[j-nsp] changing CFEB on M7i

Emil Katzarski ekatzarski at gmail.com
Fri Mar 9 10:40:26 EST 2007


Hi,

You probably change the routing engine, not the CFEB. The CFEB has no
HDD and it's placed at the back of the router.

However you probably have problems with the existing file system on
the HDD of the new routing engine. If the new RE had JUNOS 8 installed
and you have JUNOS 7 on the compact flash card you  can not install
it. You need to prepare a compact flash card with a PCMCIA adapter.
Install your version of JUNOS to it using dd tool and install-media
file (from Juniper website) for your version of JUNOS. Then put the
PCMCIA flash card in the slot and REMOVE the internal CF!!!! Boot the
router and follow the instructions on the console. This proces will
format the HDD using the native file system for your version of JUNOS
and will install this JUNOS to the HDD. Then REMOVE the PCMCIA card
and put back in the internal CF card. Boot again from the compact
flash and issue "request system snapshot" command.

On 3/6/07, Mart Norman <mart at manonet.ee> wrote:
> Hello,
>
> I'm quite new with juniper routers and ran into problem last night.
>
> Some days ago disk on CFEB module started erroring and was kicked off from
> bootlist. I added it back and it worked nice after it but i decided to
> change it anyway. Took old CFEB out, moved compact flash to new one and
> put new CFEB in. Unfortunately it didn't boot up. I started to get errors
> like this:
>
> /etc/rc: cannot create /var/etc/rc.ui.defaults.raw: directory nonexistent
> grep: /var/etc/rc.ui.defaults.raw: No such file or directory
> /etc/rc: cannot create /var/etc/rc.ui.defaults: directory nonexistent
> cp: /etc/group: No such file or directory
> cp: /etc/inetd.conf: No such file or directory
> cp: /etc/login.conf: No such file or directory
> cp: /etc/master.passwd: No such file or directory
> cp: /etc/newsyslog.conf: No such file or directory
> mkdir: /var/run: File exists
> Creating initial configuration...mgd: error: could not open database:
> /var/run/db/schema.db: No such file or directory
> mgd: error: Database open failed for file '/var/run/db/schema.db': No such
> file or directory
> mgd: error: could not open database schema: /var/run/db/schema.db
> mgd: error: could not open database schema
> Warning: Commit failed, activating partial configuration.
> Warning: Edit the router configuration to fix these errors.
> cp: /var/run/db/juniper.db: No such file or directory
> Setting initial options:  debugger_on_panic=NO debugger_on_break=NO.
> /etc/rc: cannot create /var/run/dmesg.boot: directory nonexistent
>
> It appears that whole /etc is not on root partition but lot of files are
> linked from /var/etc which resides on disk.
>
> Did i missed something during this change?
>
> thanks in advance,
>
> Mart
>
>
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