![How to install macOS Sierra on a Mac Pro 5,1 (2010) when encountering the error “not a valid volume mount point” | by Nicklas Lind | Mac O'Clock | Medium How to install macOS Sierra on a Mac Pro 5,1 (2010) when encountering the error “not a valid volume mount point” | by Nicklas Lind | Mac O'Clock | Medium](https://miro.medium.com/v2/resize:fit:1100/1*a98bpKUCnSLaNkPaMEKjzg.png)
How to install macOS Sierra on a Mac Pro 5,1 (2010) when encountering the error “not a valid volume mount point” | by Nicklas Lind | Mac O'Clock | Medium
High Sierra clean install on new SSD - crashes to question mark - iMac Intel 21.5" EMC 2389 - iFixit
![I get this error when I try to install a new Mac OS on a new ssd drive. It's trying to instal OS Catalina. Mac OS 10.15.5 : r/applehelp I get this error when I try to install a new Mac OS on a new ssd drive. It's trying to instal OS Catalina. Mac OS 10.15.5 : r/applehelp](https://preview.redd.it/e81p98gqjuv81.jpg?width=640&crop=smart&auto=webp&s=b3866dfcbb1a65616e5b02cc85fd89a7eab82af3)
I get this error when I try to install a new Mac OS on a new ssd drive. It's trying to instal OS Catalina. Mac OS 10.15.5 : r/applehelp
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