4507 - Loading new image upon reboot

Answered Question
Mar 1st, 2010

Hi,

I have a 4507RE and just copied over a new IOS (cat4500-ipbase-mz.122-31.SGA11.bin). Since the older image is currently loaded, i need to reboot the switch so that the new image can be loaded. What command do I use to instruct the switch to use the new image and not old upon reboot? But i do not want to erase the old image just incase i need to revert back to it.


I have copied the Sh Vers and Sh Bootflash outputs below.

Thanks.


Nyo1#sh vers



Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500-IPBASE-M), Versi




12.2(31)SGA6, RELEASE SOFTWARE (fc2)


ROM: 12.2(31r)SGA1


Dagobah Revision 226, Swamp Revision 32



Nyo1 uptime is 6 days, 4 hours, 8 minutes


Uptime for this control processor is 6 days, 4 hours, 8 minutes


System returned to ROM by power-on


System restarted at 21:46:54 UTC Tue Feb 23 2010


System image file is "bootflash:cat4500-ipbase-mz.122-31.SGA6.bin"



cisco WS-C4507R-E (MPC8245) processor (revision 14) with 524288K bytes of memo


.


Processor board ID FOX1247GU5W


MPC8245 CPU at 333Mhz, Supervisor IV


Last reset from PowerUp


7 Virtual Ethernet interfaces


24 FastEthernet interfaces


44 Gigabit Ethernet interfaces


403K bytes of non-volatile configuration memory.




Configuration register is 0x2102



sh bootflas


-#- ED ----type---- --crc--- -seek-- nlen -length- ---------date/time---------


ame


1   .. image        03EDCAC2  C25744   33 12211908 Nov 29 2008 11:45:41 +00:00


cat4500-ipbase-mz.122-31.SGA6.bin


2   .. config       08FF031E  C2637C    3     2999 Feb 1 2010 05:49:33 +00:00 u


t


3   .. image        23EDC87D 17B69C8   34 12125644 Feb 27 2010 01:27:58 +00:00


cat4500-ipbase-mz.122-31.SGA11.bin




37000760 bytes available (24340936 bytes used)


Nyo1#

Correct Answer by Leo Laohoo about 6 years 12 months ago

conf t
no boot system
boot system bootflash:cat4500-ipbase-mz.122-31.SGA11.bin
boot system bootflash:cat4500-ipbase-mz.122-31.SGA6.bin
end
wr
reload


Basically, the commands mean boot SGA11 first.  If the IOS fails, boot SGA6.

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Correct Answer
Leo Laohoo Mon, 03/01/2010 - 18:14

conf t
no boot system
boot system bootflash:cat4500-ipbase-mz.122-31.SGA11.bin
boot system bootflash:cat4500-ipbase-mz.122-31.SGA6.bin
end
wr
reload


Basically, the commands mean boot SGA11 first.  If the IOS fails, boot SGA6.

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