How can I uninstall Fedora 30 Server? it was installed into my HP MicroServer in minimal mode and then I will install CentOS 8.
There’s no need to uninstall Fedora. You can let the CentOS 8 installer wipe the disks during the installation.
CentOS 8 installer can’t find all disks.
Oh, it can’t find any disks at all? That is of course a problem.
This is, however, very unlikely to be related to the existing Fedora installation on those disks. The installers don’t care about what is on a disk, they just look for hardware. Something is going wrong with the CentOS installer’s hardware detection. Your best bet is to ask about this on the CentOS forums.
Noted with great thanks.
They told me to cancel all space by Fedora.
Can you please teach me to delete using Console ?
Sure, but just to make sure: There is nothing on those disks that you need to keep? The following will delete everything on your disks.
Since we can’t make the system gracefully delete itself, you’ll need to boot your server from a Live System. I don’t think the CentOS install images provide one, but you can use a Fedora Workstation Live image.
Boot your server into the live system & open a terminal.
If you want, I can explain how to delete everything from the command line/console, but you can also use the graphical tools that the Fedora image provides:
Open the ‘Disks’ program. On the left you will see a list of all the hard drives, CD/DVD drives and block devices on your server. We’re only interested in hard drives. If you booted from an USB stick, one of the hard drives will actually be your USB stick, you can tell which one by clicking on them: One of them will have partitions named Fedora-WS-Live-… and anaconda - leave that alone.
Select the hard drive you want to delete, then click the Drive Options-Button (three dots, top-right) → Format Disk…
The default options should be fine, hit Format… & confirm. This will remove everything from that disk.
If you have multiple disks installed, repeat for any other disks.
I have installed CentOS 7.
CentOS 7 could solve this question.
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