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Date: Tue, 6 Feb 1996 02:23:09 +0500
From: dbradt@ford.com (Dennis Bradt (R))
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Earlier this morning I was trying to compile a new kernel to allow for compatibility with linux and IBCS2. I followed the faq exactly. I placed into MYKERNEL 

options "COMPAT_LINUX"
options "COMPAT_IBCS2"
options LKM
options ATAPI

I then executed the following procedure

config MYKERNEL
cd ../../compile/MYKERNEL
make depend 
make all
When I did make all it got to

.<</../ufs/ufs/ufs_ihash.c 

and it said it did not know how to make it. I typed again 

make all

and it compiled 

../../ufs/ufs/ufs_ihash.c

{note: the two files and there paths are not typos but actually when was said the compiler} it went further into the compilation at which time it decided to reboot the system. fsck revealed all sorts of corruption and /dev/wd0a was now unrecognizable and will not boot at all.

What should be done in order to prevent this from happening next time? Is there a safe way to compile this Kernel without it blowing up? 

Also I need to know how I can get the system to recognize the cdrom which I have installed. I have tried everything except for successfully compiling the kernel. My cdrom is a soundblaster situated on a secondary IDE interface card. There is no setting on the card itself for making it a master rather than slave drive. The port at which it is located is 0x250. In order to give it this port address I gave the parameter at boot

boot: -c

and then I typed visual and inserted the port address into the matcd0 device. The cdrom is a 2x speed cdrom. 

When I was first installing I did the above and it looks like the kernel recognized the cd 

matushita/panasonic

but when it came to the install it said no such device existed and I had to eventually install it from a msdos partition.

please email with any info.

-Dennis Bradt 
 dbradt@pt8186.pto.ford.com

ps. The type of system I have is an AMD386 40MHz with  
floppy, hard disk controller and  2 serial, parallel, and game port on one card
a Western Digital Caviar 1.2Gig hard drive partition 300M dos and
           rest freebsd2.1
SoundBlaster 2x CD on IDE interface card
US Robotics 14.4 fax/voice/modem
TEAC floppy tape drive using 3010 cartridges
8M Ram using 3 chip simms 32 pins 70ns.

pss. I am not sure if the hardware is defective, possibly the motherboard, but I have changed the hard disk floppy controller at least two times because It looked like whenever I tried to change IRQ settings for the com devices, they do not take effect. I don't really want to change all my hardware if I don't have to. In windows3.1 the system still works despite the com irq settinqs on the controller assuming everthing else is configured correctly.