[j-nsp] Problem with boot after JunOS upgrade (7.5 -> 8.1R3.3)

[Yevgeniy Voloshin]

Hi Group,

I have a problem with boot on M7i after upgrade JunOS:
 request system software validate /var/tmp/jinstall-
8.1R3.3-export-signed.tgz
 request system software add /var/tmp/jinstall-8.1R3.3-export-signed.tgzreboot

JunOS validation was OK, and after the reboot it didn't come up. Console
messages show cyclic reboot by watchdog timeout.
Only this console port connection is available. How to recover this under
such a constraints?

No /kernel
>> FreeBSD/i386 BOOT
Default: 0:ad(0,a)/kernel
boot: H



Award Modular BIOS v4.51PG, An Energy Star Ally
Copyright (C) 1984-98, Award Software, Inc.

BIOS Version 1.8
09/18/2003-i440BX-SMC67X-2A69TU00C-00


WARNING: History show a reset caused by the WatchDog
Will try to boot from :
PCMCIA ATA Flash Card
Compact Flash
Primary IDE Hard Disk
Ethernet

Trying to Boot from Ethernet

Intel UNDI, PXE-2.0 (build 078)
Copyright (C) 1997,1998,1999 Intel Corporation
PXE-E61: Media test failure, check cable
PXE-M0F: Exiting Intel PXE ROM.

Trying to Boot from PCMCIA ATA Flash Card
Trying to Boot from Compact Flash

Trying to Boot from Primary IDE Hard Disk
Loading /boot/loader
No /boot/loader, next boot from alternate path
Loading /cf/boot/loader
No /cf/boot/loader
>> FreeBSD/i386 BOOT
Default: 0:ad(0,a)/kernel
boot: ;1R


TIA!
---
Yev.