Upgrade IOS Cisco Router

router#copy tftp flash:
IP source []?
Filename []?
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
router#conf t
router(config)#boot system flash:Filename
router(config)#^z
router#reload

Backup di TRU64UNIX

# vdump -0 -u -f /dev/tape/tape0 /proc

/proc bisa diganti dengan directory yang mau di back up, contohnya :
/usr
/etc
/
dsb