Red Hat ENTERPRISE LINUX WS 2.1 - Guida di Installazione Scaricare il pdf (Pagina 191)

Troubleshooting TopSpin 191

DONE

INDEX

failed, rpc status 15

PANIC: vfs_mountroot: cannot mount root’

you had to check the file (see chapter 12.3.1.3)

/etc/xinetd.d/bootparamd

f) If booting is very slow or hangs at an arbitrary point you might have a hard-

ware problem (see chapter ).

4. To exit the cu program type:

>> ~.Enter (press the keys: tilde, dot, Enter)

12.3.1.8 Running CCU diagnostic tests

1. Open a shell and become root

2. Type cu -lttyS1

→ you will get the prompt

connected and you can see the CCU output:

a) Push the reset button of the CCU

b) Press Control-C to interrupt the boot process

The CCU will be in monitor mode now, the prompt will change to >>

>> setenv bootmode m

c) Push the CCU reset button

The CCU diagnostic tests will start automatically. If one or more diagnostic

tests fail, the CCU could be broken. If they are all passed successfully, your

CCU seems to be okay. The bootmode is automatically set back to its normal

value c.

d) To exit the cu program press:

>> ~.Enter (press the keys: tilde, dot, Enter)

12.3.2 Troubleshooting for AV-III type of spectrometer

There are some differences in troubleshooting AV/AV-II and AV-III type of spec-

trometers. An important difference is, that on AV-III spectrometer is neither tel-

net spect available nor a nfs server necessary. Several hardware units are

connected via ethernet devices and controlled via a DHCP Server. This server

comes with the Diskless installation of the T

OPSPIN DVD. The process is called

dhcpd.

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Red Hat ENTERPRISE LINUX WS 2.1 - Guida di Installazione Pagina 191