Hi Trahern, Since you are already running Catalina, the easiest way to do the fresh install would be to do it from the Recovery partition.
• shutdown your computer. • start your computer while holding down the cmd and r keys together. Keep them down for about seven or eight seconds after the startup chime. If you do not have a chime on your computer, hold them down for about 10 seconds. • wait for a minute or more as the Recovery starts up, then press cmd-f5 to turn on VO. • select Disk Utility from the MacOS Utilities window, then Continue. • interact with the table of disks, and select the Macintosh HD. • stop interacting with the table, VO-left to the Toolbar and interact with it. • VO-space on the Erase button. • make sure that the name remains as Macintosh HD, format is APFS. • VO-space on the “Erase Volume Group” button. This will erase both the Macintosh HD and Macintosh HD Data volumes creating just one for the clean install. Pressing the Erase instead of the Erase Volume Group will not be a true clean install. • follow any prompts. • once it has finished, VO-space on the Done button. • press cmd-q to Quit Disk Utility. • select Reinstall MacOS from the table and press Continue. • follow the prompts agreeing to all things you need to agree with, choose the Macintosh HD and install the MacOS. Note that in this scenario, you do not need to download any installation app as a brand new copy is automatically downloaded from Apple and installed. Because you are already running Catalina, and because you used the cmd+r key combination when entering Recovery, you will get the newest version of that same MacOS. After it’s done its installation thing and restarted itself, you will be presented with the Language Chooser and the normal setup screens after a brand new clean installation. Good luck. Later… Tim Kilburn Jamf Certified Tech Apple Professional Learning Specialist Apple Teacher (with Swift Playgrounds Recognition) Fort McMurray, AB Canada > On Jun 17, 2021, at 7:17 PM, Trahern Culver <[email protected]> wrote: > > Hi Tim, thank you for your reply. Yes this is legitimate signed copy of the > installer. The Mac is already run in Catalina so I know this will Not be an > issue. > > On 17 Jun 2021, at 04:15, 'Tim Kilburn' via MacVisionaries > <[email protected]> wrote: > > Hi, > > My first questions is, where did you get the Catalina installer from? If it > is not a signed installer from Apple, you will have problems trying to > install it. Second, what system version is currently on the Mac? Finally, > are you positive that your 2012 MacBook Pro will support Catalina? It needs > to be the mid 2012 model or newer. > > Later… > > > Tim Kilburn > Jamf Certified Tech > Apple Professional Learning Specialist > Apple Teacher > (with Swift Playgrounds Recognition) > Fort McMurray, AB Canada > >> On Jun 16, 2021, at 8:52 PM, [email protected] <http://gmail.com/> >> <[email protected] <mailto:[email protected]>> wrote: >> >> Hi everyone hope you're doing well and staying safe. I have a 2012 MacBook >> Pro 8gb ram 1tb hd 2.9gb i7 dule core processer. I have an application file >> of the Catalina installer, I want to clean install Catalina on this Mac. >> When I open the application file absolutely nothing happeneds. Does anybody >> have any idea as to why this could be or how I can solve this problem? >> >> Thank you very much for your help good people take care and stay safe >> everybody :-) >> >> >> -- >> The following information is important for all members of the Mac >> Visionaries list. >> >> If you have any questions or concerns about the running of this list, or if >> you feel that a member's post is inappropriate, please contact the owners or >> moderators directly rather than posting on the list itself. >> >> Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: >> [email protected] <mailto:[email protected]> and your owner is Cara Quinn - you >> can reach Cara at [email protected] <mailto:[email protected]> >> >> The archives for this list can be searched at: >> http://www.mail-archive.com/[email protected]/ >> <http://www.mail-archive.com/[email protected]/> >> --- >> You received this message because you are subscribed to the Google Groups >> "MacVisionaries" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] >> <mailto:[email protected]>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/macvisionaries/53cf9a01-b0d1-4d6e-a36f-349735e760can%40googlegroups.com >> >> <https://groups.google.com/d/msgid/macvisionaries/53cf9a01-b0d1-4d6e-a36f-349735e760can%40googlegroups.com?utm_medium=email&utm_source=footer>. > > > -- > The following information is important for all members of the Mac Visionaries > list. > > If you have any questions or concerns about the running of this list, or if > you feel that a member's post is inappropriate, please contact the owners or > moderators directly rather than posting on the list itself. > > Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: > [email protected] and your owner is Cara Quinn - you can reach Cara at > [email protected] > > The archives for this list can be searched at: > http://www.mail-archive.com/[email protected]/ > <http://www.mail-archive.com/[email protected]/> > --- > You received this message because you are subscribed to a topic in the Google > Groups "MacVisionaries" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/macvisionaries/Dbt2n25AFi4/unsubscribe > <https://groups.google.com/d/topic/macvisionaries/Dbt2n25AFi4/unsubscribe>. > To unsubscribe from this group and all its topics, send an email to > [email protected] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/macvisionaries/DA435655-CFBA-4639-8E72-3FA9388F82CE%40me.com > > <https://groups.google.com/d/msgid/macvisionaries/DA435655-CFBA-4639-8E72-3FA9388F82CE%40me.com?utm_medium=email&utm_source=footer>. > > -- > The following information is important for all members of the Mac Visionaries > list. > > If you have any questions or concerns about the running of this list, or if > you feel that a member's post is inappropriate, please contact the owners or > moderators directly rather than posting on the list itself. > > Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: > [email protected] and your owner is Cara Quinn - you can reach Cara at > [email protected] > > The archives for this list can be searched at: > http://www.mail-archive.com/[email protected]/ > <http://www.mail-archive.com/[email protected]/> > --- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/macvisionaries/8CA0C77D-A9AF-4FA5-AC39-AA22D8CDA995%40gmail.com > > <https://groups.google.com/d/msgid/macvisionaries/8CA0C77D-A9AF-4FA5-AC39-AA22D8CDA995%40gmail.com?utm_medium=email&utm_source=footer>. -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: [email protected] and your owner is Cara Quinn - you can reach Cara at [email protected] The archives for this list can be searched at: http://www.mail-archive.com/[email protected]/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/macvisionaries/CF4E05F2-849A-44DD-B000-E403F11A79BB%40me.com.
