请教： OK3568开发板如何安装cutecom？
您好，我在开发板的forlinx desktop 上安装cutecom图形化串口工具；forlinx@ok3568:~$ sudo apt-getinstall cutecom
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package cutecom
forlinx@ok3568:~$
提示没找到安装包， 请问Forlinx有没有可以apt-get使用的sources.list?
或者其它安装方法？
我在开发板上apt-get install 从来没成功过，虽然已经用了阿里、清华等国内的list，不知为何就是不行。
这个cutecom是源码要用cmake编译，开发板好像不行，头疼~~:dizzy:
多谢！！！
先sudo apt update更新下软件包列表再sudo apt-getinstall cutecom。 頂頂頂頂頂頂頂頂頂
留字學習 ..
forlinx@ok3568:/etc/apt$ sudo apt update
password for forlinx:
Get:1 http://mirrors.sohu.com/ubuntu focal InRelease
Get:2 http://mirrors.163.com/ubuntu focal InRelease
Get:3 http://mirrors.163.com/ubuntu focal-security InRelease
Get:4 http://mirrors.163.com/ubuntu focal-updates InRelease
Get:5 http://mirrors.163.com/ubuntu focal-proposed InRelease
Get:6 http://mirrors.sohu.com/ubuntu focal-security InRelease
Get:7 http://mirrors.163.com/ubuntu focal-backports InRelease
Get:8 http://mirrors.163.com/ubuntu focal/restricted Sources
Get:9 http://mirrors.sohu.com/ubuntu focal-updates InRelease
Get:10 http://mirrors.163.com/ubuntu focal/universe Sources
Get:11 http://mirrors.163.com/ubuntu focal/multiverse Sources
Get:12 http://mirrors.163.com/ubuntu focal/main Sources
Get:13 http://mirrors.163.com/ubuntu focal/main arm64 Packages
Get:13 http://mirrors.163.com/ubuntu focal/main arm64 Packages
Get:13 http://mirrors.163.com/ubuntu focal/main arm64 Packages
Get:13 http://mirrors.163.com/ubuntu focal/main arm64 Packages
Ign:13 http://mirrors.163.com/ubuntu focal/main arm64 Packages
Ign:18 http://mirrors.163.com/ubuntu focal/restricted arm64 Packages
Ign:19 http://mirrors.163.com/ubuntu focal/universe arm64 Packages
Ign:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Ign:13 http://mirrors.163.com/ubuntu focal/main arm64 Packages
Ign:18 http://mirrors.163.com/ubuntu focal/restricted arm64 Packages
Ign:19 http://mirrors.163.com/ubuntu focal/universe arm64 Packages
Get:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Get:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Get:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Get:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Get:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Get:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Get:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Get:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Get:29 http://mirrors.sohu.com/ubuntu focal-proposed InRelease
Ign:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Get:30 http://mirrors.163.com/ubuntu focal-security/main arm64 Packages
Get:30 http://mirrors.163.com/ubuntu focal-security/main arm64 Packages
Get:30 http://mirrors.163.com/ubuntu focal-security/main arm64 Packages
Get:30 http://mirrors.163.com/ubuntu focal-security/main arm64 Packages
Get:30 http://mirrors.163.com/ubuntu focal-security/main arm64 Packages
Ign:30 http://mirrors.163.com/ubuntu focal-security/main arm64 Packages
Get:36 http://mirrors.sohu.com/ubuntu focal-backports InRelease
Ign:37 http://mirrors.163.com/ubuntu focal-security/restricted arm64 Packages
Get:38 http://mirrors.163.com/ubuntu focal-security/universe arm64 Packages
Ign:38 http://mirrors.163.com/ubuntu focal-security/universe arm64 Packages
Ign:40 http://mirrors.163.com/ubuntu focal-security/multiverse arm64 Packages
Ign:13 http://mirrors.163.com/ubuntu focal/main arm64 Packages
Ign:18 http://mirrors.163.com/ubuntu focal/restricted arm64 Packages
Ign:19 http://mirrors.163.com/ubuntu focal/universe arm64 Packages
Ign:41 http://mirrors.163.com/ubuntu focal-updates/main arm64 Packages
Ign:42 http://mirrors.163.com/ubuntu focal-updates/restricted arm64 Packages
Ign:43 http://mirrors.163.com/ubuntu focal-updates/universe arm64 Packages
Get:44 http://mirrors.163.com/ubuntu focal-updates/universe Translation-en
Get:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Get:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Get:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Get:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Get:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Get:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Get:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Get:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Get:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Get:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Ign:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Get:56 http://mirrors.163.com/ubuntu focal-proposed/main Sources
Ign:57 http://mirrors.163.com/ubuntu focal-proposed/main arm64 Packages
Get:58 http://mirrors.163.com/ubuntu focal-proposed/main Translation-en
Ign:59 http://mirrors.163.com/ubuntu focal-proposed/restricted arm64 Packages
Ign:60 http://mirrors.163.com/ubuntu focal-proposed/universe arm64 Packages
Ign:61 http://mirrors.163.com/ubuntu focal-backports/main arm64 Packages
Ign:62 http://mirrors.163.com/ubuntu focal-backports/universe arm64 Packages
Ign:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Ign:30 http://mirrors.163.com/ubuntu focal-security/main arm64 Packages
Ign:37 http://mirrors.163.com/ubuntu focal-security/restricted arm64 Packages
Ign:38 http://mirrors.163.com/ubuntu focal-security/universe arm64 Packages
Ign:40 http://mirrors.163.com/ubuntu focal-security/multiverse arm64 Packages
Ign:13 http://mirrors.163.com/ubuntu focal/main arm64 Packages
Ign:18 http://mirrors.163.com/ubuntu focal/restricted arm64 Packages
Ign:19 http://mirrors.163.com/ubuntu focal/universe arm64 Packages
Ign:41 http://mirrors.163.com/ubuntu focal-updates/main arm64 Packages
Ign:42 http://mirrors.163.com/ubuntu focal-updates/restricted arm64 Packages
Ign:43 http://mirrors.163.com/ubuntu focal-updates/universe arm64 Packages
Ign:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Ign:57 http://mirrors.163.com/ubuntu focal-proposed/main arm64 Packages
Ign:59 http://mirrors.163.com/ubuntu focal-proposed/restricted arm64 Packages
Ign:60 http://mirrors.163.com/ubuntu focal-proposed/universe arm64 Packages
Ign:61 http://mirrors.163.com/ubuntu focal-backports/main arm64 Packages
Ign:62 http://mirrors.163.com/ubuntu focal-backports/universe arm64 Packages
Ign:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Ign:30 http://mirrors.163.com/ubuntu focal-security/main arm64 Packages
Ign:37 http://mirrors.163.com/ubuntu focal-security/restricted arm64 Packages
Ign:38 http://mirrors.163.com/ubuntu focal-security/universe arm64 Packages
Get:63 http://mirrors.sohu.com/ubuntu focal/universe Sources
Get:64 http://mirrors.sohu.com/ubuntu focal/multiverse Sources
Get:65 http://mirrors.sohu.com/ubuntu focal/restricted Sources
Get:66 http://mirrors.sohu.com/ubuntu focal/main Sources
Get:67 http://mirrors.sohu.com/ubuntu focal/main arm64 Packages
Ign:40 http://mirrors.163.com/ubuntu focal-security/multiverse arm64 Packages
Ign:13 http://mirrors.163.com/ubuntu focal/main arm64 Packages
Ign:18 http://mirrors.163.com/ubuntu focal/restricted arm64 Packages
Ign:19 http://mirrors.163.com/ubuntu focal/universe arm64 Packages
Ign:41 http://mirrors.163.com/ubuntu focal-updates/main arm64 Packages
Get:67 http://mirrors.sohu.com/ubuntu focal/main arm64 Packages
Get:67 http://mirrors.sohu.com/ubuntu focal/main arm64 Packages
Ign:67 http://mirrors.sohu.com/ubuntu focal/main arm64 Packages
Ign:42 http://mirrors.163.com/ubuntu focal-updates/restricted arm64 Packages
Ign:43 http://mirrors.163.com/ubuntu focal-updates/universe arm64 Packages
Ign:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Ign:57 http://mirrors.163.com/ubuntu focal-proposed/main arm64 Packages
Get:71 http://mirrors.sohu.com/ubuntu focal/restricted arm64 Packages
Get:71 http://mirrors.sohu.com/ubuntu focal/restricted arm64 Packages
Get:71 http://mirrors.sohu.com/ubuntu focal/restricted arm64 Packages
Get:71 http://mirrors.sohu.com/ubuntu focal/restricted arm64 Packages
Ign:59 http://mirrors.163.com/ubuntu focal-proposed/restricted arm64 Packages
Ign:60 http://mirrors.163.com/ubuntu focal-proposed/universe arm64 Packages
Ign:61 http://mirrors.163.com/ubuntu focal-backports/main arm64 Packages
Ign:62 http://mirrors.163.com/ubuntu focal-backports/universe arm64 Packages
Ign:20 http://mirrors.163.com/ubuntu focal/multiverse arm64 Packages
Ign:30 http://mirrors.163.com/ubuntu focal-security/main arm64 Packages
Get:71 http://mirrors.sohu.com/ubuntu focal/restricted arm64 Packages
Ign:71 http://mirrors.sohu.com/ubuntu focal/restricted arm64 Packages
Get:77 http://mirrors.sohu.com/ubuntu focal/universe arm64 Packages
Ign:37 http://mirrors.163.com/ubuntu focal-security/restricted arm64 Packages
Ign:38 http://mirrors.163.com/ubuntu focal-security/universe arm64 Packages
Ign:40 http://mirrors.163.com/ubuntu focal-security/multiverse arm64 Packages
Err:13 http://mirrors.163.com/ubuntu focal/main arm64 Packages
404Not Found
Ign:18 http://mirrors.163.com/ubuntu focal/restricted arm64 Packages
Ign:19 http://mirrors.163.com/ubuntu focal/universe arm64 Packages
Ign:41 http://mirrors.163.com/ubuntu focal-updates/main arm64 Packages
Ign:42 http://mirrors.163.com/ubuntu focal-updates/restricted arm64 Packages
Ign:43 http://mirrors.163.com/ubuntu focal-updates/universe arm64 Packages
Ign:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Ign:57 http://mirrors.163.com/ubuntu focal-proposed/main arm64 Packages
Ign:59 http://mirrors.163.com/ubuntu focal-proposed/restricted arm64 Packages
Ign:60 http://mirrors.163.com/ubuntu focal-proposed/universe arm64 Packages
Ign:61 http://mirrors.163.com/ubuntu focal-backports/main arm64 Packages
Ign:62 http://mirrors.163.com/ubuntu focal-backports/universe arm64 Packages
Ign:30 http://mirrors.163.com/ubuntu focal-security/main arm64 Packages
Ign:37 http://mirrors.163.com/ubuntu focal-security/restricted arm64 Packages
Ign:77 http://mirrors.sohu.com/ubuntu focal/universe arm64 Packages
Ign:38 http://mirrors.163.com/ubuntu focal-security/universe arm64 Packages
Ign:40 http://mirrors.163.com/ubuntu focal-security/multiverse arm64 Packages
Ign:41 http://mirrors.163.com/ubuntu focal-updates/main arm64 Packages
Ign:42 http://mirrors.163.com/ubuntu focal-updates/restricted arm64 Packages
Ign:43 http://mirrors.163.com/ubuntu focal-updates/universe arm64 Packages
Ign:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Ign:57 http://mirrors.163.com/ubuntu focal-proposed/main arm64 Packages
Ign:59 http://mirrors.163.com/ubuntu focal-proposed/restricted arm64 Packages
Ign:60 http://mirrors.163.com/ubuntu focal-proposed/universe arm64 Packages
Ign:61 http://mirrors.163.com/ubuntu focal-backports/main arm64 Packages
Ign:62 http://mirrors.163.com/ubuntu focal-backports/universe arm64 Packages
Err:30 http://mirrors.163.com/ubuntu focal-security/main arm64 Packages
404Not Found
Ign:37 http://mirrors.163.com/ubuntu focal-security/restricted arm64 Packages
Ign:38 http://mirrors.163.com/ubuntu focal-security/universe arm64 Packages
Ign:40 http://mirrors.163.com/ubuntu focal-security/multiverse arm64 Packages
Err:41 http://mirrors.163.com/ubuntu focal-updates/main arm64 Packages
404Not Found
Ign:42 http://mirrors.163.com/ubuntu focal-updates/restricted arm64 Packages
Ign:43 http://mirrors.163.com/ubuntu focal-updates/universe arm64 Packages
Ign:45 http://mirrors.163.com/ubuntu focal-updates/multiverse arm64 Packages
Err:57 http://mirrors.163.com/ubuntu focal-proposed/main arm64 Packages
404Not Found
Ign:59 http://mirrors.163.com/ubuntu focal-proposed/restricted arm64 Packages
Ign:60 http://mirrors.163.com/ubuntu focal-proposed/universe arm64 Packages
Err:61 http://mirrors.163.com/ubuntu focal-backports/main arm64 Packages
404Not Found
Ign:62 http://mirrors.163.com/ubuntu focal-backports/universe arm64 Packages
Ign:79 http://mirrors.sohu.com/ubuntu focal/multiverse arm64 Packages
Get:80 http://mirrors.sohu.com/ubuntu focal-security/main Sources
Get:80 http://mirrors.sohu.com/ubuntu focal-security/main Sources
Get:80 http://mirrors.sohu.com/ubuntu focal-security/main Sources
Get:83 http://mirrors.sohu.com/ubuntu focal-security/universe Sources
Get:83 http://mirrors.sohu.com/ubuntu focal-security/universe Sources
Ign:85 http://mirrors.sohu.com/ubuntu focal-security/main arm64 Packages
Get:86 http://mirrors.sohu.com/ubuntu focal-security/restricted arm64 Packages
Ign:86 http://mirrors.sohu.com/ubuntu focal-security/restricted arm64 Packages
Ign:88 http://mirrors.sohu.com/ubuntu focal-security/universe arm64 Packages
Get:89 http://mirrors.sohu.com/ubuntu focal-security/universe Translation-en
Get:89 http://mirrors.sohu.com/ubuntu focal-security/universe Translation-en
Get:89 http://mirrors.sohu.com/ubuntu focal-security/universe Translation-en
Ign:92 http://mirrors.sohu.com/ubuntu focal-security/multiverse arm64 Packages
Get:93 http://mirrors.sohu.com/ubuntu focal-updates/universe Sources
Get:94 http://mirrors.sohu.com/ubuntu focal-updates/main Sources
Ign:95 http://mirrors.sohu.com/ubuntu focal-updates/main arm64 Packages
Ign:96 http://mirrors.sohu.com/ubuntu focal-updates/restricted arm64 Packages
Ign:97 http://mirrors.sohu.com/ubuntu focal-updates/universe arm64 Packages
Get:98 http://mirrors.sohu.com/ubuntu focal-updates/universe Translation-en
Ign:99 http://mirrors.sohu.com/ubuntu focal-updates/multiverse arm64 Packages
Get:100 http://mirrors.sohu.com/ubuntu focal-proposed/restricted Sources
Get:101 http://mirrors.sohu.com/ubuntu focal-proposed/main Sources
Ign:102 http://mirrors.sohu.com/ubuntu focal-proposed/main arm64 Packages
Get:103 http://mirrors.sohu.com/ubuntu focal-proposed/main Translation-en
Ign:104 http://mirrors.sohu.com/ubuntu focal-proposed/restricted arm64 Packages
Get:105 http://mirrors.sohu.com/ubuntu focal-proposed/restricted Translation-en
Ign:106 http://mirrors.sohu.com/ubuntu focal-proposed/universe arm64 Packages
Get:107 http://mirrors.sohu.com/ubuntu focal-proposed/universe Translation-en
Get:108 http://mirrors.sohu.com/ubuntu focal-proposed/multiverse Translation-en
Ign:67 http://mirrors.sohu.com/ubuntu focal/main arm64 Packages
Get:109 http://mirrors.sohu.com/ubuntu focal-backports/main Sources
Get:110 http://mirrors.sohu.com/ubuntu focal-backports/universe Sources
Ign:111 http://mirrors.sohu.com/ubuntu focal-backports/main arm64 Packages
Get:112 http://mirrors.sohu.com/ubuntu focal-backports/main Translation-en
Ign:113 http://mirrors.sohu.com/ubuntu focal-backports/universe arm64 Packages
Get:114 http://mirrors.sohu.com/ubuntu focal-backports/universe Translation-en
Ign:71 http://mirrors.sohu.com/ubuntu focal/restricted arm64 Packages
Ign:77 http://mirrors.sohu.com/ubuntu focal/universe arm64 Packages
Ign:79 http://mirrors.sohu.com/ubuntu focal/multiverse arm64 Packages
Ign:85 http://mirrors.sohu.com/ubuntu focal-security/main arm64 Packages
Ign:86 http://mirrors.sohu.com/ubuntu focal-security/restricted arm64 Packages
Ign:88 http://mirrors.sohu.com/ubuntu focal-security/universe arm64 Packages
Ign:92 http://mirrors.sohu.com/ubuntu focal-security/multiverse arm64 Packages
Ign:95 http://mirrors.sohu.com/ubuntu focal-updates/main arm64 Packages
Ign:96 http://mirrors.sohu.com/ubuntu focal-updates/restricted arm64 Packages
Ign:97 http://mirrors.sohu.com/ubuntu focal-updates/universe arm64 Packages
Ign:99 http://mirrors.sohu.com/ubuntu focal-updates/multiverse arm64 Packages
Ign:102 http://mirrors.sohu.com/ubuntu focal-proposed/main arm64 Packages
Ign:104 http://mirrors.sohu.com/ubuntu focal-proposed/restricted arm64 Packages
Ign:106 http://mirrors.sohu.com/ubuntu focal-proposed/universe arm64 Packages
Ign:67 http://mirrors.sohu.com/ubuntu focal/main arm64 Packages
Ign:111 http://mirrors.sohu.com/ubuntu focal-backports/main arm64 Packages
Ign:113 http://mirrors.sohu.com/ubuntu focal-backports/universe arm64 Packages
Ign:71 http://mirrors.sohu.com/ubuntu focal/restricted arm64 Packages
Ign:77 http://mirrors.sohu.com/ubuntu focal/universe arm64 Packages
Ign:79 http://mirrors.sohu.com/ubuntu focal/multiverse arm64 Packages
Ign:85 http://mirrors.sohu.com/ubuntu focal-security/main arm64 Packages
Ign:86 http://mirrors.sohu.com/ubuntu focal-security/restricted arm64 Packages
Ign:88 http://mirrors.sohu.com/ubuntu focal-security/universe arm64 Packages
Ign:92 http://mirrors.sohu.com/ubuntu focal-security/multiverse arm64 Packages
Ign:95 http://mirrors.sohu.com/ubuntu focal-updates/main arm64 Packages
Ign:96 http://mirrors.sohu.com/ubuntu focal-updates/restricted arm64 Packages
Ign:97 http://mirrors.sohu.com/ubuntu focal-updates/universe arm64 Packages
Ign:99 http://mirrors.sohu.com/ubuntu focal-updates/multiverse arm64 Packages
Ign:102 http://mirrors.sohu.com/ubuntu focal-proposed/main arm64 Packages
Ign:104 http://mirrors.sohu.com/ubuntu focal-proposed/restricted arm64 Packages
Ign:106 http://mirrors.sohu.com/ubuntu focal-proposed/universe arm64 Packages
Ign:67 http://mirrors.sohu.com/ubuntu focal/main arm64 Packages
Ign:111 http://mirrors.sohu.com/ubuntu focal-backports/main arm64 Packages
Ign:113 http://mirrors.sohu.com/ubuntu focal-backports/universe arm64 Packages
Ign:71 http://mirrors.sohu.com/ubuntu focal/restricted arm64 Packages
Ign:77 http://mirrors.sohu.com/ubuntu focal/universe arm64 Packages
Ign:79 http://mirrors.sohu.com/ubuntu focal/multiverse arm64 Packages
Ign:85 http://mirrors.sohu.com/ubuntu focal-security/main arm64 Packages
Ign:86 http://mirrors.sohu.com/ubuntu focal-security/restricted arm64 Packages
Ign:88 http://mirrors.sohu.com/ubuntu focal-security/universe arm64 Packages
Ign:92 http://mirrors.sohu.com/ubuntu focal-security/multiverse arm64 Packages
Ign:95 http://mirrors.sohu.com/ubuntu focal-updates/main arm64 Packages
Ign:96 http://mirrors.sohu.com/ubuntu focal-updates/restricted arm64 Packages
Ign:97 http://mirrors.sohu.com/ubuntu focal-updates/universe arm64 Packages
Ign:99 http://mirrors.sohu.com/ubuntu focal-updates/multiverse arm64 Packages
Ign:102 http://mirrors.sohu.com/ubuntu focal-proposed/main arm64 Packages
Ign:104 http://mirrors.sohu.com/ubuntu focal-proposed/restricted arm64 Packages
Ign:106 http://mirrors.sohu.com/ubuntu focal-proposed/universe arm64 Packages
Ign:67 http://mirrors.sohu.com/ubuntu focal/main arm64 Packages
Ign:111 http://mirrors.sohu.com/ubuntu focal-backports/main arm64 Packages
Ign:113 http://mirrors.sohu.com/ubuntu focal-backports/universe arm64 Packages
Ign:71 http://mirrors.sohu.com/ubuntu focal/restricted arm64 Packages
Ign:77 http://mirrors.sohu.com/ubuntu focal/universe arm64 Packages
Ign:79 http://mirrors.sohu.com/ubuntu focal/multiverse arm64 Packages
Ign:85 http://mirrors.sohu.com/ubuntu focal-security/main arm64 Packages
Ign:86 http://mirrors.sohu.com/ubuntu focal-security/restricted arm64 Packages
Ign:88 http://mirrors.sohu.com/ubuntu focal-security/universe arm64 Packages
Ign:92 http://mirrors.sohu.com/ubuntu focal-security/multiverse arm64 Packages
Ign:95 http://mirrors.sohu.com/ubuntu focal-updates/main arm64 Packages
Ign:96 http://mirrors.sohu.com/ubuntu focal-updates/restricted arm64 Packages
Ign:97 http://mirrors.sohu.com/ubuntu focal-updates/universe arm64 Packages
Ign:99 http://mirrors.sohu.com/ubuntu focal-updates/multiverse arm64 Packages
Ign:102 http://mirrors.sohu.com/ubuntu focal-proposed/main arm64 Packages
Ign:104 http://mirrors.sohu.com/ubuntu focal-proposed/restricted arm64 Packages
Ign:106 http://mirrors.sohu.com/ubuntu focal-proposed/universe arm64 Packages
Err:67 http://mirrors.sohu.com/ubuntu focal/main arm64 Packages
404Not Found
Ign:111 http://mirrors.sohu.com/ubuntu focal-backports/main arm64 Packages
Ign:113 http://mirrors.sohu.com/ubuntu focal-backports/universe arm64 Packages
Ign:71 http://mirrors.sohu.com/ubuntu focal/restricted arm64 Packages
Ign:77 http://mirrors.sohu.com/ubuntu focal/universe arm64 Packages
Ign:79 http://mirrors.sohu.com/ubuntu focal/multiverse arm64 Packages
Err:85 http://mirrors.sohu.com/ubuntu focal-security/main arm64 Packages
404Not Found
Ign:86 http://mirrors.sohu.com/ubuntu focal-security/restricted arm64 Packages
Ign:88 http://mirrors.sohu.com/ubuntu focal-security/universe arm64 Packages
Ign:92 http://mirrors.sohu.com/ubuntu focal-security/multiverse arm64 Packages
Err:95 http://mirrors.sohu.com/ubuntu focal-updates/main arm64 Packages
404Not Found
Ign:96 http://mirrors.sohu.com/ubuntu focal-updates/restricted arm64 Packages
Ign:97 http://mirrors.sohu.com/ubuntu focal-updates/universe arm64 Packages
Ign:99 http://mirrors.sohu.com/ubuntu focal-updates/multiverse arm64 Packages
Err:102 http://mirrors.sohu.com/ubuntu focal-proposed/main arm64 Packages
404Not Found
Ign:104 http://mirrors.sohu.com/ubuntu focal-proposed/restricted arm64 Packages
Ign:106 http://mirrors.sohu.com/ubuntu focal-proposed/universe arm64 Packages
Err:111 http://mirrors.sohu.com/ubuntu focal-backports/main arm64 Packages
404Not Found
Ign:113 http://mirrors.sohu.com/ubuntu focal-backports/universe arm64 Packages
Fetched 3378 kB in 2min 53s (19.5 kB/s)
Reading package lists... Done
E: Failed to fetch http://mirrors.sohu.com/ubuntu/dists/focal/main/binary-arm64/Packages404Not Found
E: Failed to fetch http://mirrors.163.com/ubuntu/dists/focal/main/binary-arm64/Packages404Not Found
E: Failed to fetch http://mirrors.163.com/ubuntu/dists/focal-security/main/binary-arm64/Packages404Not Found [ IP: 60.191.80.11 80]
E: Failed to fetch http://mirrors.163.com/ubuntu/dists/focal-updates/main/binary-arm64/Packages404Not Found
E: Failed to fetch http://mirrors.163.com/ubuntu/dists/focal-proposed/main/binary-arm64/Packages404Not Found [ IP: 60.191.80.11 80]
E: Failed to fetch http://mirrors.163.com/ubuntu/dists/focal-backports/main/binary-arm64/Packages404Not Found
E: Failed to fetch http://mirrors.sohu.com/ubuntu/dists/focal-security/main/binary-arm64/Packages404Not Found
E: Failed to fetch http://mirrors.sohu.com/ubuntu/dists/focal-updates/main/binary-arm64/Packages404Not Found [ IP: 110.43.82.141 80]
E: Failed to fetch http://mirrors.sohu.com/ubuntu/dists/focal-proposed/main/binary-arm64/Packages404Not Found
E: Failed to fetch http://mirrors.sohu.com/ubuntu/dists/focal-backports/main/binary-arm64/Packages404Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
forlinx@ok3568:/etc/apt$
会出现404Not Found ；Ign，Err错误；
但我ping 163, aliyun是可以ping通的:
forlinx@ok3568:/etc/apt$ ping mirrors.163.com
PING mirrors163.ntes53.netease.com (60.191.80.11) 56(84) bytes of data.
64 bytes from 60.191.80.11 (60.191.80.11): icmp_seq=1 ttl=52 time=39.5 ms
64 bytes from 60.191.80.11 (60.191.80.11): icmp_seq=2 ttl=52 time=39.4 ms
64 bytes from 60.191.80.11 (60.191.80.11): icmp_seq=3 ttl=52 time=39.5 ms
64 bytes from 60.191.80.11 (60.191.80.11): icmp_seq=4 ttl=52 time=39.2 ms
64 bytes from 60.191.80.11 (60.191.80.11): icmp_seq=5 ttl=52 time=39.0 ms
64 bytes from 60.191.80.11 (60.191.80.11): icmp_seq=6 ttl=52 time=40.1 ms
64 bytes from 60.191.80.11 (60.191.80.11): icmp_seq=7 ttl=52 time=40.0 ms
64 bytes from 60.191.80.11 (60.191.80.11): icmp_seq=8 ttl=52 time=39.4 ms
64 bytes from 60.191.80.11 (60.191.80.11): icmp_seq=9 ttl=52 time=40.1 ms
64 bytes from 60.191.80.11 (60.191.80.11): icmp_seq=10 ttl=52 time=38.8 ms
^C
--- mirrors163.ntes53.netease.com ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9015ms
rtt min/avg/max/mdev = 38.766/39.496/40.142/0.427 ms
forlinx@ok3568:/etc/apt$ ping mirrors.aliyun.com
PING mirrors.aliyun.com.w.alikunlun.com (116.253.28.230) 56(84) bytes of data.
64 bytes from 116.253.28.230 (116.253.28.230): icmp_seq=1 ttl=54 time=37.5 ms
64 bytes from 116.253.28.230 (116.253.28.230): icmp_seq=2 ttl=54 time=33.1 ms
64 bytes from 116.253.28.230 (116.253.28.230): icmp_seq=3 ttl=54 time=37.8 ms
64 bytes from 116.253.28.230 (116.253.28.230): icmp_seq=4 ttl=54 time=37.2 ms
64 bytes from 116.253.28.230 (116.253.28.230): icmp_seq=5 ttl=54 time=37.3 ms
^C
--- mirrors.aliyun.com.w.alikunlun.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4004ms
rtt min/avg/max/mdev = 33.094/36.579/37.787/1.752 ms
需要使用默认镜像，不要修改下载源，看着是dns不识别这些下载源链接，默认的下载源是可以的。 forqs 发表于 2023-8-28 11:23
需要使用默认镜像，不要修改下载源，看着是dns不识别这些下载源链接，默认的下载源是可以的。
多谢指点！ 已经安装了。
总结： 开发板自带的sources.list真的可以用，原因是没有apt update，更新一下文件列表，再安装就可以了。
多谢forqs！！！:handshake
附log：
============
forlinx@ok3568:/etc/apt$ sudo apt update
Get:1 http://ports.ubuntu.com/ubuntu-ports focal InRelease
Get:2 http://ports.ubuntu.com/ubuntu-ports focal-updates InRelease
Get:3 http://ports.ubuntu.com/ubuntu-ports focal-backports InRelease
Get:4 http://ports.ubuntu.com/ubuntu-ports focal-security InRelease
Get:5 http://ports.ubuntu.com/ubuntu-ports focal/main arm64 Packages
Get:6 http://ports.ubuntu.com/ubuntu-ports focal/main Translation-en
Get:7 http://ports.ubuntu.com/ubuntu-ports focal/restricted arm64 Packages
Get:8 http://ports.ubuntu.com/ubuntu-ports focal/restricted Translation-en
Get:9 http://ports.ubuntu.com/ubuntu-ports focal/universe arm64 Packages
Get:10 http://ports.ubuntu.com/ubuntu-ports focal/universe Translation-en
Get:11 http://ports.ubuntu.com/ubuntu-ports focal/multiverse arm64 Packages
Get:12 http://ports.ubuntu.com/ubuntu-ports focal/multiverse Translation-en
Get:13 http://ports.ubuntu.com/ubuntu-ports focal-updates/main arm64 Packages
Get:14 http://ports.ubuntu.com/ubuntu-ports focal-updates/main Translation-en
Get:15 http://ports.ubuntu.com/ubuntu-ports focal-updates/restricted arm64 Packages
Get:16 http://ports.ubuntu.com/ubuntu-ports focal-updates/restricted Translation-en
Get:17 http://ports.ubuntu.com/ubuntu-ports focal-updates/universe arm64 Packages
Get:18 http://ports.ubuntu.com/ubuntu-ports focal-updates/universe Translation-en
Get:19 http://ports.ubuntu.com/ubuntu-ports focal-updates/multiverse arm64 Packages
Get:20 http://ports.ubuntu.com/ubuntu-ports focal-updates/multiverse Translation-en
Get:21 http://ports.ubuntu.com/ubuntu-ports focal-backports/main arm64 Packages
Get:22 http://ports.ubuntu.com/ubuntu-ports focal-backports/main Translation-en
Get:23 http://ports.ubuntu.com/ubuntu-ports focal-backports/universe arm64 Packages
Get:24 http://ports.ubuntu.com/ubuntu-ports focal-backports/universe Translation-en
Get:25 http://ports.ubuntu.com/ubuntu-ports focal-security/main arm64 Packages
Get:26 http://ports.ubuntu.com/ubuntu-ports focal-security/main Translation-en
Get:27 http://ports.ubuntu.com/ubuntu-ports focal-security/restricted arm64 Packages
Get:28 http://ports.ubuntu.com/ubuntu-ports focal-security/restricted Translation-en
Get:29 http://ports.ubuntu.com/ubuntu-ports focal-security/universe arm64 Packages
Get:30 http://ports.ubuntu.com/ubuntu-ports focal-security/universe Translation-en
Get:31 http://ports.ubuntu.com/ubuntu-ports focal-security/multiverse arm64 Packages
Get:32 http://ports.ubuntu.com/ubuntu-ports focal-security/multiverse Translation-en
Fetched 23.5 MB in 29s (825 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
263 packages can be upgraded. Run 'apt list --upgradable' to see them.
forlinx@ok3568:/etc/apt$ sudo apt-get install cutecom
Reading package lists... Done
Building dependency tree
Reading state information... Done
Suggested packages:
lrzsz
The following NEW packages will be installed:
cutecom
0 upgraded, 1 newly installed, 0 to remove and 263 not upgraded.
Need to get 92.8 kB of archives.
After this operation, 362 kB of additional disk space will be used.
Get:1 http://ports.ubuntu.com/ubuntu-ports focal/universe arm64 cutecom arm64 0.30.3-1build1
Fetched 92.8 kB in 2s (61.3 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package cutecom.
dpkg: warning: files list file for package 'lsb-base' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libzstd1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'adduser' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libpam-modules:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'bsdutils' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'grep' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libgpg-error0:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libhogweed5:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'liblz4-1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libpam-modules-bin' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'ncurses-bin' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libffi7:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libacl1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libunistring2:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libsmartcols1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libgcrypt20:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'coreutils' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libcrypt1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libidn2-0:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'diffutils' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'bzip2' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'ubuntu-keyring' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libaudit-common' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libgcc-s1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libsemanage-common' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libseccomp2:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'fdisk' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'debconf' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'perl-base' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libselinux1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'hostname' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'gcc-10-base:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libcap-ng0:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'ncurses-base' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libgnutls30:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libpam0g:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libgmp10:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'init-system-helpers' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libncurses6:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'sed' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libp11-kit0:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libaudit1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libuuid1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'util-linux' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libpcre2-8-0:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libncursesw6:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libfdisk1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libnettle7:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'findutils' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'mount' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'sensible-utils' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libmount1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'procps' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libattr1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'sysvinit-utils' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libtasn1-6:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'debianutils' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'mawk' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libdebconfclient0:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'base-files' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libbz2-1.0:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libsemanage1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'base-passwd' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libpam-runtime' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libdb5.3:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libblkid1:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libstdc++6:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libprocps8:arm64' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'dash' missing; assuming package has no files currently installed
dpkg: warning: files list file for package 'libtinfo6:arm64' missing; assuming package has no files currently installed
(Reading database ... 180721 files and directories currently installed.)
Preparing to unpack .../cutecom_0.30.3-1build1_arm64.deb ...
Unpacking cutecom (0.30.3-1build1) ...
Setting up cutecom (0.30.3-1build1) ...
Processing triggers for mime-support (3.64ubuntu1) ...
Processing triggers for gnome-menus (3.36.0-1ubuntu1) ...
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for desktop-file-utils (0.24-1ubuntu3) ...
forlinx@ok3568:/etc/apt$ cutecom -v
Invalid MIT-MAGIC-COOKIE-1 keyqt.qpa.xcb: could not connect to display :0.0
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.
Aborted (core dumped)
forlinx@ok3568:/etc/apt$
=================
回到桌面图形界面下，就可以运行cutecom了。
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