Problem with IOS upgrade

[lodovici2012]

Hi,

I try to downgrade a IOS from version 15.0(2)SE2 to version 12.2(55)SE7 on a WS-C2960-48TC-S

I copy the .bin file from a TFTP server in the flash and after I use these commands :

boot system xxx.bin

copy running-config startup-config

reload

In the show boot I have

BOOT path-list      : c2960-lanlitek9-mz.122-55.SE7.bin

it's good, but after that the switch reload, in the show version I have always the version 15.0(2)SE2

The register is 0xF and it's impossible to change it to 0x2102 (I'm not sur it's the solution, but I tryed).

I'm confusing, because same days ago I used the same method on others switchs (same model, same IOS versions and same configuration register) and the switchs reloaded with the good IOS version (12.2(55)SE7 )

Any idea?

Thanks

[Mark Malone · Accepted solution]

Hi

Try boot system flash://c2960-lanlitek9-mz.122-55.SE7.bin

then save and reboot , when you just say boot system it wont pull it from flash from my experience

[lodovici2012]

Hi mark,

tanks you, the correct command is flash:c2960-lanlitek9-mz.122-55.SE7.bin

the problem is solved.

But I have another question please:

after the downgrade, on the switch any username have  disappeared.

Do you now why? Is there a solution?

Thanks

[Mark Malone]

what do you mean " any username have  disappeared" did you follow the process of copying the config from running to startup etc ?

did you loose al the config ?

[lodovici2012]

Non, I did't lose all the config, only the config about the locals users, like:

username xxx privilege 15 secret yyy

I copied the config from running to startup, yes

[Mark Malone]

That strange sounds like a bug that should not happen when moving between IOS versions

[lodovici2012]

I Mark,

I think it's a bug too. To test, I have update from

c2960-lanlitek9-mz.122-55.SE7

to

c2960-lanbasek9-mz.122-55.SE10

with no problem: all user accounts remain in the configuration after the update.

Thank you

[Mark Malone]

that's good you were able to isolate it and prove it out