How to skip a service while starting in HP-UX

During the HP-UX OS booting,if you want the service/daemon need to be skipped  press crtl + backslash.

Most of us tried pressing ctrl + c, that wont work during the booting

HP-UX Boot process

HP-UX OS Boot Process - PA-RISC Machines

How to list the contents of the EFI directory on hp-ux IPF systems?

First find the default boot device using the setboot command
# setboot
Primary bootpath : 0/4/1/0.0.0.7.0
HA Alternate bootpath : 0/0/2/0
Alternate bootpath : 0/4/1/0.0.0.6.0
Autoboot is ON (enabled)#


Find the corresponding dirver for the Hardware path using ioscan
# ioscan -funC disk

disk 39 0/4/1/0.0.0.6.0 sdisk CLAIMED DEVICE HP DG146ABAB4
/dev/dsk/c17t6d0 /dev/dsk/c17t6d0s2 /dev/rdsk/c17t6d0 /dev/rdsk/c17t6d0s2
/dev/dsk/c17t6d0s1 /dev/dsk/c17t6d0s3 /dev/rdsk/c17t6d0s1 /dev/rdsk/c17t6d0s3
disk 40 0/4/1/0.0.0.7.0 sdisk CLAIMED DEVICE HP DG146ABAB4
/dev/dsk/c17t7d0 /dev/dsk/c17t7d0s2 /dev/rdsk/c17t7d0 /dev/rdsk/c17t7d0s2
/dev/dsk/c17t7d0s1 /dev/dsk/c17t7d0s3 /dev/rdsk/c17t7d0s1 /dev/rdsk/c17t7d0s3
#


List the contents of EFI shell.This can be useful to compare root and root mirror disks.

# lifls -l /dev/rdsk/c17t7d0s2
volume ISL10 data size 7984 directory size 8 06/10/27 14:23:07
filename type start size implement created
===============================================================
ISL -12800 584 242 0 06/10/27 14:23:07
AUTO -12289 832 1 0 06/10/27 14:23:07
HPUX -12928 840 1024 0 06/10/27 14:23:07
PAD -12290 1864 1468 0 06/10/27 14:23:07
LABEL BIN 3336 8 0 08/07/01 05:19:23#

Raw devices & Block devices

Most of the people will get confused when to use /dev/dsk/c0t1d0s7 and /dev/rdsk/c0t1d0s7 device files.

Generally /dev/dsk is a block disk device whereas /dev/rdsk is a character disk device

As a thumb rule raw devices are used before filesystem creation.Block devices are user after filesystem creation.

E.g., In Solaris whenever you create a new slice using format command a raw physical slice or a Raw Device will be created which is addressed as /dev/rdsk/c#t#d#s#
After formatting it with newfs command the slice will be addressed as /dev/dsk/c#t#d#s# which can now be used for mounting.

newfs /dev/rdsk/c0t1d0s4
mkdir /oracle
mount /dev/dsk/c0t1d0s4 /oracle

After mounting /dev/dsk/c#t#d#s# is called as Block Device

Steps to Configure IP for MP-Port in HP Servers

Step 1: Connect a terminal to the console port of the system.

Step 2: Login tothe console using username and password. The default username for MP is typically Admin and the default
password is Admin.

Step 3: Type “cm” on the MP prompt to go to the MP command menu

Step 4: Type “lc” on the MP CM prompt to modify the LAN configuration and press “A” when prompted for modification

Current LAN Configuration:
- - MAC Address : 0x001635b66433
D - DHCP Status : Disabled
I - IP Address : ---------------
M - MP Host Name: ---------------
S - Subnet Mask : ---------------
G - Gateway Address : ------------
L - Link State : Auto Negotiate
W - Web Console Port Number : 2023
- - SSH Access Port Number : - (MP Feature Not Licensed)
- - IPMI / LAN Port Number : 623A

Enter parameter(s) to change, A to modify All, or [Q] to Quit:

Step 5: Type the IP address of the MP port.

IP Address:
Current ->
127.0.0.1 (default)

Modifying this parameter will cause all present LAN and Web connections to be dropped.

Enter new value, or Q to Quit: 172.16.1.100

Step 6: Type the hostname of the MP port.

Host Name:
Current ->
mp001635b66433 (default)

Enter new value, or Q to Quit: m1sys100

Step 7: Type the Subnet Mask of the MP port.

Subnet Mask:
Current ->
255.255.255.0 (default)

Modifying this parameter will cause all present LAN and Web connections to be dropped.

Enter new value, or Q to Quit: 255.255.224.0

Step 8: Type the Gateway of the MP port.

Gateway Address:
Current ->
127.0.0.1 (default)

Enter new value, or Q to Quit: 172.16.0.1

Step 9: Press “Enter” when prompted for Web Console Port Number.

Web Console Port Number:
Current -> 2023 (default)
Options: 23, 2000 to 2400

Modifying Web Port number will cause all present Web connections to be dropped.

Enter new value, or Q to Quit:

-> Current Web Console Port Number has been retained

Step 10: Press “Enter” when prompted for SSH Console Port Number.

SSH Console Port Number:
Current -> 22 (default)
Options: 22, 2000 to 2400

Enter new value, or Q to Quit:

-> Current SSH Console Port Number has been retained

Step 11: Type “Disabled” or “D” when prompted for DHCP Status.

DHCP Status:
Current -> D - Disabled
E - Enabled (default)

Modifying this parameter will cause all present LAN and Web connections to be dropped.

Enter new value, or Q to Quit: Disabled

Step 12: Press “Enter” when prompted for Link State.

Link State:
Current -> A - Auto Negotiate (default)
T - 10BaseT

Modifying this parameter will cause all present LAN and Web connections to be dropped.

Enter new value, or Q to Quit:

-> Current Link State has been retained

Step 13: Type “xd” on the MP CM prompt and press “r” to reset MP.

Step 14: From any of the lab machines, ping to the newly configured IP address of the GSP and see if it is alive on the
network.

HP-UX: Patch naming convention

A patch name consists of the characters "PH" (Patch HP-UX), followed by a two-character type-identifier, followed by an underscore,
followed by a four or five-digit number.

The currently defined patch types are:

CO - COmmands & libraries
KL - KerneL
NE - NEtworking
SS - SubSystems

An example name of a Kernel patch name would be "PHKL_23507"

Kernel patches always require a system reboot, so that the newly updated kernel can be loaded. Many Networking patches (PHNE*) also
make modifications to the kernel, and hence require a reboot.

Note that the numerical portion of any given patch name is unique, among ALL patches.

So there would never be a patch named "PHCO_23507", in addition to a patch named "PHKL_23507." This lends itself nicely to
grepping for a particular patch (ie - to see if "PHKL_23507" is installed, one could use "swlist -l product | grep 23507"

HP-UX: Intro Guardian Service Processor(GSP) & Management Processor(MP)

All of HP's current PA-RISC and Integrity servers include a GSP/MP card which has a LAN console port.

This console port is usually called as GSP/MP port which depends on which card(GSP/MP) is installed in the physical machine.But mostly these days MP card is installed on HP-UX Servers by default.

Features:

* Enables remote server management over the web regardless of the system state.
* In the unlikely event that the operating system in not running,the GSP/MP port can be accessed to power cycle the server,view event logs and status logs,enable console re-direction,and more.
* Always-on capability: GSP/MP is alive if the power cord is plugged in.
* User/Password access control: Supports operator and administrator users
* Multiple access methods to GSP/MP:
Local port
Remote/modem port
LAN

*Mirrored console:System console output stream is reflected to all of the connected console users
*Display and/or logging of:

The system console,system event logs (chassis codes),Virtual Front Panel (VFP),and system power and configuration status.
*GSP/MP provides power control,system reset,and Transfer Of Control (TOC) capabilities.

Note: This GSP/MP is similar to Oracle Sun™ Advanced Lights Out Manager (ALOM)