As the title says I have a mid-2010 27" iMac (https://everymac.com/systems/apple/imac/specs/imac-core-i7-2.93-27-inch-aluminum-mid-2010-specs.html) that is having issues with booting to an operating system from the internal hard drive, or from anywhere.
Originally it had some version of Mac OS X on it, but I got it used and it had a password, so I booted into the recovery utility and ran some commands to get around the password. I got the password removed and it restarted into an unlocked computer, one time. The next time I tried to use it it said something about an invalid node structure and it refused to boot OS X. As a result I created a Ubuntu install USB and installed Ubuntu, that worked for a while, but now it shows me the white screen, then it has like a burgandy color scroll down the screen, then it just stays on a black screen and does nothing, at all.
Please let me know if you can help any.
Originally it had some version of Mac OS X on it, but I got it used and it had a password, so I booted into the recovery utility and ran some commands to get around the password. I got the password removed and it restarted into an unlocked computer, one time. The next time I tried to use it it said something about an invalid node structure and it refused to boot OS X. As a result I created a Ubuntu install USB and installed Ubuntu, that worked for a while, but now it shows me the white screen, then it has like a burgandy color scroll down the screen, then it just stays on a black screen and does nothing, at all.
Please let me know if you can help any.