Ubuntu14.04 usage record (continuous update...) (update the handling of the Hash checksum inconsistency problem) (update the handling for downloading openjdk7)

 

table of Contents

Ubuntu official software source

IBus input method problem

Right click does not show to open the command line window

Bash: ./xxxx.sh insufficient permissions

deb software market

ubuntu official software source

Open the text file that requires permission in the text ratio editor

Replace sources.list with Alibaba source

When updating the source (launchpad.net source), the Hash checksum does not match

How to install the old version of openjdk7?

ppa scheme:

ubuntu scheme:

System backup to ISO

Correspondence between Ubuntu versions code

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Ubuntu official software source

Reference: https://packages.ubuntu.com/xenial/amd64/libusb-1.0-0-dev/download

I found that aptitude was originally the official recommended package manager. It seems that the official is not very optimistic about apt.

IBus input method problem

Reference: https://forum.ubuntu.org.cn/viewtopic.php?t=462077

Reference: https://blog.csdn.net/xiaofei19900927/article/details/79631323

Reference: https://blog.csdn.net/jirryzhang/article/details/78722800

Reference: https://blog.csdn.net/qq_35189442/article/details/90291330

To type Chinese confusion, turn off ShuangPin in the input method preferences, enable JianPin, and restart the system

Right click does not show to open the command line window

Reference: https://blog.csdn.net/xiangshangbashaonian/article/details/82831896

It's actually a matter of one line of command:

sudo apt-get install nautilus-open-terminal

Bash: ./xxxx.sh insufficient permissions

Move to other directories that can modify permissions for operations, such as /,/home, etc.

deb software market

Reference: https://linux.cn/article-8201-1.html

ubuntu official software source

Reference: https://packages.ubuntu.com/xenial/all/dpkg-dev/download

Open the text file that requires permission in the text ratio editor

sudo gedit <filePath>

Replace sources.list with Alibaba source

Reference: https://opsx.alibaba.com/mirror

Reference: https://developer.aliyun.com/mirror

Directly put the default (regular matching form)

http://.*?.ubuntu.com/

Replace with

http://mirrors.aliyun.com/

Can

The specific replacement rules are shown in the figure below

After that, save and execute

sudo apt update

Or (aptitude installed)

sudo aptitude update

 

When updating the source (launchpad.net source), the Hash checksum does not match

Reference: https://forum.ubuntu.org.cn/viewtopic.php?t=465499

Reference: https://www.jianshu.com/p/4ee6a75c7d36

In fact, broadband operators intercepted the download address and replaced it with the IP address of their own cache server. The specific test method is to open the error link in the browser, and you can find that the source address is not ppa.launchpad.net, and It is an IP address, this IP address is the operator's cache server address (the Great Wall broadband used in my community, I believe anyone who has used this garbage broadband knows the urgency of broadband)

This is the address after connecting my mobile phone hotspot. The source is obviously the original ppa.launchpad.net address, which is the same as the address bar above. After that, the update command is executed again as expected, and the execution is very smooth

How to install the old version of openjdk7?

The official source of openjdk7 has long been unsearchable, so you need to use other ways to obtain

ppa scheme:

deb http://ppa.launchpad.net/openjdk-r/ppa/ubuntu trusty main
deb-src http://ppa.launchpad.net/openjdk-r/ppa/ubuntu trusty main

Note: Trusty is a 14.04 system, please check the corresponding code for other versions of the system. Here I am looking for the method: directly find the official source suffix in the sources.list file of your own ubuntu system, and just copy it directly.

ubuntu scheme:

I just discovered that ubuntu also has a source station dedicated to serving the old version of ubuntu, reference: https://blog.csdn.net/anhuizhj/article/details/82900719

Specifically, replace http://.*?.ubuntu.com/ in /etc/apt/sources.list with http://old-releases.ubuntu.com/

It is the same as replacing it with Aliyuan above.

Then execute sudo apt-get install openjdk-7-jdk normally .

System backup to ISO

Reference: https://blog.csdn.net/weixin_39871788/article/details/82926696

Correspondence between Ubuntu versions code

Reference: http://www.mamicode.com/info-detail-2403104.html

From the above reference, I accidentally learned that the original official source only has the LTS version and the latest version released version, and the third-party source should also be the same as the official source.

And the non-LTS version of the last half a year ago can neither use official sources nor third-party sources, what should I do?

In fact, ubuntu has also taken into account, ubuntu has set up a source station specifically for these versions: http://old-releases.ubuntu.com/

That is the ubuntu solution I mentioned above