[LINUX] After installing CentOS8 with VirtualBox, an error occurs when restarting

Until you install CentOS 8

Hello. It's been about half a month since I started programming Saya. I don't know right or left, but is Linux the natural OS for engineers? I heard the rumor that Not if you're happy with Progate! I hurriedly downloaded and installed CentOS 8 on my Macbook air using VirtualBox.

Why does almost nothing come out the moment I search for CentOS, which is a lot of programming information on Youtube etc.? Should I search for Linux?

Am I doing something wrong? Although I was worried, I read the Linux standard textbook recommended by my seniors and decided to download CentOS.

Linux standard textbook

However, there is a big wall for me who can only do everything by imitating the appearance ... It seems that the version has been upgraded even though it is CentOS 8 recently, and the above textbook did not mention version 8 ... I don't know everything anymore, but I was angry and decided to download it because I was wondering if the version had changed for the time being!

I searched for a site that has easy-to-understand procedures. There were some, but I would like to introduce the ones that I used as a reference.

・ [[ISO image] CentOS [GUI] was started with VirtualBox! !! !! ] (https://note.com/tango9512357/n/n6372aeb653db "[ISO image] I started CentOS [GUI] with VirtualBox !! ") -[Install CentOS 8 on VirtualBox on Mac and build a learning environment](https://bbbbruno.qrunch.io/entries/bIPvvDW3wwQ7LNsO "Install CentOS 8 on VirtualBox on Mac and build a learning environment" ")

After successfully downloading (I'll explain later, but I didn't), I thought I'd start a virtual machine with VirtualBox ...

After downloading CentOS, I created a virtual machine with VirtualBox and selected the boot hard disk, but I ran into the problem that there was no boot hard disk.

I wondered why, and when I tried to open the download file, it was empty ... First of all, the download was not done properly. For the first time, I learned that it takes less than 30 minutes to download ... What's more, I get a "failure" in the middle of downloading, but if I don't press it again and press it myself, it will end without downloading. Is it a problem with the specifications of the computer?

Even so, when I managed to reach the installation and finally felt relieved that it was over ... I rebooted after installation, but then I got the following error message.

「You must specify a machine to start, using the command line.

Usage: VirtualBoxVM --startvm <name|UUID> Starts the VirtualBox virtual machine with the given name or unique identifier (UUID).」

I searched a lot, but I don't know how to solve it ... By the way, I arrived at the following page, but I didn't know what to do when I saw the answer (crying).

Virtualbox cannot be started. .. ..

Solution

Still, I did not give up, and when I was searching, I found the following page !!!!

Cannot create Virtualbox virtual machine on Mac.

As you answered here ** Disable audio in VM settings ** As a result of doing that, I was able to use CentOS safely !!!

Thank you to those who asked and answered !!!!!!

Why i wrote this article

The article that led to the above solution also uses Ubuntu instead of CentOS. It may not be much different, but I thought it would be difficult to reach the answer even though there was so much information.

As a beginner, I experienced for the first time that it would be difficult to reach such an answer, so I wrote this article with the hope that even one beginner who is struggling with the same problems can be saved. .. It may be too low for seniors (laughs) I will grow more and output the technology !!!

By the way, I had a little trouble writing this Qiita article (laughs). Is there a way to change the font size? Am I the only one who doesn't come up even if I search normally? Changing the font size will be the next task ...

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