Special thanks to MacPaw, creators of CleanMyMac X, for sponsoring our macOS screenshots walkthrough. Of course, if you prefer not to use third-party software, you can still use the excellent Terminal method, which is a little bit more involved, but requires no additional outside software.ĭo you like to create a bootable macOS USB installer to have on hand? If so, what’s your method of choice? From there, select Install macOS Mojave to load the macOS Utilities tool. Now it’s just a matter of connecting the drive to a Mac that you’d like to reinstall macOS on, powering off the machine, and rebooting it while holding the Option (⌥) key. Once completed, you’ll see a confirmation box. Step 10: On the warning screen, click Yes to proceed once you’re sure that the correct disk is selected and that it’s okay to erase its contents.ĭisk Drill will now go through the process of copying over the necessary files and making the USB drive bootable. Be sure to select the correct drive, because the entire contents of the selected drive will be erased. Step 9: Click Make Bootable next to your USB flash drive. Step 7: Disk Drill should automatically point to the macOS Installer location, but if not, you can click Locate installer on disk and point to the location in the /Applications folder manually. Step 6: In Disk Drill, click Create Boot Drive → OS X / macOS Installer. I didn’t mention before that they laptop doesn’t have the original Apple SSD in it…it was replaced long ago by an OWC 1 TB one…although that’s not likely anything to do with the issue.Subscribe to 9to5Mac on Youtube for more videos I’m happy to just ignore it since it’s not bothering me any more…but OTOH if I’ve roused anybody’s curiosity enough I’m more than happy to keep trying more suggestions…but initializing the volume and starting over is more work than I’m really interested in since everything appears to be just fine except I can’t delete the file. dmg, the package, or the flag/permission/something else entirely. So…there’s clearly something broke either with the. ![]() Tried Commander 1 running as admin user…no luck.Ĭan’t try TDM since I don’t have the right set of cables and adapters to connect TB2 to my iMac. Tried emptying trash with the option key…no luck. Tried those same commands on the SharedSupport directory above InstallESD.dmg…failed since directory not empty so didn’t try the Contents directory above that either. Operation not permitted even though I answered Y to the question override rw-r–r- root/wheel restricted for InstallESD.dmg? Yĭrwxr-xr-x 3 root wheel 96 Install macOS Mojave.appĪs root…followed tjluoma’s suggestions for chgflgs, chmod, and rm…result operation not permitted. dmg file from where it’s buried in the package. Went back to terminal, su to admin, su to root, tried to delete the. dmg file…right clicked and selected Mount and it mounted and opens just fine…so apparently the image itself isn’t damaged. Went to /tmp in Finder and drilled down to the. Yep…tried Disk Utility and fsck from the command line after doing su root…all is fine.ĭisk Utility does not show it as mounted under All Devices. OK…more info on this one…although since it’s now in /tmp/ at this point and no longer visible unless I go looking for it…and it’s not taking up but a few GB of drive space. Boot into single user mode maybe? Who knows. Offline install macOS using dmg file in recovery. I’m comfortable with slight to minimal user use of terminal but a command line geek I’m not…so I hope somebody smarter than me can point me to the obvious solution. So how do I get rid of this file…my guess is I need to chmod of some sort and/or then use some sort of rm command with the right magical incantation switches afterwards. ![]() Tried logging in as admin, launching terminal, and then su to root (I enabled the root user long ago) and then deleting it from terminal…no luck. Tried shift booting so nothing extraneous gets loaded and logging in as admin user…no luck. Moving the package to the trash requires admin credentials…but when I try to empty the trash I get “can’t be completed because the file is in use”. Get Info says system has R/W and wheel and everyone have R Only access…and I’m unable to change the access even when logged in as an admin user. ![]() Inside the package there’s a single file at Contents/SharedSupport/InstallESD.dmg. Confirm dmg/iso loaded on Disk Images section. Open Disk Utility, select File > Open Disk Image, open dmg/iso file you want to install. Running Big Sur and in /Users/Shared I’ve got a file named Install macOS Mojave so it’s been around through a couple of OS updates. Step to install macOS : Boot into recovery, if you boot recovery from internal hdd/ssd you need to disable SIP ( aka csrutil disable ) then reboot into recovery again. OK…I’ve got this undeletable file and can’t figure out how to get rid of it…rebooting doesn’t help.
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