1.Add Gnome/GUI to a minimal CentOS
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# yum groupinstall basic-desktop desktop-platform x11 fonts
And the “long name” version:
# yum groupinstall "Desktop" "Desktop Platform" "X Window System" "Fonts"
2.Redhat Linux yum grouplist and groupinstall
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# yum install yum-utils
To list software groups enter:
# yum grouplist
# yum groups info "RPM Development Tools"