03-09-2012 11:13 AM
We have loaded CSS release 8.20.5.1, but our 11503 pair rebooted after a week so we wanted to rollback to 8.20.3.03.
I ran the upgrade script and loaded 8.20.3.03, but on reboot the old ver did not get written to the modules, als operational flash is still 8.20.5.01.
Does anyone know how to force the downgrade to operational flash and the modules? Or does it not even matter? The CSS is running fine woth no boot errors. Here's the example;
css# sh ver
Version: sg0820303 (08.20.3.03)
Flash (Locked): 07.50.1.03
Flash (Operational): 08.20.5.01
Type: PRIMARY
Licensed Cmd Set(s): Standard Feature Set
Secure Management
css# sh chassis flash
Configuration for CSS11506-2AC K0:
Product Name: CSS11506-2AC K0 SW Version: 08.20.3.03
Serial Number: xxxxxxxx Base Mac Address: xxxxxxxx
Slot/SubSlot Operational Locked
1/1 *08.20.5.01 07.50.1.03
2/1 *08.20.5.01 08.10.1.06
4/1 *08.20.5.01 08.10.1.06
css# sh installed-software
sg0820303
sg0820501
css# sh boot
!************************ BOOT CONFIG ************************
ip address x.x.x.x
subnet mask 255.255.0.0
gateway address x.x.x.x
primary boot-file sg0820303
primary boot-type boot-via-disk
Any help greatly appreciated.
04-06-2012 10:09 PM
Hi Julian,
What you experienced is not normal, did the CSS generate a core dump? if you do show core, are you seeing a file there? if yes, I will recommend you to open a TAC case so we can analyze that.
Regarding your question:
css# sh ver
Version: sg0820303 (08.20.3.03)
Flash (Locked): 07.50.1.03
Flash (Operational): 08.20.5.01
The really important one is the Version output, Flash Operation is an historical for track purposes, of the latest code, that the CSS has ever used, so every time that you upgrade the code to the latest brand new code, that value is going to be updated, but if you do a downgrade, that will not cause any difference, so you do not need to worry about it.
HTH.
Rodrigo
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