HP Visualize J5000 hp Visualize J5000, J7000 workstations service handbook (a4 - Page 58

Supported Boot Paths, ISL Environment

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Here are examples of mnemonic notation: D boot Enter with "no parameters" selects the primary boot path in stable storage. D boot with the alternate or alt parameter selects the alternate boot path in stable storage. Here is an example of path number notation: D boot p1 Enter attempts to boot from the second path indicated by the search command. Supported Boot Paths SCSI devices are bootable when connected to the FWSCSI port on the System card. Diskless workstations can only boot from the LAN port on the System card. ISL Environment The ISL environment provides the means to load the operating system (HP-UX) environment. The ISL environment also provides an offline platform to execute diagnostic and utility programs from a boot device when HP-UX does not load. The ISL program is the first program loaded into main memory from an external media (LAN, disk, or tape) and launched by the initial program loader (IPL) routine during the Boot Administration environment. The ISL environment provides the following capabilities: D Execute user-entered commands to modify boot device paths and boot options in stable storage. D Run off-line diagnostic programs (TDIAG, IOMAP). D Provide automatic booting of the HP-UX O/S after power-on or reset. The ISL program provides a standalone environment for loading offline diagnostic and utility programs from the LIF directory. The ISL program also provides user commands to configure the boot parameters into Stable Storage. 4-8 Troubleshooting

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4–8
Troubleshooting
Here are examples of mnemonic notation:
D
boot
Enter
with “no parameters” selects the primary boot path in
stable storage.
D
boot
with the
alternate
or
alt
parameter selects the alternate boot path in
stable storage.
Here is an example of path number notation:
D
boot p1
Enter
attempts to boot from the second path indicated by the
search
command.
Supported Boot Paths
SCSI devices are bootable when connected to the FWSCSI port on the System card.
Diskless workstations can only boot from the LAN port on the System card.
ISL Environment
The ISL environment provides the means to load the operating system (HP-UX) en-
vironment. The ISL environment also provides an offline platform to execute diag-
nostic and utility programs from a boot device when HP-UX does not load.
The ISL program is the first program loaded into main memory from an external
media (LAN, disk, or tape) and launched by the initial program loader (IPL) routine
during the Boot Administration environment.
The ISL environment provides the following capabilities:
D
Execute user-entered commands to modify boot device paths and boot op-
tions in stable storage.
D
Run off-line diagnostic programs (TDIAG, IOMAP).
D
Provide automatic booting of the HP-UX O/S after power-on or reset.
The ISL program provides a standalone environment for loading offline diagnostic
and utility programs from the LIF directory. The ISL program also provides user
commands to configure the boot parameters into Stable Storage.