14.1 Introduction to the Boot Process | HP Certified: HP-UX System Administration

The boot process of an HP-9000 server or workstation starts when you power it on or when you reboot a running system. It can be divided into two main parts .

boot ROM startup
HP-UX startup

In the first stage, the boot ROM startup process is carried out. At its completion, it initiates the HP-UX startup process, which is completed in a number of steps. On an abstract level, the boot sequence can be divided into the following steps.

Power on or reboot.
The processor dependent code (PDC) executes and performs self-tests. These tests include memory and CPU tests. The PDC also detects any peripherals attached to the system.
PDC initializes the console to display messages. It looks for the primary boot path for booting the system. The boot path is the hardware path to the disk used as the boot device.
PDC loads and executes the initial system loader (ISL) from the boot path and executes it. At this stage in the startup process, the role of the boot ROM ends.
ISL loads the secondary system loader known as hpux , which resides on the boot area of the disk.
The hpux loads the HP-UX kernel /stand/vmunix into memory and hands control over to the kernel.
The kernel starts the swapper process and then the init process.
The init process reads its initialization file, /etc/inittab , and initializes most of the operating system daemons and processes. It brings the system into an appropriate state and makes it usable for users.

As soon as the init process has completed its tasks , you see a login prompt at the console or at any terminal attached to the system. Part of a sample boot process is shown here.

Primary boot path = 0/2/0.6.0 Alternate boot path = 7/2/0.6.0 Console path = 15/1 Keyboard path = 15/1 [*** Manufacturing (or Debug) Permissions ON ***] System is HP9000/800/V2500 series Processor is starting the autoboot process. To discontinue, press any key within 10 seconds. Device : 0/2/0.6.0 File : hpux Arguments : hpux Loading : hpux ........... 163808 bytes loaded. 102368 + 61440 + 864504 start 0xd01cc0 Boot : disc(0/2/0.6.0;0)/stand/vmunix 6848512 + 1181408 + 6521760 start 0x3a168 5/2/0.8.0.255.1.2.0 sctl Probing epic6 Probe of epic6 complete 6 saga 6/0/0 btlan6 6/1/0 fcT1 6/1/0.5 fcT1_cntl 6/1/0.8 fcp System Console is on SPP DUART0 Interface WARNING: max message size > 65535, adjusting. WARNING: max bytes on msg q > 65535, adjusting. Logical volume 64, 0x3 configured as ROOT Logical volume 64, 0x2 configured as SWAP Logical volume 64, 0x2 configured as DUMP Swap device table: (start & size given in 512-byte blocks) entry 0 - major is 64, minor is 0x2; start = 0, size = 2097152 Starting the STREAMS daemons-phase 1 Checking root file system. file system is clean - log replay is not required Root check done. Create STCP device files Memory Information: physical page size = 4096 bytes, logical page size = 4096 bytes Physical: 16773120 Kbytes, lockable: 12203164 Kbytes, available: 14014856 Kbytes /sbin/ioinitrc: Starting /sbin/ioscan -f 1> /dev/null Starting /sbin/insf -e -C disk 1> /dev/null Done ioscan & insf /sbin/bcheckrc: Checking for LVM volume groups and Activating (if any exist) Volume group "/dev/vg00" has been successfully changed. Resynchronized volume group /dev/vg00 vxfs fsck: sanity check: root file system OK (mounted read/write) (c)Copyright 1983-1997 Hewlett-Packard Co., All Rights Reserved. (c)Copyright 1979, 1980, 1983, 1985-1993 The Regents of the Univ. of California (c)Copyright 1980, 1984, 1986 Novell, Inc. (c)Copyright 1986-1992 Sun Microsystems, Inc. (c)Copyright 1985, 1986, 1988 Massachusetts Institute of Technology (c)Copyright 1989-1993 The Open Software Foundation, Inc. (c)Copyright 1986 Digital Equipment Corp. (c)Copyright 1990 Motorola, Inc. (c)Copyright 1990, 1991, 1992 Cornell University (c)Copyright 1989-1991 The University of Maryland (c)Copyright 1988 Carnegie Mellon University (c)Copyright 1991-1997 Mentat, Inc. (c)Copyright 1996 Morning Star Technologies, Inc. (c)Copyright 1996 Progressive Systems, Inc. (c)Copyright 1997 Isogon Corporation RESTRICTED RIGHTS LEGEND Use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth in sub-paragraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause in DFARS 252.227-7013. Hewlett-Packard Company 3000 Hanover Street Palo Alto, CA 94304 U.S.A. Rights for non-DOD U.S. Government Departments and Agencies are as set forth in FAR 52.227-19(c)(1,2). /sbin/auto_parms: DHCP access is disabled (see /etc/auto_parms.log) HP-UX Start-up in progress __________________________ Configure system crash dumps .............................. OK Mount file systems ........................................ OK Update kernel and loadable modules ........................ N/A Initialize loadable modules ............................... N/A Setting hostname .......................................... OK Set privilege group ....................................... N/A Display date .............................................. N/A Save system crash dump if needed .......................... N/A Enable auxiliary swap space ............................... OK Start syncer daemon ....................................... OK Configure HP Fibre Channel interfaces ..................... OK .......................................................... OK Configure Loopback interfaces (lo0) ....................... OK Start Software Distributor agent daemon ................... OK Configuring all unconfigured software filesets ............ OK Recover editor crash files ................................ OK Clean UUCP ................................................ OK List and/or clear temporary files ......................... OK Clean up old log files .................................... OK Start system message logging daemon ....................... OK Start pty allocator daemon ................................ OK Start network tracing and logging daemon .................. OK Configure HP Ethernet interfaces .......................... OK Configure HP 100BT interfaces ............................. OK Configure HP SPP 100BT interfaces ......................... OK Configure LAN interfaces .................................. OK Start name server daemon .................................. N/A Start NFS core subsystem .................................. OK Start NIS+ server subsystem ............................... OK Start NIS+ client subsystem ............................... OK Start NIS server subsystem ................................ OK Start NIS client subsystem ................................ OK Start NFS client subsystem ................................ OK Start the Trusted Mode with Nis+ subsystem ................ N/A Configure pseudo devices for MAC/LLA access ............... OK Start multicast routing daemon ............................ N/A Start Internet services daemon ............................ OK Start dynamic routing daemon .............................. N/A Start router discover protocol daemon ..................... N/A Configuring PPP Interface ................................. OK Start RARP protocol daemon ................................ N/A Start remote system status daemon ......................... N/A Configuring man pages for Internet Services ............... OK Starting mail daemon ...................................... OK Starting outbound connection daemons for DDFA software .... N/A Start SNMP Master Network Management daemon ............... OK Start OSPF MIB Network Management subAgent ................ N/A Start SNMP HP-UNIX Network Management subAgent ............ OK Start SNMP MIB-2 Network Management subAgent .............. OK Start SNMP Trap Dest Network Management subAgent .......... OK Start DCE daemons ......................................... N/A Start RPC daemon if needed ................................ OK Start the Isogon License Server daemon .................... N/A Start remote boot daemon .................................. OK Starting X Font Server at TCP port 7000 ................... N/A Start vt daemon ........................................... OK Start time synchronization ................................ OK Start accounting .......................................... OK Starting the password/group assist subsystem .............. OK Starting disk array monitor daemons. ...................... OK Start print spooler ....................................... OK Starting HP Distributed Print Service ..................... OK Start clock daemon ........................................ OK Support Tools Informational Fileset ....................... OK Start diagnostic subsystem ................................ OK Starting hardware predictive .............................. OK Start environment monitoring daemon ....................... OK Start auditing subsystem .................................. N/A Start audio server daemon ................................. N/A SAM System administration configuration ................... OK MeasureWare performance software is being started. ........ OK Reinitialize Software Distributor agent daemon ............ OK Starting Event Monitoring Service ......................... OK Start EMS SNMP subagent ................................... OK Start NFS server subsystem ................................ OK Start X print server(s) ................................... N/A Start CDE login server .................................... OK The system is ready. GenericSysName [HP Release B.11.00] (see /etc/issue) Console Login:

In the next sections, you will learn more details on how these tasks are performed.

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