Re: Load source on old 9406-720

Ok, now for an update:

I figured out the LRC code (easy) and put the function in to my disk
editor. Now I can patch sectors!

Then, I carefully examined the functional DST user ID 22222222, and the
QSECOFR that I can't access. I 'copied' the values in the privileges list
from QSECOFR to 22222222. Replaced the drive into the 720, crossed my
fingers, and powered it up.

No errors! I was able to log in as '22222222'. So far, so good. But did it
work?

Of course it did! I went to look at the DST user profiles, and where it
only used to show '22222222', it shows them all. Of course I changed the
QSECOFR password to something that would work.

Next step.. reset the operating system default password.... Works ok (at
least the screen says the password override is set)

IPL the system...wait...

And log in as QSECOFR with default password!

Now I am at a screen 'Work with PTFs' - I have never seen this before and
don't know what to do now.

BTW, this is V5R3

I've got some reading to do.

Jim


2012/4/12 Roberto José Etcheverry Romero <yggdrasil.raiker@xxxxxxxxx>

i havent used the wiki yet, but this is the kind of knowledge that
should go into that.
I cant be the only one that always wondered what was in those sectors.

Best regards,


On Thu, Apr 12, 2012 at 9:52 PM, Jim Donoghue <jdonoghue04@xxxxxxxxx>
wrote:

Some more interesting information:

The 522-byte sector contains the 8-byte header, 512 data bytes, and 2

bytes

at the end. The 2 bytes at the end are a LRC code (checksum), but only

one

byte is used (the low-order one).

Jim


On Thu, Apr 12, 2012 at 6:57 PM, Jim Donoghue <jdonoghue04@xxxxxxxxx>

wrote:

Thank you. This will be extremely helpful, I just need to find some good
'6713' drives.

Jim



On Thu, Apr 12, 2012 at 5:55 PM, DrFranken <midrange@xxxxxxxxxxxx>

wrote:

Well you can install another drive, format it if it shows DPHnnnn

(write

protected), then use the copy disk unit data - not the copy load

source.

Now you can power down, swap the LS and the new drive and come back up.

You will however have this issue: The new LS drive is not RAID

protected

because the O/S copied it's DATA not it's SECTORS. So a better option
would be:

Install it
Format. This is a good idea even if you don't need to.
Include it in RAID. If you formatted it first this will be very fast.

If

not it will format it.
NOW copy disk unit data.
Power down
Swap the drives physically.
Power back up.   Possibly you'll be able to exclude that drive from

RAID

and if you can then you can physically pull it out. If you cannot
exclude it (because it has RAID strip data on it) then it will have to
stay for now.

If you attempt an 'out of the box' drive duplication it will fail to

IPL

because the LIC absolutely cares about serial numbers. Every drive has

a

copy of the list of drives in the ASP so it knows if they have all
checked in.

  - Larry "DrFranken" Bolhuis

On 4/12/2012 5:24 PM, Jim Donoghue wrote:

Not all is lost. And, I need some help understanding how these disks

are

configured.

First, the 'failed' load source drive. For the time being, it's not

failed.

There were two bad blocks on the device, and I was lucky enough to

have

a

good copy of the drive before it failed. I used the 'sg_reassign'

command

(part of a Linux SCSI package) to reassign the two bad blocks. Then,

I

copied the good blocks back on the drive. Put the drive back in, and

it

IPLs.

So, I poke around in DST. There is 1 ASP with seven drives. For some
reason, I thought there were two ASPs (one with 2 drives and the

other

with

5). The entire thing is 95% full.

Now, I consider getting a spare drive and making it a copy of the

first

drive. The big question: if I replace the drive and it's contents are
identical, is it going to care? Or will it fail because the new

drive's

serial number isn't the same?

Or, is there a way to add the blank drive to the system and move the

load

source to it, then make it the new load source device?


Jim

On Thu, Apr 12, 2012 at 2:25 PM, Jim Donoghue<jdonoghue04@xxxxxxxxx>

 wrote:

Well, that would have been a fun experiment, but it's not going to

happen.

When I got home this afternoon, tried to IPL the system and get a

SRC

27419000. It turns out the other half of what used to be the load

source

mirror is now bad. The drive in the first slot has an unrecoverable

read

error, and the one in the second slot has a recoverable read error.

(I

determined this by attempting to read them using SCSI tools on the

PC).

Perhaps I should have left it at the scrap metal place.

Jim


On Thu, Apr 12, 2012 at 12:16 PM, Jim Donoghue<

jdonoghue04@xxxxxxxxx

wrote:

It may not matter about the password after all. I can log in as
'22222222', but as I mentioned eariler, the function I need is

restricted.

There is a record for each DST user ID that contains a list of

functions

that the user is allowed access to. I may be able to make the

'22222222'

user's entry have the function I need. I found some interesting

areas

on

the disk during lunch, an audit log and the list of DST user

profiles:

'SecServiceUserProfile' and 'SecPrivilegeList'. Interesting stuff.

Jim



2012/4/12 Roberto José Etcheverry Romero<

yggdrasil.raiker@xxxxxxxxx>

What both of you mean, is. There is usually no way to derive the
password from whatever the OS stores, in linux's case its a shadow
file aka mathematical hash of the password.
I would just pop a lic cd and install, but it is technically a

breach

of the os licence. And i believe it's next to impossible to buy a

key

for such an old system.

Best regards,

PD: you are better off buying a 520 off ebay with the os key, i

have

one, no client access and the such, but it does work.


On Thu, Apr 12, 2012 at 12:03 PM, DrFranken<midrange@xxxxxxxxxxxx

wrote:

I disagree, they are certainly stored. Were they not stored you

could

not log in.  And they must be on disk because I can pull a set of

drives

lock them into another machine, fire them up and sign on.  Just

did

that

this week with a set of drives from last year's COMMON

conference.

Now stored in clear text, of course not. They are encrypted (one

way

only) and then stored, but they or at least a representation of

them

are

in there.>
     - Larry "DrFranken" Bolhuis

On 4/12/2012 10:44 AM, Mark S. Waterbury wrote:

Jim:

Passwords are never stored permanently (on disk) in OS/400 or

IBM i

(or

in most any other modern operating systems).

Instead of using "22222222", try using "QSECOFR" as the DST

userID.

Cheers,

Mark S. Waterbury

   >   On 4/12/2012 9:49 AM, Jim Donoghue wrote:

The machine was 'rescued' from the scrap metal place. I can

log in

to DST

with 22222222, but can't access the option necessary to change

the

QSECOFR

password. I think this machine has V4R3 on it.

I think I am going to have to write some tools to hack around

with

an image

file from the load source disk. I have a hex editor I wrote

that

will

display the EBCDIC characters. What I am thinking of doing is

grabbing two

images of the disk - one as-is, and a second one after I change

the

password for the DST user 22222222. Then maybe I can find where

the

passwords are stored.

Jim

On Thu, Apr 12, 2012 at 8:42 AM, Jerry C. Adams<

midrange@xxxxxxxx

   wrote:

I'm guessing that the QSECOFR password wasn't included either

when

he

bought
the machine.  A company that I worked for years ago had the

same

problem:

No
QSECOFR password.  But we booted the system into DST and used

either the

22222222 or 11111111 profile to change the password for

QSECOFR.

  That was,

if I remember correctly, a V3 something machine.

Jerry C. Adams
IBM i Programmer/Analyst
Sir, you have tasted two whole worms; you have hissed all my

mystery

lectures and been caught fighting a liar in the quad, you will

leave Oxford

by the next town drain. - Rev. William Spooner
--
A&K Wholesale
Murfreesboro, TN
615-867-5070

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jim

Oberholtzer

Sent: Thursday, April 12, 2012 8:18 AM
To: Midrange Systems Technical Discussion
Subject: Re: Load source on old 9406-720

Your chances of finding the DST password are about the same as

that

of a

snowball inside a blast furnace, not gonna happen.

Use Larry's suggestion and from the console, signed on as

QSECOFR,

issue

the
CHGDSTPWD *DEFAULT  command.

Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


On 4/12/2012 7:31 AM, Roberto José Etcheverry Romero wrote:

If you have 22222222 access you could SEE which disk is the
loadsource, just go to the rackconfig and it will be marked

with *

     From there, take the serial number and just take each

disk.

To aid in your hacking, stop all parity protection (one less

abstraction

layer).

And good luck i doubt the users/pass are stored in plaintext.
You could also dump an op21 and look at the lic code part...

Keep us posted, i'm curious about this.

best regards,

Roberto

On Thu, Apr 12, 2012 at 8:12 AM, DrFranken<

midrange@xxxxxxxxxxxx>

    wrote:

    Well I can tell you it's the top cage, left disk unit,

ALMOST

certainly.

    It's possible that it's the 2nd disk from the left.

    Now on this quest to find the DST Password with a disk
editor...... Yeah  good luck with that.

    I believe they are encrypted, and worse in EBCDIC so

noodling

for

recognizable stuff will be hard.

    Why don't you run CHGDSTPWD and reset the QSECOFR DST

profile

that

way?

         - Larry "DrFranken" Bolhuis

    On 4/12/2012 6:44 AM, Jim Donoghue wrote:

    I have this old 9406-720. It has five drives in the

cage on

the

top left  side (below the control panel), and two in the

cage

below it. How do I find  out which is the load source? I

can

only

access DST with the '22222222'

    user ID. I need to find the load source device so I

can

poke

into it with a  disk editor and hopefully find where the

DST

passwords are stored.

    Thanks,

    Jim

    --

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