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In IOS boot sequence if the flash is erased, and there is
no access to TFTP server, and we can't load the partial IOS
from ROM. Is there any possiblity that we can still boot
the router/switch from external PC in which the IOS is
installed?
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Answer Posted / jitendera sinha
i am not confrim it is wright or not but letme try amd let
me know i am wright or wrong
1 downlaod a softwair based tfftp server on your computer
like TFTPD32 tftp server
2 downlaod the ios image from internet or if you have
3 pweron the switch
4 press the key break
5 load the downladed ios in that tftp server
6 load that ios from tftp to routr or switches
Follow this procedure if you want to upgrade cisco IOS
NOTE :- Before doing any upgrades plesae take a complete
backup of your cisco device configuration for safer side
Download the Correct version of Cisco IOS for you from here
http://www.cisco.com/tacpage/sw-center/index.shtml
Write Unsaved configurations
ciscorouter# write memory
Building configuration…
[OK]
Check space on Flash Memory
ciscorouter# show flash
Make sure you have the space left on your cisco device.
Backup Startup Configuration
Setup a TFTP server in the same IP range as the Cisco
device to backup the configs, IOS image and also for later
to upload the new IOS image.
testrouter# copy startup-config tftp
Address or name of remote host []? 10.10.10.2
Destination filename [startup-config]?
!!
1278 bytes c opied in 0.100 secs
Backup Current IOS Image
testrouter# copy flash: tftp:
Source filename []? xxxxx-xx-xx.121-x.XB
Address or name of remote host []? 10.10.10.2
Destination filename [xxxxx-xx-xx.121-x.XB]?
Now, Load the new IOS image from the TFTP onto the flash
ciscorouter#copy tftp: flash:
Address or name of remote host []? 10.10.10.2
Source filename []? c3560-ipbasek9-mz.122-40.SE.bin
Destination filename [c3560-ipbasek9-mz.122-40.SE.bin]?
Accessing tftp://10.10.10.2/c3560-ipbasek9-mz.122-40.SE.bin…
Loading c3560-ipbasek9-mz.122-40.SE.bin from 10.10.10.2
(via
Vlan1): !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!
[OK - 8295106 bytes]
8295106 bytes copied in 124.571 secs (66589 bytes/sec)
Now you need to make sure you are booting with the correct
version of IOS image for this you need to use the following
command to set.
testrouter(config)#boot system flash:/c3560-ipbasek9-mz.122-
40.SE.bin
Now you need to reload the Cisco Router
testrouter# reload
After rebooting cisco device with the new Cisco IOS image
you need to make sure this use the following command
testrouter# sh ver
That’s it now we are using the latest IOS on your cisco
device
i donot know it will work or not but try it
try it till then any of the best answer
| Is This Answer Correct ? | 3 Yes | 1 No |
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