Device numbering

[Larry Basford]

How can I set the tape drive back to 0 for my 4mm and 1 for my DLT?
I am moving a Lawson system from a D380 to a K370. ( yea I know ) I booted the D's recovery tape to setup the K.
Now my DLT is /dev/rmt/2m and 4mm is /dev/rmt/3m
Also predictive setup /dev/cul2p7
not /dev/cul0p7 like on my other K's

[MANOJ SRIVASTAVA]

Hi Larry

Please go the /dev/rmt directory and note down the major and minor nos for both the devices . Delete the associated device files and then recreate is using mknod command by interchanging the major/minor for one with the major /minor of the other. This should do the trick.


Manoj Srivastava

[Larry Basford]

What I need
# ioscan -f|grep tape
tape 0 10/4/8.6.0 tape2 CLAIMED DEVICE DEC DLT2000 15/30 GB
tape 1 10/12/5.0.0 stape CLAIMED DEVICE HP HP35480A


what I get
# ioscan -f|grep tape
tape 2 10/4/8.6.0 tape2 CLAIMED DEVICE DEC DLT2000 15/30 GB
tape 3 10/12/5.0.0 stape CLAIMED DEVICE HP HP35480A

[Juan González · Accepted solution]

Hi Larry,
the X in /dev/rmt/Xm matches with the instance number of the tape device, so it's which you have to change.
It's no easy.I append an example of how to do it.

Best regards
JGM

[Carlos Fernandez Riera]

Juan:

changing ioinit is very usefull in other ciscustances.
I think taht for this question is enough with ( see duplicated question):http://forums.itrc.hp.com/cm/QuestionAnswer/1,1150,0x55a7ee3e323bd5118fef0090279cd0f9,00.html