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Re: 7.1 on a IBM 43P, 7248-132

I'm using the integrated ncr53c810 SCSI-2 controller so it may not be the same issue you are having.

Using sysinst_small.fs in the PReP partition allowed loading of the boot loader. The boot process will proceed to a point where it requires user input to specify a boot device because it does not find one by default. Providing it "sd0" will allow for the generic kernel to load (when going multi-user?) and provide the login prompt.

If I enter "boot -s" at the boot loader prompt (single user), it will boot into sysinst.

sysinst.fs will boot when I network boot with BOOTP/TFTP. I have not tried writing that into the PReP partition (as I did with the small version) but I suspect it would work because it is less than 2MB in size.

sysinst_com0.fs used in the same way mentioned above will not work for me. I have not tried sysinst_small_com0.fs in this manner.

On 06/30/2017 03:35 AM, Artyom Tarasenko wrote:
Interesting. At a first glance the log says that the scsi driver is
broken in the NetBSD 7+. I hit that problem in this thread:

Are you saying the very same NetBSD version works for you if you use a
smaller sysinit image?

On Fri, Jun 30, 2017 at 7:23 AM, T <bobs%thelibertytree.org@localhost> wrote:
The PReP partition was set to use 5MB (as recommended in the documentation)
and located in the first BIOS partition. Only the kernels 2MB or less seem
to make it to the boot loader for me. The <2MB serial console sysinit image
will make it to the boot loader if I put it into the PReP partition, but
will not boot past that point as mentioned in this thread:

On 06/29/2017 03:32 AM, Artyom Tarasenko wrote:
Is it a general issue, or was the PReP partition just too small in your

On Thu, Jun 29, 2017 at 10:15 AM, T <bobs%thelibertytree.org@localhost> wrote:
Found that the kernel size is the issue by using mkbootimage with
install_small.fs and dding that into the PreP partition and getting that
boot. Will end up doing the small kernel work around mentioned in the
referenced email thread.

On 06/24/2017 06:37 PM, t wrote:
I'm trying to get NetBSD 7.1 working on a 7248-132 but cannot get the
computer to boot from the SCSI disk after installation. Booting the
install kernel over the network seems to work with BOOTP/TFTP. After
completing the installation process and restarting the machine, I load
into the SMS and change the boot priority to boot from the SCSI disk
instead of the network. Upon restarting and completing the boot screen,
the computer ends up at a black screen and blinking cursor.
I believe this issue may be related to this thread:

This is my first time installing NetBSD so it could also be something

I've tried re-writing the generic kernel to the prep partition with
"mkbootimage" but that did not seem to work.
Any help would be appreciated.

One other thing I've noticed with this machine is interactions with the
pcn0 device seem to occasionally lockup the machine. I originally was
going to install the NetBSD binary packages from a NFS mount, but the
system would lockup halfway through the installation of the second
package. I bypassed this issue by using the CDROM instead.

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