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Panic dumps sent to external flash device, Installation steps – Lucent Technologies 9077 16S User Manual

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Configuring the SP Switch Router Adapter

Installing the PCMCIA spinning disk

SP Switch Router Adapter Guide - 1.4 Update 2

October 22, 1999

2-7

Panic dumps sent to external flash device

The mountf and grdump commands enable the grdump program to work with an external
flash device to capture media card dumps.

When a media card panics and there is a formatted external flash device plugged into a
PCMCIA slot, a copy of the dump is automatically saved to the external flash in a directory
called

/var/portcards

.

Installation steps

1

Insert the PCMCIA disk into slot A on the SP Switch Router control board (the thickness
of the 520MB device requires it be installed in slot A).

2

Log in as

root

to the SP Switch Router, start the UNIX shell, and execute these

commands from the shell:

prompt> sh

#

# cd /

# iflash -A

# grsnapshot --dup PA

# mountf -A -w -m /mnt

# mkdir /mnt/crash

# mkdir /mnt/portcards

# cd /var

# mv crash crash.orig

# mv portcards portcards.orig

# ln -s /var/log/portcards /var/portcards

# ln -s /var/log/crash /var/crash

# grsite --perm portcards crash

# cd /var/log

# pax -rw -pe -v . /mnt

# umountf -A

Note:

The grsnapshot --dup command places a copy of the internal flash boot and configuration
files on the spinning disk. Customer Support may use these files to rebuild internal flash if
a problem occurs.

3

Edit the file

/etc/fstab

and add this line as shown in the excerpt below:

/dev/wd2a /var/log ufs rw 0 2 #PCMCIA slot A, use wd3a for B

# Filesystem mount table information. See the fstab(5) man page

# and the /etc/fstab.sample file for more information and examples.

#

# Each line is of the form:

# device mount_point type flags dump fsck_pass

#

# Note that multiple flags (when used) are specified as a

# comma separated list without spaces.

#

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