HMC updates managed system firmware on both T and P sides ?


 
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Operating Systems AIX HMC updates managed system firmware on both T and P sides ?
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Old 09-19-2011
HMC updates managed system firmware on both T and P sides ?

Hi,

I'm planning to update managed system firmware to new release using HMC.
This is cite from IBM documentation describing HMC managed system updates:
Quote:
If any actions are listed at the bottom of the confirmation panel, complete them, and then click OK to confirm that the upgrade should begin. A progress panel displays the results as the upgrade proceeds. At the end of the process, the new release level of LIC will be installed on both the t-side (temporary side) and the p-side (permanent side).
What I know we install new firmware to T side and in case some problems we boot P side and reject new fw on T.
So if HMC updates both T and P at the same time - the question is why ?

thanks
Vilius
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ATMEL_FWL(8)						      System Manager's Manual						      ATMEL_FWL(8)

NAME
atmel_fwl - Load firmware into Atmel at76c50x wireless networking chips. SYNOPSIS
atmel_fwl <interface> /path/to/firmware DESCRIPTION
atmel_fwl loads firmware images for Atmel at76c50x series wireless networking chips into the Linux driver for same. Note that this utility is not normally necessary, since the driver will automatically load the correct firmware image via the hotplug sys- tem. Atmel_fwl is provided for applications where use of the hotplug system may not be desirable. atmel_fwl should be run after the interface has been created (after card insertion, in the case of PCMCIA cards) but before it is brought up by running ifconfig. NOTES
Note that there are two versions of many of the firmware images, the second one with the suffix "-wpa". These are later releases from Atmel which support WPA privacy. They are only usable by versions of the driver greater than 0.9. Be sure not to use the "-wpa" one unless your in-kernel driver code is version 0.9 or better. Sadly, as of version 0.9, the in-kernel driver does not actually support the setting of WPA passphrases. The firmware images are usually installed in /usr/lib/hotplug/firmware. The status of the driver, including its firmware loading, is available in /proc/driver/atmel FILES
/usr/lib/hotplug/firmware /proc/driver/atmel SEE ALSO
iwconfig(8), ifconfig(8), AUTHOR
This manual page was written by Simon Kelley <simon@thekelleys.org.uk>. ATMEL_FWL(8)