I would like to understand the meaning of the number appended to the filename at the output of a show bootvar. ,1 or ,12. I could not find a definitve statement at the cco. Can anybody help ?
BOOT variable = bootflash:cat4000-is-mz.121-12c.EW.bin,1;bootflash:cat4000-is-mz.121-12c.EW1.bin,12
this is the sequence of how the image is loaded when the box boots up.
Firsrt it will load bootflash:cat4000-is-mz.121-12c.EW.bin, if that fails it will load bootflash:cat4000-is-mz.121-12c.EW1.bin,12
Thanks for your reply. I have been aware of this and I'm rather interested in the meaning of the number following the name of the image
Those indicators also appear if only one image is listed in the boot sequence list.
Based on https://community.cisco.com/t5/switching/6509-e-boot-variable-sup-bootdisk-1/td-p/1152977 "The number displayed after the image name (for example, c6sup12-js-mz.121-13.E,12) indicates the number of times that the Cisco 7600 series router tries to reboot the file before giving up."
From my small amount of testing, I have seen both ",1" and ",12" which appear to depend on the command used:
(config)boot system bootflash:cat4500e-lanbasek9-mz.152-2.E8.bin
BOOT variable = bootflash:cat4500e-lanbasek9-mz.152-2.E8.bin,12;
(config)boot system flash bootflash:cat4500e-lanbasek9-mz.152-2.E8.bin
BOOT variable = bootflash:cat4500e-lanbasek9-mz.152-2.E8.bin,1;
You can also add more variables to the system image string, but I am unsure what, if anything this does. For example:
(config)boot system flash bootflash:cat4500e-lanbasek9-mz.152-2.E8.bin,3
BOOT variable = bootflash:cat4500e-lanbasek9-mz.152-2.E8.bin,3,1; - ???
I have found no way of modifying the default ",1" or ",12".