Yes, that is the procedure. You need to have a valid service contract
with Juniper to download the Install Media. If you do, then go to the
Software Download area of the JTAC website and select the JUNOS link.
In there, you should be presented with several options, one of which is
the Install Media.
-evt
________________________________
From: Yevgeniy Voloshin [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 10, 2007 9:24 AM
To: Eric Van Tol
Subject: Re: [j-nsp] Problem with boot after JunOS upgrade (7.5
-> 8.1R3.3)
Dear Eric,
Yevgeniy, is there any way you can do a fully clean
install with the PCMCIA card using the Install Media JUNOS version?
Do You mean Recipe 1.24 from JUNOS Cookbook By Aviva Garrett -
Creating an Emergency Boot Disk?
Problem
You want to create a boot disk to use in an emergency if the
software and filesystems on the router become so damaged that you just
want to reconfigure the router from scratch.
Solution
Create a PCMCIA boot flash card that contains the JUNOS install
media. First, copy the install media from the JUNOS software download
page on the Juniper Networks support site (
http://www.juniper.net/support). On M-series and T-series routers, copy
this file to the router's /var/tmp directory. Then, insert a PC card
into the router's drive and copy the install media to the PC card:
[EMAIL PROTECTED]> start shell
[EMAIL PROTECTED] cd /var/tmp
[EMAIL PROTECTED] su
[EMAIL PROTECTED]
dd if=/dev/zero of=/dev/rad3 count=20
[EMAIL PROTECTED] dd if=install-media-7.4R1.7-domestic of=/dev/rad3
bs=64k
To create a boot flash card for a J-series router, copy the
install media to a Windows or Unix PC and uncompress it with gzip or
WinZip. Connect a PCMCIA adapter or USB card reader to the PC and insert
a compact flash card into the device. On a Unix PC, use the following
commands to copy the image to the compact flash:
[EMAIL PROTECTED] dd if=junos-jseries-7.4R1.7-export-cf256.
of=/dev/hde
250368+0 records in
250368+0 records out
On a Windows XP or Windows 2000 PC, use either the Norton Ghost
utility or the dd command shown previously.
Discussion
One of the tasks you can do to prepare for router disaster
recovery is to create an emergency PCMCIA boot media. This is a bootable
media that contains an image of a specific JUNOS software release. When
you boot the router from this media, it installs the complete router
from scratch, first doing a full reformat of the hard disk and flash,
then completing a full new install of all the JUNOS software.
Use the PCMCIA boot media in disaster recovery when a router is
hosed and you need to execute a complete reinstall from scratch. To boot
from this media, the PCMCIA must first be inserted into the slot on the
Routing Engine. When the router boots, the first thing it looks for is a
PCMCIA in the slot. If it's not there, it moves on to the flash drive.
If the PCMCIA is there, the router stops and waits for a user with
console access to the router to press Enter to continue. The router does
not automatically execute the reformat and reinstallation; you must tell
it to do so. That way, if someone inserts the PCMCIA in the slot by
mistake, the router doesn't format and reinstall when you didn't plan
for it to do so.
The J-series router follows the same procedure but uses a
compact flash card instead of a PCMCIA card. This recipe shows the
commands to use for a 256-MB compact flash.J-series install media are
also available for other sizes, including 128, 512, and 1,024 MB.
See Also
Juniper Networks web site (http://www.juniper.net/support)
If so, I do not have any idea how I can get 'JUNOS install
media'. What is it?
What types of PCMCIA card supproted on M7i, how I must format
this PCMCIA card, e.t.c.
Thanks!
---
Yev.
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