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boot process

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Deeos
Regular Advisor

boot process

hi all,

Describe the boot sequence of a hp-ux system ?
Deepak
5 REPLIES
James R. Ferguson
Acclaimed Contributor

Re: boot process

Hi:

Given the number of unrelated questions you have posed today, I'd say you were studying for a certification. This forum is not intended as that vehicle. I suggest you avail yourself of docs.hp.com and/or Asghar Ghori's certification book:

"HP-UX: HP Certification Systems Administrator, Exam HP0-A01 - Training Guide and Administrator's Reference, 3rd Edition by Asghar Ghori"

http://www.amazon.com/HP-UX-Certification-Administrator-Administrators-Reference/dp/1606436546/ref=sr_1_1?ie=UTF8&s=books&qid=1275302958&sr=8-1

The first suggestion is free, too.

...JRF...

...JRF...
Raj D.
Honored Contributor

Re: boot process

Kranti Mahmud
Honored Contributor
Solution

Re: boot process

Hi Deeos,

Boot Sequence:
1. Poweron.
2. PDC Activates and checks for cpu and memory and other peripheral connected to it.
3. Checks if AUTOBOOT Flag is on. If yes , its try to locate the Primary boot path, and loads Initial system loader , from Primary boot path.
4. ISL Loads the secondery loader called hp-ux.
5. hpux loads the kernel /stand/vmunix
6. kernel starts first process swapper , and then init
7. Shell /sbin/pre_init_rc executes
8. init locates /etc/inittab
9. /etc/inittab starts the system the default run level , mentioned with "initdefault" parameter.
10. Then executes /sbin/bcheckrc and activates LVM ,

It does following:

1. activates LVM (if appplicable).
2. runs eisa_config in automatic mode
3. checks the file systems before mounting
4. checking reside in /sbin/fs//bcheckrc)
5. mounting any file systems.
6. It checks for the file /sbin/lvmrc and , /etc/lvmrc activates the LVM , if AUTO_VG_ACTIVATE=1 mentioned.
7. Then it spawns getty process , cons:123456:respawn:/usr/sbin/getty console console

And it gives login : prompt.


Rgds-Kranti
Dont look BACK as U will miss something INFRONT!
Deeos
Regular Advisor

Re: boot process

Thanks Kranti

for your absolute response!

Deepak
Deeos
Regular Advisor

Re: boot process

closed
Deepak