitions for Linux,
>(two for data, one for swap) and one big extended partition divided
>two logical partitions, one for DOS and one for OS/2.
>
>My problem is this. When I boot Linux from floppy, everything is OK.
>In the boot up message, it stated that the primary and all the logical
>partitions are recongnized.
>
>However, if I boot the same image from hard disk, (shoelace installed)
>at boot up, it stated that the primary partitions are OK, the logical
>partition on IDE is recongnized, but for the SCSI disk, the primary
>partitions are recongnized , the logical partitions on the extended
>partitions are NOT recongnized, it gives error messages 'cann't read
>partition table on device 804' or something like that. Then I cann't 
>access the extended partition on SCSI disk.  
>Note that when I boot from floppy everything is fine, I CAN access 
>the extended partition on the SCSI disk just fine.
>
>Do you have any idea what the problem could be?
>
>Thanks in advance.
>
>Wei Wu (wuwei@acf3.nyu.edu)
>

I have the same problem.  I posted about my problem a couple of
weeks ago, but the only responses I got were email messages from
others (including Wei Wu) who are having the same problem.  I ONLY
have a SCSI drive, and I was using logical partitions for Linux /usr
and swap.  Everything's fine if I boot from floppy, but when I boot
from HD, I get a "Unable to read partition table of device 0801"
message.

I sounds like it must be SCSI related.  Perhaps some horrid thing
that OS/2 does (yes, I'm guilty), maybe because of a HPFS logical
partition?  I'm also using the 1542B, a Fujitsu M2624FA, and 0.97.

Any ideas, Drew?  

If anyone would like the exact boot-up messages that I get with
a floppy boot vs. a HD boot, let me know.  They were in my
original posting and I still have them around.

=============================================================================
 Hal N. Brooks     Voice: (706) 546-7792     Internet: hal@pollux.cs.uga.edu
=============================================================================