Difference between revisions of "Upgrading IOS Version"
From Peter Pap's Technowiki
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| − | 3. If there is room, leave the old image in place. <font color=red>'''OPTIONAL and DANGEROUS'''</font> | + | 3. If there is room, leave the old image in place. Otherwise do <font color=red>'''OPTIONAL and DANGEROUS'''</font>: |
switch# delete flash:imagename | switch# delete flash:imagename | ||
| + | |||
| + | If the flash image is in a directory: | ||
| + | |||
| + | switch# delete /force /recursive flash:flashdirectory | ||
4. Upload the new flashimage | 4. Upload the new flashimage | ||
Revision as of 02:52, 23 November 2011
You will need a tftp server on which to put the latest IOS version and to which to can backup the old one. A Windows based one is easy [1]. This assumes that the switch already has an IP set, otherwise follow this link [2].
1. Determine the boot image on the switch:
switch# show flash
2. Backup the flash image to the tftp server
switch# copy flash:flashimagename tftp://192.168.X.X/flashimagename
where 192.168.X.X is the IP address of the TFTP server.
3. If there is room, leave the old image in place. Otherwise do OPTIONAL and DANGEROUS:
switch# delete flash:imagename
If the flash image is in a directory:
switch# delete /force /recursive flash:flashdirectory
4. Upload the new flashimage
switch# copy tftp://192.168.X.X/newflashimage flash:newflashimage
5. Make the new image the boot image and reboot
switch# config t switch(config)# no boot system flash:oldflashimage switch(config)# boot system flash:newflashimage switch(config)# exit switch# wr mem
6. Reboot the switch
switch# reload
