booted Upgrade the bootflash or bootselector image using the currently 
running FTOS image.
file-url
Enter the following location keywords and information to upgrade 
using an FTOS image other than the one currently running:
• for an internal flash, enter 
flash:// file-path/filename
• for an FTP server, enter 
ftp:// user:password@hostip/filepath
• for an external flash on the primary RPM, enter 
slot0://file-
path/filename
• for a TFTP server, enter 
tftp://hostip/filepath/filename
 where 
hostip is either an IPv4 dotted decimal address or an IPv6 URI 
[x:x:x:x::x] format address.
Defaults If no URL is specified, FTOS uses the boot flash image that was packed with it.
Command Modes EXEC Privilege
Command History
Version 7.7.1.0 Introduced the system-image option.
Version 7.5.1.0 Introduced on the C-Series.
E-Series Original command
Usage 
Information
RFC 3986 specifies that IPv6 host addresses in a uniform resource identifier (URI) should be 
enclosed in square brackets, [X:X:X:X::X]. For maximum flexibility, this command accepts IPv6 
host addresses with or without the square brackets.
A system message appears stating the Bootflash upgrade status. Reload the system to boot 
from the upgraded boot images.
After the URL is specified, you can use the same downloaded image for upgrading an individual 
RPM, line cards, SFM FPGA, and system-image for cache-boot without specifying the file-url 
again using the command upgrade {bootflash-image | bootselector-image | 
system-image
} {all | linecard linecard-slot | rpm}. After 20 minutes, the 
cached memory is released and returned for general use, but the URL is maintained and you do 
not have to specify it for subsequent upgrades.
Related 
Commands
upgrade fpga-image – upgrades the FPGA version in the specified E-Series SFM.
boot system – displays the configured boot image information.
upgrade (E-Series version)
Upgrade the bootflash, boot selector, or system image on a processor.
E-Series
Syntax
upgrade {bootflash-image | bootselector-image | system-image} 
{all | linecard linecard-slot | rpm} {booted | file-url}
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