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How do I boot from (make_recovery) tape ?

Marco Varenkamp
Occasional Advisor

How do I boot from (make_recovery) tape ?

Hello,
using
make_recovery -A -c -V -i
I produced a bootable tape from my HP-UX 11.00 System.
How can I boot from it?
I thought, it would work by stopping the boot, searching boot devices (sea) and then selecting the tape.
But 'sea' does not find the tape?!
Thanks in advance!
Marco
17 REPLIES
Rainer von Bongartz
Honored Contributor

Re: How do I boot from (make_recovery) tape ?

Your thoughts are correct; (sea) should find your tape device.

Sequential Media will be the tape. Try looking for this again

Regards
Rainer
He's a real UNIX Man, sitting in his UNIX LAN making all his UNIX plans for nobody ...
John Waller
Esteemed Contributor

Re: How do I boot from (make_recovery) tape ?

Depending on the type of hardware you could try to manually work out the hardware path of the tape drive, then when you interupt the boot sequence and it asks for a boot device inter the path e.g 8/16/5.0

As a second bit if advice, when it asks to "interact with IPL" , enter No, its a pain to get the boot command correct otherwise.
Marco Varenkamp
Occasional Advisor

Re: How do I boot from (make_recovery) tape ?

Hello Rainer,
the only bootable device sea finds is the hard disc (FWSCSI.6.0.)
Unfortunately there is nothing to choose ...
Regards
Marco
Praveen Bezawada
Respected Contributor

Re: How do I boot from (make_recovery) tape ?

Hi
You are right,

Stop the boot sequence
Search for the bootable devices
Boot from sequential media ( with tape placed in drive ofcourse)
'No' at interact with IPL

...BPK...

Sridhar Bhaskarla
Honored Contributor

Re: How do I boot from (make_recovery) tape ?

Are you trying to ignite the box on which you created the recovery tape?. If so, there is no reason why it shouldn't show up the tape "sequential media" unless if the cables are distrubed or the scsi id got changed.

What is the model of your system?

-Sri
You may be disappointed if you fail, but you are doomed if you don't try
Marco Varenkamp
Occasional Advisor

Re: How do I boot from (make_recovery) tape ?

Hi Praveen,
the tape is in the drive.

I have written the tape yesterday on the same WS (C3700), and since then I haven't changed anything ...
Marco Varenkamp
Occasional Advisor

Re: How do I boot from (make_recovery) tape ?

Hi John,
I've tried to use the hardware path of the tape, but unfortunately it could not be found.
It seems to me, that the system does not search the tape as a bootable device at all...
Sridhar Bhaskarla
Honored Contributor

Re: How do I boot from (make_recovery) tape ?

Marco,

Did you try with sea ipl?

-Sri
You may be disappointed if you fail, but you are doomed if you don't try
Paula J Frazer-Campbell
Honored Contributor

Re: How do I boot from (make_recovery) tape ?

Hi Marco

Fire up your machine normally and do an ioscan -fnC tape and make an note of the hardware path.

Reboot - stop the process and do a "sea" - do not interact with ipl.

then try booting using the H/W path.

HTH

Paula
If you can spell SysAdmin then you is one - anon
Sridhar Bhaskarla
Honored Contributor

Re: How do I boot from (make_recovery) tape ?

I think you need to verify if the tape was created successfully as you are not able to find the boot area on it.

I assume your system is still up and running.
As you used C option, do a quick check by running check_recovery.

Also you can find out if the boot area is properly copied on the tape by using copy_boot_tape

#/opt/ignite/bin/copy_boot_tape -u /dev/rmt/??n -b -d /your_directory

This should successfully dump the boot area called boot_image in your_directory

Also verify if everything is fine on the tape by doing

#mt -t /dev/rmt/0mn fsf 1
#tar tvf /dev/rmt/0mn

If everything is fine, then the system shouldn't have any problem finding it as a bootable media.

-Sri
You may be disappointed if you fail, but you are doomed if you don't try
Marco Varenkamp
Occasional Advisor

Re: How do I boot from (make_recovery) tape ?

Hi Sridar,
I've checked the tape. I think the tape is fine. (I have attached a log file of the copy_boot_tape command)
The tar archive could be read also.

The tape device I use is a HP6400/2000.
Is it possible that it is not compatible?
regards
Marco
John Waller
Esteemed Contributor

Re: How do I boot from (make_recovery) tape ?

Marco,

Searching through the HP site I found a previous question regarding connecting a HP6400 Tape drive to a C110 workstation. It mentioned that the HP6400 was a FWSCSI tape drive. If this is the case then you may have a problem that the F/W interface is not initialised at system startup so will not support any drives connected as bootable devices. This is only a guess, but perhaps somebody with a bether hardware knoledge of the HP6400 or the C3700 Work Station can confirm / deny this theory.
Sachin Patel
Honored Contributor

Re: How do I boot from (make_recovery) tape ?

Hi Marco,
your dirve is FW-SCSI. Are you sure you have hook up that drive on correct (FW) port?

Sachin
Is photography a hobby or another way to spend $
John Bolene
Honored Contributor

Re: How do I boot from (make_recovery) tape ?

Could be true.

We only use single-ended drives as we found that the FW drives could not be booted from.

Never figured out why, just found out what works and went with that solution.
It is always a good day when you are launching rockets! http://tripolioklahoma.org, Mostly Missiles http://mostlymissiles.com
Sridhar Bhaskarla
Honored Contributor

Re: How do I boot from (make_recovery) tape ?

OK. I think this should be a firmware compatibiity issue where FW drives cannot be recognized. Since the tape has been successfully verified, I would suggest to try with a SingleEnded scsi drive if you have the interface.

-Sri
You may be disappointed if you fail, but you are doomed if you don't try
Hendrik Schade
Occasional Advisor

Re: How do I boot from (make_recovery) tape ?

Hello,

yes you are right, that's the way you boot from a tape device. The "sea" command should show you all scsi devices like disks, cd-drives and tape drives independent on the fact that they contain really boot medias. That means if the "sea" doesn't find your tape it seems to be a hardware problem and has nothing to do with the contents of the recovery tape. So you should check the SCSI connection, the tape drive itself, etc.

Hendrik
Marco Varenkamp
Occasional Advisor

Re: How do I boot from (make_recovery) tape ?

Hi,
the tape is a single-ended one.
I think that there is a hardware problem...