Jetson tx2 unable update?

Why can’t update be used on nvidia tx2? An error message will appear.

Please help to provide more details of your issue.

fnhz@fnhz-desktop:~$ sudo apt-get update
[sudo] password for fnhz:
Hit:1 https://repo.download.nvidia.cn/jetson/common r32.5 InRelease
Hit:2 https://repo.download.nvidia.cn/jetson/t186 r32.5 InRelease
Get:3 http://cn.archive.ubuntu.com/ubuntu xenial InRelease [247 kB]
Get:6 http://security.ubuntu.com/ubuntu xenial-security InRelease [109 kB]
Ign:7 http://security.ubuntu.com/ubuntu xenial-security/main arm64 Packages
Get:8 http://security.ubuntu.com/ubuntu xenial-security/main Translation-en [364 kB]
Get:9 http://security.ubuntu.com/ubuntu xenial-security/main arm64 DEP-11 Metadata [87.3 kB]
Get:10 http://security.ubuntu.com/ubuntu xenial-security/main DEP-11 48x48 Icons [24.7 kB]
Get:11 http://security.ubuntu.com/ubuntu xenial-security/main DEP-11 64x64 Icons [108 kB]
Get:12 http://security.ubuntu.com/ubuntu xenial-security/restricted Translation-en [2,152 B]
Get:13 http://security.ubuntu.com/ubuntu xenial-security/restricted arm64 DEP-11 Metadata [200 B]
Get:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages [747 kB]
Get:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages [747 kB]
Get:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages [747 kB]
Get:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages [747 kB]
Get:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages [747 kB]
Get:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages [747 kB]
Get:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages [747 kB]
Get:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages [747 kB]
Ign:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages
Ign:23 http://security.ubuntu.com/ubuntu xenial-security/multiverse arm64 Packages
Ign:7 http://security.ubuntu.com/ubuntu xenial-security/main arm64 Packages
Get:4 http://cn.archive.ubuntu.com/ubuntu xenial-updates InRelease [109 kB]
Ign:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages
Ign:23 http://security.ubuntu.com/ubuntu xenial-security/multiverse arm64 Packages
Get:5 http://cn.archive.ubuntu.com/ubuntu xenial-backports InRelease [107 kB]
Ign:7 http://security.ubuntu.com/ubuntu xenial-security/main arm64 Packages
Ign:7 http://59.80.44.46/security.ubuntu.com/202102231343/4EE0CC1F479A3345AA2E2639F687DC5E/ubuntu xenial-security/main arm64 Packages
Ign:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages
Ign:14 http://59.80.44.45/security.ubuntu.com/202102231343/DBF1CF11F118DE2B4187A8BFBC080563/ubuntu xenial-security/universe arm64 Packages
Err:7 http://security.ubuntu.com/ubuntu xenial-security/main arm64 Packages
404 Not Found [IP: 91.189.88.152 80]
Ign:23 http://59.80.44.46/security.ubuntu.com/202102231341/603CF56B6CE815B3A6028497D3A5948A/ubuntu xenial-security/multiverse arm64 Packages
Ign:14 http://security.ubuntu.com/ubuntu xenial-security/universe arm64 Packages
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Get:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages [1,130 kB]
Ign:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages
Ign:49 http://cn.archive.ubuntu.com/ubuntu xenial/universe arm64 Packages
Ign:50 http://cn.archive.ubuntu.com/ubuntu xenial/multiverse arm64 Packages
Ign:51 http://cn.archive.ubuntu.com/ubuntu xenial-updates/main arm64 Packages
Ign:52 http://cn.archive.ubuntu.com/ubuntu xenial-updates/universe arm64 Packages
Ign:53 http://cn.archive.ubuntu.com/ubuntu xenial-updates/multiverse arm64 Packages
Get:54 http://cn.archive.ubuntu.com/ubuntu xenial-updates/multiverse DEP-11 64x64 Icons [14.3 kB]
Ign:55 http://cn.archive.ubuntu.com/ubuntu xenial-backports/main arm64 Packages
Get:56 http://cn.archive.ubuntu.com/ubuntu xenial-backports/main Translation-en [4,456 B]
Get:57 http://cn.archive.ubuntu.com/ubuntu xenial-backports/main arm64 DEP-11 Metadata [3,328 B]
Get:58 http://cn.archive.ubuntu.com/ubuntu xenial-backports/main DEP-11 48x48 Icons [29 B]
Get:59 http://cn.archive.ubuntu.com/ubuntu xenial-backports/main DEP-11 64x64 Icons [29 B]
Get:60 http://cn.archive.ubuntu.com/ubuntu xenial-backports/restricted arm64 DEP-11 Metadata [194 B]
Ign:61 http://cn.archive.ubuntu.com/ubuntu xenial-backports/universe arm64 Packages
Get:62 http://cn.archive.ubuntu.com/ubuntu xenial-backports/universe Translation-en [4,476 B]
Get:63 http://cn.archive.ubuntu.com/ubuntu xenial-backports/universe arm64 DEP-11 Metadata [6,616 B]
Get:64 http://cn.archive.ubuntu.com/ubuntu xenial-backports/universe DEP-11 48x48 Icons [2,809 B]
Get:65 http://cn.archive.ubuntu.com/ubuntu xenial-backports/universe DEP-11 64x64 Icons [5,608 B]
Get:66 http://cn.archive.ubuntu.com/ubuntu xenial-backports/multiverse arm64 DEP-11 Metadata [212 B]
Get:67 http://cn.archive.ubuntu.com/ubuntu xenial-backports/multiverse DEP-11 64x64 Icons [29 B]
Ign:24 http://cn.archive.ubuntu.com/ubuntu xenial/main arm64 Packages
Ign:49 http://cn.archive.ubuntu.com/ubuntu xenial/universe arm64 Packages
Ign:50 http://cn.archive.ubuntu.com/ubuntu xenial/multiverse arm64 Packages
Ign:51 http://cn.archive.ubuntu.com/ubuntu xenial-updates/main arm64 Packages
Ign:52 http://cn.archive.ubuntu.com/ubuntu xenial-updates/universe arm64 Packages
Ign:53 http://cn.archive.ubuntu.com/ubuntu xenial-updates/multiverse arm64 Packages
Ign:55 http://cn.archive.ubuntu.com/ubuntu xenial-backports/main arm64 Packages
Ign:61 http://cn.archive.ubuntu.com/ubuntu xenial-backports/universe arm64 Packages
Ign:49 http://cn.archive.ubuntu.com/ubuntu xenial/universe arm64 Packages
Ign:49 http://59.80.44.47/cn.archive.ubuntu.com/202102231343/E44D3BB1BB6151F18E3DB09F0B2485EA/ubuntu xenial/universe arm64 Packages
Ign:61 http://cn.archive.ubuntu.com/ubuntu xenial-backports/universe arm64 Packages
Ign:61 http://59.80.44.45/cn.archive.ubuntu.com/202102231343/173E68805CFFF7A0640A54412AF91C3C/ubuntu xenial-backports/universe arm64 Packages
Err:49 http://cn.archive.ubuntu.com/ubuntu xenial/universe arm64 Packages
404 Not Found [IP: 91.189.91.39 80]
Ign:24 http://59.80.44.44/cn.archive.ubuntu.com/202102231342/8729AC50C4F2F4C3C0100336D944A2E0/ubuntu xenial/main arm64 Packages
Ign:50 http://59.80.44.47/cn.archive.ubuntu.com/202102231342/2DE18CC9ACFF02C52F1647156432A74D/ubuntu xenial/multiverse arm64 Packages
Err:61 http://cn.archive.ubuntu.com/ubuntu xenial-backports/universe arm64 Packages
404 Not Found [IP: 91.189.91.39 80]
Ign:53 http://cn.archive.ubuntu.com/ubuntu xenial-updates/multiverse arm64 Packages
Ign:53 http://59.80.44.47/cn.archive.ubuntu.com/202102231344/953BFC1AFFEA62459EE3D8FCF5F60865/ubuntu xenial-updates/multiverse arm64 Packages
Err:53 http://cn.archive.ubuntu.com/ubuntu xenial-updates/multiverse arm64 Packages
404 Not Found [IP: 91.189.91.39 80]
Ign:55 http://59.80.44.47/cn.archive.ubuntu.com/202102231343/BD95E6B4F1E38D64E00ADCD9D92509F9/ubuntu xenial-backports/main arm64 Packages
Ign:51 http://59.80.44.44/cn.archive.ubuntu.com/202102231344/D77AC29F6AFB1B3DEA4C46C3B27668AB/ubuntu xenial-updates/main arm64 Packages
Ign:52 http://59.80.44.44/cn.archive.ubuntu.com/202102231343/EDEB22A926477D163D5C897D45436F58/ubuntu xenial-updates/universe arm64 Packages
Fetched 572 kB in 42s (13.8 kB/s)
Reading package lists… Done
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/main/binary-arm64/Packages 404 Not Found [IP: 91.189.88.152 80]
E: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-arm64/Packages 404 Not Found [IP: 91.189.91.39 80]
E: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/xenial-updates/multiverse/binary-arm64/Packages 404 Not Found [IP: 91.189.91.39 80]
E: Failed to fetch http://cn.archive.ubuntu.com/ubuntu/dists/xenial-backports/universe/binary-arm64/Packages 404 Not Found [IP: 91.189.91.39 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.

To upgrade the system you need to issue:

sudo apt update
apt list --upgradable
sudo apt upgrade

Hello! I would like to ask if jetson equipment can obtain the SN code through instructions?