L4T R21.6 — LTS update for Jetson TK1
NVIDIA has released [b][url=https://developer.nvidia.com/linux-tegra-r216]L4T R21.6[/url][/b], a software maintenance update for Jetson TK1 with long-term support (LTS). Please see the [b][url=https://developer.nvidia.com/embedded/dlc/release-notes-r216]Release Notes[/url][/b] for more info. For a complete list of kernel fixes, see [url=https://nv-tegra.nvidia.com/gitweb/?p=linux-3.10.git;ba=shortlog;bh=refs/heads/l4t/l4t-r21]here[/url]. L4T R21.6 download available here - [b][url]https://developer.nvidia.com/linux-tegra-r216[/url][/b]
NVIDIA has released L4T R21.6, a software maintenance update for Jetson TK1 with long-term support (LTS).

Please see the Release Notes for more info. For a complete list of kernel fixes, see here.

L4T R21.6 download available here - https://developer.nvidia.com/linux-tegra-r216
#1
Posted 10/26/2017 01:29 PM   
A hotfix has been issued for Tegra System Profiler (TSP), which some users had reported problems launching in R21.6 The updated TSP package has been transparently updated in JetPack, now reflecting version 3.8.450 instead of previous 3.7.224: [img]https://a70ad2d16996820e6285-3c315462976343d903d5b3a03b69072d.ssl.cf2.rackcdn.com/7b0a2e3701924949c1b57b363461bccd[/img]
A hotfix has been issued for Tegra System Profiler (TSP), which some users had reported problems launching in R21.6

The updated TSP package has been transparently updated in JetPack, now reflecting version 3.8.450 instead of previous 3.7.224:

Image
#2
Posted 11/13/2017 02:47 PM   
While the latest JetPack 3.1 now does show TSP version 3.8.450 the "File System and OS" as well as Drivers is still showing 21.5.0. Does this get transparently updated at one time too? On a similar account I could also not find a 21.6 version of the "Jetson TK1 Developer Kit Factory Image". Will that one be made available for 21.6 as well?
While the latest JetPack 3.1 now does show TSP version 3.8.450 the "File System and OS" as well as Drivers is still showing 21.5.0. Does this get transparently updated at one time too?

On a similar account I could also not find a 21.6 version of the "Jetson TK1 Developer Kit Factory Image". Will that one be made available for 21.6 as well?

#3
Posted 12/02/2017 10:22 PM   
For me "head -n 1 /etc/nv_tegra_release" shows as: [code]# R21 (release), REVISION: 6.0, GCID: 9817203, BOARD: ardbeg, EABI: hard, DATE: Thu Oct 5 00:28:55 UTC 2017[/code] How are you viewing version information?
For me "head -n 1 /etc/nv_tegra_release" shows as:
# R21 (release), REVISION: 6.0, GCID: 9817203, BOARD: ardbeg, EABI: hard, DATE: Thu Oct  5 00:28:55 UTC 2017


How are you viewing version information?

#4
Posted 12/03/2017 12:53 AM   
And you did flash yours via JetPack as well? There I still end up with 21.5.
And you did flash yours via JetPack as well? There I still end up with 21.5.

#5
Posted 12/03/2017 01:01 AM   
I used command line flash.sh plus sample rootfs. Do you still have the rootfs subdirectory after the flash? It might provide something like an audit trail. One reason I would like to know how you determined version is to compare with the command line flash.
I used command line flash.sh plus sample rootfs. Do you still have the rootfs subdirectory after the flash? It might provide something like an audit trail. One reason I would like to know how you determined version is to compare with the command line flash.

#6
Posted 12/03/2017 01:30 AM   
Well, I'm very well capable of flashing 21.6. I'm just saying that the JetPack does not seem to do so yet.
Well, I'm very well capable of flashing 21.6. I'm just saying that the JetPack does not seem to do so yet.

#7
Posted 12/03/2017 01:36 AM   
I agree with Toradex-Linux on post #3 "JetPack 3.1 now does show TSP version 3.8.450 the "File System and OS" as well as Drivers is still showing 21.5.0." The JetPack 3.1 ONLY flashes R21.5 not R21.6.
I agree with Toradex-Linux on post #3 "JetPack 3.1 now does show TSP version 3.8.450 the "File System and OS" as well as Drivers is still showing 21.5.0."

The JetPack 3.1 ONLY flashes R21.5 not R21.6.

#8
Posted 03/26/2018 02:17 PM   
It looks like R21.6 requires flashing from command line using driver package plus sample rootfs. The problem I see with that is finding the extra tools/libraries, e.g., CUDA has typically been available only through JetPack. On the other hand, CUDA and those other tools stopped development on 32-bit a while back...you could probably run command line to R21.6, and then run the older JetPack and choose only package installs. Nothing in these newer releases was any kind of major version change, e.g., R21.6 was mostly a security fix for bluetooth issues (everything in the world with bluetooth pretty much needed an update). Can you try downloading and installing R21.6 via command line, and then running an older JetPack for package updates?
It looks like R21.6 requires flashing from command line using driver package plus sample rootfs. The problem I see with that is finding the extra tools/libraries, e.g., CUDA has typically been available only through JetPack.

On the other hand, CUDA and those other tools stopped development on 32-bit a while back...you could probably run command line to R21.6, and then run the older JetPack and choose only package installs. Nothing in these newer releases was any kind of major version change, e.g., R21.6 was mostly a security fix for bluetooth issues (everything in the world with bluetooth pretty much needed an update).

Can you try downloading and installing R21.6 via command line, and then running an older JetPack for package updates?

#9
Posted 03/26/2018 08:14 PM   
Yes. I was able to download and install R21.6 via command line, and then able to run JetPack 3.1 for package updates. Thanks.
Yes. I was able to download and install R21.6 via command line, and then able to run JetPack 3.1 for package updates. Thanks.

#10
Posted 03/28/2018 03:42 PM   
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