Boot Flags; Changing Boot Parameters - Oracle Netra Server X5-2 Installation Manual

Boot Parameter
Console Device
Console Baud Rate
Other

Boot Flags

Boot flags enable system boot behavior(s). The user can set a single flag, or add hex
digits to set multiple flags.
• 0x00000008 Bootloader ~7 seconds countdown
• 0x00000040 Autoconfigure wancom0 via DHCP enable - VM platforms only
• 0x00000080 Use TFTP protocol (instead of FTP) enable - VM platforms only
• 0x00000100 Bootloader ~1 seconds quick countdown - VM platforms only
The following boot flags should only be used as directed by Oracle support:
• 0x00000001 acme.ko network module security override
• 0x00000002 Kernel debug enable
• 0x00000004 Crashdump disable
• 0x00000010 Debug sshd enable
• 0x00000020 Debug console enable getty
• 0x00001000 Userspace debug enable
• 0x00100000 Uniprocessor enable (SMP disable)
• 0x20000000 Fail-safe boot enable
• 0x40000000 Process startup disable (flatspin mode)
Never enter any other values without the direction of Oracle support. Some diagnostic
flags are not intended for normal system operation.

Changing Boot Parameters

You can access and edit boot parameters by using either the ACLI or by interrupting
the system boot process.
Note:
Changes to boot parameters do not go into effect until you reboot the
system.
Description
Serial output device type, dependent on platform. COM1 applies to
virtual serial consoles, VGA to virtual video console. VGA is the
default on VMware and KVM. COM1 is the default on OVM .
The speed in bits per second which the console port operates at. It
operates at 115200 BPS, 8 data bits, no stop bit, parity NONE.
Allows miscellaneous and deployment-specific boot settings.
Chapter 8
Changing Boot Parameters
8-4