QNX Loader Confused?
Michael Migdol
I'm a new QNX user; I've basically come into the middle of a project that is using QNX. We are having an identical problem on both of
our two machines. On boot up, we see (as expected) the following:
QNX Loader
Boot Partition x (x == the QNX partition)
Press Esc for alternate OS
However, unless we press ESC quickly, the machine hangs (i.e. no keyboard response, no further activity, sounds like the HD is quiet).
If we hit escape, the machine comes up in QNX (!!), and we have no apparent problems. Fdisk also indicates no problems. The only way
we can start up from our DOS partition is to manually set that to the boot partition using fdisk.
When we boot up QNX from floppy, we can not successfully mount the QNX HD partition from either computer, although the symptoms
change. On one computer, when we try to mount the partitions off of /dev/hd0, we get an error message indicating "No signature in DOS
extended partition #1", and only /dev/hd0t6 is created. On the other, we can mount the QNX file system from the QNX partition, but
any access to it gives a "Corrupted file system detected" error message.
Is this at all similar to anything anyone has experienced? I'm guessing that there's some kind of problem with the QNX loader, but I'm
still new and not too sure where to start. Any hints and/or debugging tips would be appreciated.
Thanks in advance!
Michael Migdol
Matsushita Electric Works
Central Research Laboratory
Signal Processing and Software Research Group
Mitchell Schoenbrun
: we can start up from our DOS partition is to manually set that to the boot partition using fdisk.
When you press ESC you get the ALT boot. Since it is working, the following
should help your situation:
# cp /.altboot /.boot
# cp /etc/config/altsysinit /etc/config/sysinit
--
Mitchell Schoenbrun --------- masc...@netcom.com
John Halpenny
>
> QNX Loader
> Boot Partition x (x == the QNX partition)
> Press Esc for alternate OS
>
> If we hit escape, the machine comes up in QNX (!!), and we have no apparent problems. Fdisk also indicates no problems. The only way
> we can start up from our DOS partition is to manually set that to the boot partition using fdisk.
>
.boot file is bad. If you want dos, you have to type the partition
number quickly after 'boot partition n' *before* it says ' Press esc....'
John H.
>
Greg Bergsma
: Hello everyone,
: I'm a new QNX user; I've basically come into the middle of a project that is using QNX. We are having an identical problem on both of
: our two machines. On boot up, we see (as expected) the following:
: QNX Loader
: Boot Partition x (x == the QNX partition)
: Press Esc for alternate OS
: However, unless we press ESC quickly, the machine hangs (i.e. no keyboard response, no further activity, sounds like the HD is quiet).
: If we hit escape, the machine comes up in QNX (!!), and we have no apparent problems. Fdisk also indicates no problems. The only way
: we can start up from our DOS partition is to manually set that to the boot partition using fdisk.
: When we boot up QNX from floppy, we can not successfully mount the QNX HD partition from either computer, although the symptoms
: change. On one computer, when we try to mount the partitions off of /dev/hd0, we get an error message indicating "No signature in DOS
: extended partition #1", and only /dev/hd0t6 is created. On the other, we can mount the QNX file system from the QNX partition, but
: any access to it gives a "Corrupted file system detected" error message.
: Is this at all similar to anything anyone has experienced? I'm guessing that there's some kind of problem with the QNX loader, but I'm
: still new and not too sure where to start. Any hints and/or debugging tips would be appreciated.
: Thanks in advance!
: Michael Migdol
: Matsushita Electric Works
: Central Research Laboratory
: Signal Processing and Software Research Group
To boot into DOS you need to hit the number of the DOS partition (probably a 4)
BEFORE the "Press ESC..." message appears. But you need to be quick.
By the way, have you received any information regarding the Asia/Pacific QNX
conference to be held in Melbourne Australia Nov 19-21? If not, send me your
fax number and I will send you an invitation.
Greg Bergsma
DIRECTOR, BUSINESS DEVELOPMENT
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Computer Network Systems Pty Ltd _--_|\
A.C.N. 008 594 572 / \
email : gr...@cns.com.au \_.--._/
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Phillip Sessions
> I'm a new QNX user; I've basically come into the middle of a project that
is using QNX. We are having an identical problem on both of
> our two machines. On boot up, we see (as expected) the following:
>
> QNX Loader
> Boot Partition x (x == the QNX partition)
> Press Esc for alternate OS
>
> However, unless we press ESC quickly, the machine hangs (i.e. no keyboard
response, no further activity, sounds like the HD is quiet).
> If we hit escape, the machine comes up in QNX (!!), and we have no apparent
problems.
Assuming you are using QNX 4.x
It sounds like the boot image the .boot file in the / directory is non
existant or corrupted. The reason hitting the ESC key boots you into QNX is
that it tell the boot loader to get the boot image from the .altboot file
instead. This doesn't mean that it will boot to an alternate OS it just means
it will boot to alternate QNX setup.
To get QNX to boot normally try rebuilding the .boot file. It tells you how to
do it in the QNX Users Guide, Chapter 11 - Building a custom operating system.
>Fdisk also indicates no problems. The only way
> we can start up from our DOS partition is to manually set that to the boot
partition using fdisk.
>
> When we boot up QNX from floppy, we can not successfully mount the QNX HD
partition from either computer, although the symptoms
> change. On one computer, when we try to mount the partitions off of
/dev/hd0, we get an error message indicating "No signature in DOS
> extended partition #1", and only /dev/hd0t6 is created. On the other, we
can mount the QNX file system from the QNX partition, but
> any access to it gives a "Corrupted file system detected" error message.
>
I spent most of yesterday booting off a floppy and mounting a HD with no
problems at all and I have never seen thoes two messages before. If I had to
guess I would say you may be trying to use the wrong Fsys.xxxx file for your
hard disk.
> Is this at all similar to anything anyone has experienced? I'm guessing
that there's some kind of problem with the QNX loader, but I'm
> still new and not too sure where to start. Any hints and/or debugging tips
would be appreciated.
As I said it has never happened to me but I hope my suggestions help.
--------------------------------------
s...@ausnet.world.net (Phillip Sessions)
@time@ @date@
It dont help to be one of the chosen - Sisters of Mercy