Hi Vikas,
Thanks for quick reply.
Juniper SSG140, I forgot what was the last OS version.
My last attempt of upgrade was last year I think, and when stuck I just leave it there.
Now I need this router to be installed at site.
If I could recall, the old version of OS maybe 6.2 because I remember I need to updgare the imageket.cer first.
Then, the router rebooted and it stuck.
console the router and this message appears :
Juniper Networks SSG-140 Boot Loader Version 3.2.6 (Checksum: 23062A3A)
Copyright (c) 1997-2006 Juniper Networks, Inc.
Total physical memory: 512MB
Test - Pass
Initialization - Done
Hit any key to run loader
Hit any key to run loader
Hit any key to run loader
Hit any key to run loader
Loading system image "$BABOOT$.BIN" from on-board flash disk...
Done! (size = 12,582,912 bytes)
cksum = cf4f6c84, p_hdr->cksum = 67605d3f
### image corrupted ###
Loading default system image from on-board flash disk...
Done! (size = 12,582,912 bytes)
cksum = e9ae354a, p_hdr->cksum = 67605d3f
### image corrupted ###
thanks.