topic Re: boot process in Operating System - HP-UX

boot process

Deeos — Tue, 24 Aug 2010 21:33:20 GMT

hi all,

Describe the boot sequence of a hp-ux system ?

Re: boot process

James R. Ferguson — Tue, 24 Aug 2010 22:17:00 GMT

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...

Re: boot process

Raj D. — Wed, 25 Aug 2010 02:55:34 GMT

Deeos,
Couple of more link for your study,
Good Luck,

http://docs.hp.com/en/T1335-90083/ch02s03.html

http://www.unixhub.com/docs/hpux/hpux_boot.html

http://download.intel.com/design/Itanium/Downloads/24535907.pdf

http://www.scribd.com/doc/3241239/Hpux-Boot-Process

Also you can check this,
http://docs.hp.com/en/5990-8144/5990-8144.pdf

Hth,
Raj.

Re: boot process

Kranti Mahmud — Thu, 26 Aug 2010 07:49:47 GMT

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

Re: boot process

Deeos — Tue, 31 Aug 2010 11:36:05 GMT

Thanks Kranti

for your absolute response!

Re: boot process

Deeos — Tue, 31 Aug 2010 11:39:47 GMT

closed