• Initramfs error after kernel upgrade. Problem solved


    The prompt that initramfs cannot find / root / host or 437 or VFS appears:   1. If root The disk is on the FAT32 partition, so the kernel option should incorporate the fat related and font 437 into the kernel, and select y.   2. If Ubuntu has been installed before, after upgrading the […]

  • The difference between the update commands Yum upgrade and Yum update in Linux


    There are two Linux upgrade commands: Yum upgrade and Yum update. These two commands are different: Copy code The code is as follows: yum -y update Upgrade all packages as well as software and system kernel Copy code The code is as follows: yum -y upgrade Only upgrade all packages, not software and system kernel […]

  • Upgrade process from CentOS 6. X to CentOS 7


    Just a few weeks after the release of Red Hat Enterprise version 7, CentOS 7 was also released, and included the same exciting features as red hat. In addition to the long-awaited SYSTEMd and the current popular docker, this release also makes it possible for the system to automatically update from version 6 to version […]

  • Four points for upgrading SQL Server 2014


    It’s not easy to upgrade, but there are some features that are worth your time. Here are some tips to avoid the upgrade problem. Upgrading a business critical SQL server instance is not easy; it requires thorough planning. The plan does not increase the possibility of encountering upgrade problems, thus affecting or delaying the upgrade […]

  • Methods of locking software version to prevent upgrade in CentOS system


    If you use the “Yum install Yum versionlock” command to install versionlock, it is the old version installed. Therefore, you can only manually edit the locking file / etc / Yum / pluginconf. D of versionlock/ versionlock.list To lock the version of the software, but not to the previous article that directly use the command […]

  • Vscode plug-in development strategy package, release, upgrade detailed tutorial


    1、 Release method After the plug-in is developed, how to release it and share it with others? There are three main methods Method 1: directly send the folder to others, let others find the directory where vscode plug-ins are stored and put it in it, and then restart vscode, which is generally not recommended; Method […]

  • The function and difference between sudo update and upgrade in Ubuntu


    At the beginning, the most urgent thing that I want to know about Linux is probably Chinese input method, and the other is how to install software. This article mainly talks about the features of Linux installation software. To install the software under windows, we only need to have the EXE file, and then double-click, […]

  • Install, upgrade and manage Java JDK environment under mac


    After Mac OSX 10.9, the system has brought its own Java 6 environment. The path is: Copy code The code is as follows: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home If you want to install and upgrade the environment to Java 7, the steps are as follows: 1. Download the installation package corresponding to JDK7 from Oracle official website,The address is […]

  • How to upgrade Mac OS 11.0


    At the WWDC 2020 developer conference held early this morning, apple officially released MacOS 11.0, which was named “Big Sur“. This update is also known by Apple as the biggest Mac OS update ever. The new MacOS 11.0 system brings new UI sub style design. How to upgrade Mac OS 11.0? Let’s take a look […]

  • Is MacOS Catalina 10.15.2 worth upgrading? What does MacOS Catalina 10.15.2 update


    What is updated in MacOS Catalina 10.15.2?Today, apple pushed the official version of MacOS Catalina 10.15.2. This official version has fixed a lot of bugs and errors, but it has not added any new features. The upgrade of the official version is only one month away from 10.15.1. It seems that Apple has found many […]

  • Which Apple devices can upgrade OS X El Capitan system


    Apple released the latest version of OS X El Capitan system at the WWDC 2015 developer conference. A netizen raised a question: which Apple devices can upgrade OS X El Capitan system? For this problem, the following editor will give you a detailed introduction! In Apple’s latest OS X El Capitan system, Safari browser will […]

  • How about MacOS Catalina


    On October 8, the first day after the National Day holiday, apple officially updated the Mac OS 10.15 version system, this time named after Catalina Island, a California landscape. Judging from this Mac OS update, apple is ambitious. There are many changes focused on the linkage with iPad, apple watch and other devices, and many […]