Updating/upgrading Firmware on Extreme Switch.

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I have a switch Summit X450e-48p. It is running a firmware version v1244b8-patch1-2. I want to update/upgrade to the latest. My issue here is 1) where can I go to download the lattest version of firmware, and 2) If somebody out there be so kind enough to provide me or direct to a documention of step by step of update/upgrading a firmware on a swich without flying it. I am pretty new to Extreme Xos enviroment. Thanks so much.
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Posted 4 years ago

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The above link will provide access to software downloads if you have login access.
To request login access contact Extreme TAC.

upgrade procedure
1.TFTP server connectivity to switch must be established
2.from switch cli -----------download image <tftp ip>  exosfilename vr vr-mgmt/default 
The above command will copy the exos to switch and install it.
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Anjanesh Babu

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To build on  to Parthiban's  reply ,  the second command  returned  invalid input. 
Modified and this worked as of 28.July.2015
download image <tftp-server-ip> <exosfilename> VR-Default secondary 

Sample output from cli 

swictch# download image  summitX-   VR-Default secondary 
Do you want to install image after downloading?(y - yes, n - no, <cr> - cancel) y
Downloading to Switch....................................................................Installing to secondary partition!
Installing to Switch.............................................................................Image installed successfully
This image will be used only after rebooting the switch!
switch # reboot
Are you sure you want to reboot the switch? (y/N) Yes
Sending SIGKILL to all processes switch # show version Switch : 800471-00-13 1451N-41497 Rev 13.0 BootROM: IMG: PSU-1 : Internal Power Supply PSU-2 :
Image : ExtremeXOS version by release-manager
on Fri Jun 12 17:47:56 EDT 2015 BootROM : Diagnostics : 6.3
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Murilo Melo

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Still on the subject
We have a x450-48p and after access the software download page, the latest version on the list is 12.1.1, but have it installed version 12.6.10

how to know the latest version supported by a switch?
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Drew C., Community Manager

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Hi Murilo,
Take a look at this article to help know which versions are supported.

Regarding not being able to see any software newer than 12.1, it is likely due to software entitlement status.  If you'd like to open a support case, GTAC can take a look at what's going on.
I can help you here if you will start a new topic marked "private."  Just include your serial number so that I can look it up.
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Murilo Melo

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Hello Drew,

The information already shared are more than enough.

Thank you very much for your attention.
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Ryan Mathews, Alum

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Welcome to the Hub Murilo.  Appreciate you joining our community.