Check what your running version is, to see if it's not what you want.
Check the amount of memory and your flash disk space
| Show Version and Memory |
1A01 ! --
1A02 vpn# sh ver
1A03 Cisco Internetwork Operating System Software
1A04 IOS (tm) C2600 Software (C2600-IS-M), Version 12.1(13), RELEASE SOFTWARE (fc3)
1A05 Copyright (c) 1986-2002 by cisco Systems, Inc.
1A06 Compiled Wed 30-Jan-02 22:19 by kellythw
1A07 Image text-base: 0x80008088, data-base: 0x80CED5D8
1A08
1A09 ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
1A10
1A11 vpn uptime is 6 weeks, 2 hours, 40 minutes
1A12 System returned to ROM by reload
1A13 System image file is "flash:c2600-is-mz.121-13.bin"
1A14
1A15 cisco 2620 (MPC860) processor (revision 0x102) with 53248K/12288K bytes of memory.
1A16 Processor board ID JAD04440DOF (1057754228)
1A17 M860 processor: part number 0, mask 49
1A18 Bridging software.
1A19 X.25 software, Version 3.0.0.
1A20 1 Ethernet/IEEE 802.3 interface(s)
1A21 1 FastEthernet/IEEE 802.3 interface(s)
1A22 1 Serial network interface(s)
1A23 32K bytes of non-volatile configuration memory.
1A24 8192K bytes of processor board System flash (Read/Write)
1A25
1A26 Configuration register is 0x2102
1A27
1A28 router#
1A29 router# dir
1A30 Directory of flash:/
1A31
1A32 1 -rw- 7701332 c2600-is-mz.121-13.bin
1A33
1A34 8388608 bytes total (687212 bytes free)
1A35 router#
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download the ios image you need from Cisco's site:
http://www.cisco.com/kobayashi/sw-center/sw-ios.shtml
and store it on a tftp server. Remember that the file will need to be world readable to be able to be downloaded from the
tftp server.
Unfortunatly, the process for uploading the ios is not (yet) the same for all routers that
you will work with. The carrier class routers work like you would imagine. If there is
space on the disk, you can copy the new image to it. Then you tell the router to boot the
new image in the conf.
On "access" routers, (2600's and 3600's) this is not the way it works. Even if you have
a lot of extra disk space, the router is happy only if there is one image on the flash.
If this is a 2600 or 3600 series router, the upload process will delete the current image.
This is true even if there is enough space for more then one image.
The first step will be to upload the new ios image to the router. Since we do not have a backup
image, it's a good idea to double check the new ios image when it's on the router to make
sure that it is ok. Otherwise the router heaves at boot, and you have to reinstall the image
through the serial port (u-g-l-y!).
| Upload IOS |
3A01 ! -- upload the ios image to the router.
3A02 c3640-n3-1# copy tftp://172.22.1.203/software/c3640-ik9s-mz.122-23a.bin flash:
3A03 Destination filename [c3640-ik9s-mz.122-23a.bin]?
3A04 Accessing tftp://172.22.1.203/software/c3640-ik9s-mz.122-23a.bin...
3A05 Erase flash: before copying? [confirm]
3A06 Erasing the flash filesystem will remove all files! Continue? [confirm]
3A07 Erasing device.. eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
3A08 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erased
3A09 Erase of flash: complete
3A10 Loading software/c3640-ik9s-mz.122-23a.bin from 172.22.1.203 (via FastEthernet1/0): !!!
3A11 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
3A12 [OK - 12124536 bytes]
3A13
3A14 Verifying checksum... OK (0x266E)
3A15 12124536 bytes copied in 77.432 secs (156583 bytes/sec)
3A16
3A17 ! -- check the flash disk
3A18 c3640-n3-1# dir
3A19 Directory of flash:/
3A20
3A21 1 -rw- 12124536 May 4 2004 14:37:49 -07:00 c3640-ik9s-mz.122-23a.bin
3A22
3A23 33030144 bytes total (20905544 bytes free)
3A24
3A25 ! -- doublecheck the image
3A26 c3640-n3-1# verify flash:c3640-ik9s-mz.122-23a.bin
3A27 Verified flash:c3640-ik9s-mz.122-23a.bin
3A28 c3640-n3-1#
3A29
|
Once you are sure that the image is correct and working, you will want to set the configs on the router to boot
the new image. Add the new image to the conf, and remove the old one (if there).
| Specify New IOS to Boot |
3B01 ! -- view origional config w/ boot command
3B02 c3640-n3-1# sh run
3B03 Building configuration...
3B04
3B05 Current configuration : 6384 bytes
3B06 !
3B07 ! Last configuration change at 13:53:42 PDT Tue Apr 13 2004
3B08 ! NVRAM config last updated at 13:53:50 PDT Tue Apr 13 2004
3B09 !
3B10 version 12.2
3B11 no service pad
3B12 service timestamps debug datetime msec localtime show-timezone
3B13 service timestamps log datetime msec localtime show-timezone
3B14 service password-encryption
3B5 !
3B16 hostname c3640-n3-1
3B17 !
3B18 boot system flash:c3640-ik9s-mz.121-13.bin
3B19 [...]
3B20
3B21 ! -- re-define boot command
3B22 c3640-n3-1# conf t
3B23 Enter configuration commands, one per line. End with CNTL/Z.
3B24 c3640-n3-1(config)# boot system flash:c3640-ik9s-mz.122-23a.bin
3B25 c3640-n3-1(config)# no boot system flash:c3640-ik9s-mz.121-13.bin
3B26 c3640-n3-1(config)# exit
3B27
3B28 ! -- check work and save
3B29 c3640-n3-1# sh run
3B30 Building configuration...
3B31
3B32 Current configuration : 6384 bytes
3B33 !
3B34 ! Last configuration change at 13:53:42 PDT Tue Apr 13 2004
3B35 ! NVRAM config last updated at 13:53:50 PDT Tue Apr 13 2004
3B36 !
3B37 version 12.2
3B38 no service pad
3B39 service timestamps debug datetime msec localtime show-timezone
3B40 service timestamps log datetime msec localtime show-timezone
3B41 service password-encryption
3B42 !
3B43 hostname c3640-n3-1
3B44 !
3B45 boot system flash:c3640-ik9s-mz.122-23a.bin
3B46 [...]
3B47
3B48 c3640-n3-1# wr mem
3B49 Building configuration...
3B50 [OK]
3B51 c3640-n3-1#
|
Finaly, reboot the router and check to make sure that the new image took.
| Reload and check new loaded OS |
3C01 ! -- Reboot the box and make sure new os takes
3C02 c3640-n3-1# reload
3C03 Proceed with reload? [confirm]
3C04
3C05 [...]
3C06
3C07 System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
3C08 Copyright (c) 1999 by cisco Systems, Inc.
3C09 C3600 processor with 131072 Kbytes of main memory
3C10 Main memory is configured to 64 bit mode with parity disabled
3C11
3C12 program load complete, entry point: 0x80008000, size: 0xb90034
3C13 Self decompressing the image : ##############################################################
3C14 ################################### [OK]
3C15
3C16 [...]
3C17
3C18 Cisco Internetwork Operating System Software
3C19 IOS (tm) 3600 Software (C3640-IK9S-M), Version 12.2(23a), RELEASE SOFTWARE (fc2)
3C20 Copyright (c) 1986-2004 by cisco Systems, Inc.
3C21 Compiled Tue 30-Mar-04 12:14 by kellmill
3C22 Image text-base: 0x60008930, data-base: 0x6129E000
3C23
3C24 [...]
3C25
3C26 cisco 3640 (R4700) processor (revision 0x00) with 126976K/4096K bytes of memory.
3C27 Processor board ID 26853049
3C28 R4700 CPU at 100Mhz, Implementation 33, Rev 1.0
3C29 Bridging software.
3C30 X.25 software, Version 3.0.0.
3C31 SuperLAT software (copyright 1990 by Meridian Technology Corp).
3C32 2 FastEthernet/IEEE 802.3 interface(s)
3C33 DRAM configuration is 64 bits wide with parity disabled.
3C34 125K bytes of non-volatile configuration memory.
3C35 32768K bytes of processor board System flash (Read/Write)
3C36
3C37 Press RETURN to get started!
3C38
3C39 Password:
|
If this is a 7200 series router, then it saves the image to disk if there is enough room. The nice
part about this is that the disk can hold many different images, and you can boot from any of those images.
The bad (sort of) part of this, is now you need to understand how to do disk maintance on the router. (This is
not difficult at all.)
In this section we will look at the disk maintance part, and then refer to the previous section for the
ios uploading, since it is the same for all the routers.
| View and remove Unneeded IOS Image |
3D01 ! -- make sure you know what ios image you are currently running
3D02 c7206-c3-1# sh ver
3D03 Cisco Internetwork Operating System Software
3D04 IOS (tm) 7200 Software (C7200-IS-M), Version 12.1(7a)E1, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
3D05 TAC Support: http://www.cisco.com/cgi-bin/ibld/view.pl?i=support
3D06 Copyright (c) 1986-2001 by cisco Systems, Inc.
3D07 Compiled Tue 08-May-01 10:19 by jamnguye
3D08 Image text-base: 0x60008950, data-base: 0x61134000
3D09
3D10 ROM: System Bootstrap, Version 12.1(20000710:044039) [nlaw-121E_npeb 117], DEVELOPMENT SOFTWARE
3D11 BOOTFLASH: 7200 Software (C7200-KBOOT-M), Version 12.1(8a)E, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
3D12
3D13 c7206-c3-1 uptime is 9 weeks, 5 days, 10 hours, 30 minutes
3D14 System returned to ROM by reload at 00:40:27 UTC Thu Feb 26 2004
3D15 System image file is "disk0:c7200-is-mz.121-7a.E1"
3D16
3D17 cisco 7206VXR (NPE400) processor (revision A) with 245760K/16384K bytes of memory.
3D18 Processor board ID 26789835
3D19 R7000 CPU at 350Mhz, Implementation 39, Rev 3.2, 256KB L2, 4096KB L3 Cache
3D20 6 slot VXR midplane, Version 2.6
3D21
3D22 ! -- And what image is defined for boot in the config
3D23 c7206-c3-1# sh bootvar
3D24 BOOT variable =
3D25 CONFIG_FILE variable does not exist
3D26 BOOTLDR variable does not exist
3D27 Configuration register is 0x102
3D28
3D29 c7206-c3-1#
3D30
3D31 ! -- View the routers disk space
3D32 c7206-c3-1# dir
3D33 Directory of disk0:/
3D34
3D35 3 -rw- 9978880 Dec 26 2001 17:39:12 c7200-is-mz.121-7a.E1
3D36 2440 -rw- 12088204 Feb 11 2002 15:12:22 c7200-ik2s-mz.121-5.T5.bin
3D37
3D38 47890432 bytes total (25817088 bytes free)
3D39
3D40 ! -- delete the unused ios image
3D41 c7206-c3-1# delete disk0:c7200-ik2s-mz.121-5.T5.bin
3D42 Delete filename [c7200-ik2s-mz.121-5.T5.bin]?
3D43 Delete disk0:c7200-ik2s-mz.121-5.T5.bin? [confirm]
3D44 c7206-c3-1# dir
3D45 Directory of disk0:/
3D46
3D47 3 -rw- 9978880 Dec 26 2001 17:39:12 c7200-is-mz.121-7a.E1
3D48
3D49 47890432 bytes total (37908480 bytes free)
3D50
3D51 ! -- "empty the trash"
3D52 c7206-c3-1# squeeze bootflash:
3D53 All deleted files will be removed. Continue? [confirm]
3D54 Squeeze operation may take a while. Continue? [confirm]
3D55
3D56 Squeeze of bootflash complete
3D57 c7206-c3-1#
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Next we need to upload the new ios on to the router. These are the same procedures as the steps above.
First upload the new ios, and then reboot the router.
Last modified by: $Author: chuck $
Last modified on: $Date: 2004/05/06 $
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