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Cisco IOS

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, IOS Cisco. IOS , , .

, , IOS , show version

Router#show version 
Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(15)T1, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Wed 18-Jul-07 06:21 by pt_rel_team
ROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Copyright (c) 2000 by cisco Systems, Inc.

, 12.4.(15)T1. IOS .

cisco.com .

IOS

flash , IOS, show flash.

Router#show flash
System flash directory:
File  Length   Name/status
  3   50938004 c2800nm-advipservicesk9-mz.124-15.T1.bin
  2   28282    sigdef-category.xml
  1   227537   sigdef-default.xml
[51193823 bytes used, 12822561 available, 64016384 total]
63488K bytes of processor board System flash (Read/Write)

, IOS - c2800nm-advipservicesk9-mz.124-15.T1.bin 50 64, 12 flash . , . delete /force /recursive flash:_.

Router# delete /force /recursive flash:c2800nm-advipservicesk9-mz.124-15.T1.bin

IOS TFTP FTP . copy [] [] . IP TFTP , . 

Router#copy tftp: flash:
>Address or name of remote host []? 192.168.1.2
>Source filename []? c2800nm-advipservicesk9-mz.151-4.m12a.bin
>Destination filename [c2800nm-advipservicesk9-mz.151-4.m12a.bin]?
Accessing tftp://192.168.1.2/ c2800nm-advipservicesk9-mz.151-4.m12a.bin
Loading c2800nm-advipservicesk9-mz.151-4.m12a.bin from 192.168.1.2 (via FastEthernet0/0):
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

dir flash

Router#dir flash
Directory of flash:/
    3  -rw-     50938004            c2800nm-advipservicesk9-mz.151-4.m12a.bin
    2  -rw-       28282            sigdef-category.xml
    1  -rw-      227537            sigdef-default.xml
64016384 bytes total (58188981 bytes free)

, MD5 , , Cisco. 

Router#verify /md5 flash:c2800nm-adventerprisek9-mz.151-4.M12a.bin
.................Done!
verify /md5 (flash:c2800nm-adventerprisek9-mz.151-4.M12a.bin) = fcdaeb55b292534e97ecc29a394d35aa

flash IOS, boot system .

Router(config)#boot system flash:c2800nm-adventerprisek9-mz.151-4.M12a.bin

reload, . show version System image file is.

System image file is "flash:c2800nm-adventerprisek9-mz.151-4.M12a.bin"

IOS, , .

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