19 Apr
2006
19 Apr
'06
11:21 p.m.
Boot the system to RT11 and put the cartridge that will not boot
in the second drive (assuming DL1:). Do a .DIR RT11*
You will see RT11FB.SYS, RT11SJ.SYS and probably RT11XM.SYS.
They are the monitors. Choose the one you want and do
.COPY/SYS DL1:RT11FB.SYS .
(exactly like this, the final dot belows to the comnmand).
That will write the monitor to the boot block(s).
- Henk.
-----Original Message-----
From: cctalk-bounces at classiccmp.org
[mailto:cctalk-bounces at classiccmp.org] On Behalf Of Ethan Dicks
Sent: donderdag 20 april 2006 7:39
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: RL02 problem
On 4/20/06, Jim Beacon <jim at g1jbg.co.uk> wrote:
This message and attachment(s) are intended solely for the use of the addressee and may
contain information that is privileged, confidential or otherwise exempt from disclosure
under applicable law.
If you are not the intended recipient or agent thereof responsible for delivering this
message to the intended recipient, you are hereby notified that any dissemination,
distribution, or copying of this communication is strictly prohibited.
If you have received this communication in error, please notify the sender immediately by
telephone and with a "reply" message.
Thank you for your cooperation.
After rebuilding the machine back into its new
box, it all
worked. A
little more investigation shows that I can still
read the
faulty pack
(installed in the second drive), but that the
boot
information is either corrupt or gone.
.
.
.
Now for the question: can I restore the boot
information, or will I
have to re-initialise the pack and start again? (not a problem - it
was my games pack with the extended monitor, but I can
restore it from
a backup, if needed).
Should be easy enough, but for the life of me, I can't remember the
RT-11 command to write the boot block. I used to do it all
the time with 2.9BSD and dd... the normal distro contained a
dir of boot block source code for various controllers. All
you had to do was compile the assembly into an executable,
then dd it to the front of the drive.
If you have a way to mount that pack in a UNIX machine, you
could use dd to transfer the first block from another pack
onto it - that should do the trick. With 100% RT-11, though,
there should still be an easy way to do it (but I haven't
really used RT-11 on a daily basis since 1989).
I will take all of the comments of
"idiot" with good grace.......
No need... this sort of thing used to happen back in the day
with an amazing regularity.
-ethan