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From: pcm@iwarpr0.intel.com (Phil C. Miller)
Newsgroups: comp.os.minix
Subject: Re: Large disks
Message-ID: <5030@omepd.UUCP>
Date: 10 Oct 89 12:35:10 GMT
References: <223@vsserv.scri.fsu.edu>
Sender: news@omepd.UUCP
Reply-To: pcm@iwarpr0.UUCP (Phil C. Miller)
Organization: Intel Corp., Hillsboro
Lines: 47

In article <223@vsserv.scri.fsu.edu> nall@nu.cs.fsu.edu (John Nall) writes:
>I've been running Protected Mode Minix successfully on my 12-Mhz
>AT-clone for some time.  The 40 mb hard disk has three partitions,
>with the first one assigned to DOS, the second for /usr and the third
>one for root.

By root, do you mean the directory "/" or the root file system?


>Last night, I tried to move Minix to a new 25-Mhz 386 system, with a
>80 MB harddisk.  From floppies, Minix (protected mode) runs fine.  But
>when I try to do a mkfs /dev/hd2 30000 (for example) it immediately
>craps out with a message something like:

>     put_block failed
>     input line was line 1

>Experimenting, I can do mkfs /dev/hd2 n, where "n" is a much smaller
>number.  For example, mkfs /dev/hd2 1000 works fine.  So it would
>appear that I'm running up against a number that is too large for
>someone (write? ) to handle.  Anyone have any experience with this?


I have experience (not a solution) with the same problem.  I have a disk
similar to yours.  In experimenting with my system, I found that the limit
on my system was exactly n=4080.  I have the /usr partition in the second
slot (same as you) and I have several partitions following /usr.


Judging from the fact that 4080 is not a nice round number (like 4096,
for example), I would guess that it is a parameter to some function which
produces a number too big for 16 bits.





>======================================================================
>John Nall                              Internet:  nall@nu.cs.fsu.edu
>Computer Science Department            Florida State University
>    "Today, a Moon Moth -- tomorrow, a Sea Dragon Conquerer!!"


Phil Miller
pcm@iwarp.intel.com
or
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