Cisco Catalyst 3750X-48PF-S

[JackinJain0870]

Hello,

is there a firmware path going from 12.2(55)SE to 15.2.4E10(MD) or can we directly upgrade to the recommended version? I did go over the IOS release document but still would like to make sure. 

Thank you

[Seb Rupik]

Hi there,

It is fine to jump between versions. Keep in mind that there will be several microcode upgrades encountered during this upgrade and these will be done when booting into the new image for the first time. It would be a good idea to connect a console cable so you can see what it going on. The process will take around 30 minutes to complete.

cheers,

Seb.

[JackinJain0870]

I had issues where it was not taking the .tar file. the error i have pasted below. I am not sure if that meant I didn't have enough memory but even upon researching I couldn't come across anything. I was doing this via TFTP SolarWinds. I also tried doing /allow-feature-upgrade after archive command 

Loading c3750e-universalk9-tar.152-4.E10.tar from 10.100.90.148 (via Vlan90): !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
examining image...
extracting info (109 bytes)
extracting c3750e-universalk9-mz.152-4.E10/info (540 bytes)
extracting info (109 bytes)

Stacking Version Number: 1.59

System Type: 0x00000002
Ios Image File Size: 0x01860200
Total Image File Size: 0x01D49A00
Minimum Dram required: 0x08000000
Image Suffix: universalk9-152-4.E10
Image Directory: c3750e-universalk9-mz.152-4.E10
Image Name: c3750e-universalk9-mz.152-4.E10.bin
Image Feature: IP|LAYER_3|PLUS|SSH|3DES|MIN_DRAM_MEG=128

Error: The image in the archive which would be used to upgrade
Error: system number 3 does not support that system type.

[Giuseppe Larosa]

Hello @JackinJain0870 ,

reading the error messages :

>>

mage Feature: IP|LAYER_3|PLUS|SSH|3DES|MIN_DRAM_MEG=128

Error: The image in the archive which would be used to upgrade
Error: system number 3 does not support that system type.

it looks like the switch has not enough RAM to execute the target image that require 128 MB of RAM minimum

You can check how much memory you have using

show version

Hope to help

Giuseppe

[Joseph W. Doherty]

Your sure you have sufficient free flash to load the whole TAR and expand it?

(BTW, I recall [?] all 3750s have sufficient RAM for all offered IOS images, but you can often be short on needed flash.)

[Joseph W. Doherty]

As Seb already notes, yes you can. Also as he further notes, the microcode upgrades (if needed) will extend the reload time and ideally you should have a console connection. (An example of the importance of the latter, found a 3750 thought to have been successfully fully upgraded, but reapplying upgrade with a console connection, discovered a microcode upgrade was failing [due to insufficient free flash to contain the microcode's decompressed installation package].)