Difference between revisions of "Upgrading IOS Version"
From Peter Pap's Technowiki
(Created page with "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 [http://tftpd32.jounin.net/]. This assume...") |
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| − | 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 [http://tftpd32.jounin.net/]. This assumes that the switch already has an IP set. | + | 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 [http://tftpd32.jounin.net/]. This assumes that the switch already has an IP set, otherwise follow this link [http://www.peterpap.net/index.php/Assigning_an_IP_Address_to_a_Switch]. |
1. Determine the boot image on the switch: | 1. Determine the boot image on the switch: | ||
| − | switch# show flash | + | switch# show flash |
| − | + | 2. Backup the flash image to the tftp server | |
| − | switch# copy flash:flashimagename tftp:// | + | 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. <font color=red>'''OPTIONAL and DANGEROUS'''</font> Otherwise do: | |
| − | switch# | + | switch# delete flashimagename |
| − | + | 4. Upload the new flashimage | |
| − | switch# config t | + | switch# copy tftp://192.168.X.X/newflashimage flash:newflashimage |
| − | switch(config)# no boot system flash:oldflashimage | + | |
| − | switch(config)# boot system flash:newflashimage | + | 5. Make the new image the boot image and reboot |
| − | switch(config)# exit | + | |
| − | switch# wr mem | + | switch# config t |
| − | switch# reload | + | 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 | ||
Revision as of 04:09, 21 September 2010
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. OPTIONAL and DANGEROUS Otherwise do:
switch# delete flashimagename
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
