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From: imgidata@netcom.com (Robert Fagen)
Subject: Kernel Recompiling... Again
Message-ID: <imgidataD9oq4q.18y@netcom.com>
Organization: NETCOM On-line Communication Services (408 261-4700 guest)
X-Newsreader: TIN [version 1.2 PL1]
Date: Mon, 5 Jun 1995 05:34:02 GMT
Lines: 59
Sender: imgidata@netcom8.netcom.com
A while back I posted a query about "Invalid format!" messages at boot
time from trying to load a PPP enabled kernel. I've since looked into
the source code and discovered the following things:
1. I found that "Invalid format!" is a response to the kernel
having an invalid magic number. I looked in the kernel that
I'm trying to boot, and the magic number was identical to the
default kernel.
2. In utter frustration, I reinstalled from scratch. From the
response to my prior question, I attempted to work around what
may be a hardware problem by changing from:
Partition Cyl Start Size Type Mount
a 0 25 Mb newfs /
b 3000-ish 32 Mb swap swap
c FreeBSD slice
d Entire Disk
e 6000-ish 435Mb newfs /usr
to:
Partition Cyl Start Size Type Mount
a 4000-ish 25 Mb newfs /
b 0 32 Mb swap swap
c FreeBSD slice
d Entire Disk
e 6000-ish 435Mb newfs /usr
and that resulted in not being able to find *any* kernel. If I
typed '?' at the boot prompt, I got ". .." as the entire result.
I also tried:
Partition Cyl Start Size Type Mount
a 4000-ish 460Mb newfs /
b 0 32 Mb swap swap
c FreeBSD slice
d Entire Disk
and that didn't work either.
3. I went back to the original partitions, and immediately after
installing, I made a copy of 'kernel', set the same permissions
and did a chflags (per the 'make install' steps). When rebooting,
I got the 'Invalid format!' message for the kernel copy, and the
original kernel booted fine.
Help!
TIA,
Rob
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