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тАО09-18-2002 11:29 AM
тАО09-18-2002 11:29 AM
Admin Guide ok but how does HP-LX exactly boot ?
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тАО09-18-2002 02:08 PM
тАО09-18-2002 02:08 PM
Re: Admin Guide ok but how does HP-LX exactly boot ?
As far as I remember for my last HP-LX course, the boot sequence is very closed to normal RH.
Here are the differences :
=> The kernel that is loaded has been modified in order to manage compartment and enhanced access control features.
=> That HP-LX specific kernel loads /sbin/init, which has been customized by HP to understand new keywords in /etc/inittab, such as t_wait and t_respawn. Processes started using this feature are able to deal with HP-LX new compartment management features and access rules.
You may know that when you choose load the "normal" kernel at LILO prompt, the /sbin/init-tlx is loaded. This special "init" has been modified to behave as the "normal" linux init process. Therefore, it treats t_respawn and t_wait as "normal" respawn and wait.
Good luck.
Kodjo
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тАО10-04-2002 02:33 AM
тАО10-04-2002 02:33 AM
Re: Admin Guide ok but how does HP-LX exactly boot ?
The modified kernel actually execs /sbin/init-tlx. init-tlx is the modified init. The reason that the "normal" kernel is booted and told to use init-tlx is because of the t_wait, t_respwan as you mentioned. If the regular /sbin/init was run, it would complain that it does not understand t_respawn and t_wait.
That is the biggest difference to the boot sequence. To follow what happens next, have a look at /etc/inittab. It exec's a few rc scripts that are specific to HPLX.
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тАО10-04-2002 11:56 AM
тАО10-04-2002 11:56 AM
Re: Admin Guide ok but how does HP-LX exactly boot ?
Here is my /etc/lilo.conf :
image = /boot/tlinux-2.4.9-31-hptl1.5
label = tlinux
root = /dev/hda3
read-only
image = /boot/vmlinuz-2.4.2-2
label = linux
root = /dev/hda3
append = "init=/sbin/init-tlx"
read-only
That's why I say tlinux kernel uses /sbin/init and normal linux uses /sbin/init-tlx.
Regards.
Kodjo
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тАО12-12-2002 09:48 AM
тАО12-12-2002 09:48 AM
Re: Admin Guide ok but how does HP-LX exactly boot ?
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО12-14-2002 02:00 AM
тАО12-14-2002 02:00 AM
Re: Admin Guide ok but how does HP-LX exactly boot ?
Kodjo