Linux Tutorials - Herong's Tutorial Examples - v5.37, by Dr. Herong Yang
Install CentOS by Deleting Existing Partition
Provides a tutorial example on how to delete existing hard disk partition to free up space to install CentOS system on Lenovo computers.
If you don't have enough free space (un-partitioned space) on the hard disk, CentOS installation program will force you to select which existing partition to delete to free up space for the new CentOS system. Here is what I did on my second Lenovo computer.
1. Boot the computer from the CentOS bootable USB drive.
2. Continue the installation process until the installation summary screen. I see that the "Installation Destination" in the system section is highlighted with a warning.
2. Click on "Installation Destination" link. I see the "Installation Destination" configuration page with two storage devices listed: the internal hard disk and the bootable USB. The hard disk is fully partitioned with only 2.55 MB free space left.
3. Select the internal hard disk as the installation destination. And check the "I would like to make additional space available" checkbox.
4. Click "Done" button. I see a warning message saying that there is not space to install CentOS. But I can use the built-in space reclaim tool to shrink or delete existing partitions.
5. Click "Reclaim Space". I see 3 partitions on my hard disk listed.
6. Select the third partition, which has junk data on it. And click "Delete" to free up enough space for the CentOS system.
7. Click "Reclaim Space" again to go back to the installation summary screen.
8. Click "Begin Installation" to finish the installation process.
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