I want to sell my old iMac 27" so I secure formatted HDD with APFS and tried to install macOS (CMD + R) but installation is aborted with an error:

It is not possible to install mac OS on your computer. An error occurred when configuring file attributes. Finish the installer to restart the computer and repeat the operation.

I reseted SMC, PRAM but it is not success.I used WiFi, I used wired connection — no success. HDD S.M.A.R.T. is OK. I tried installation process many times but always get this error. What can be wrong?

enter image description here

  • @agarza - though i can't read Russian myself, the bold section would appear to already be what you're requesting.
    – Tetsujin
    Commented Oct 1, 2022 at 17:02
  • Re-download the Installer, in case it's got corrupted somehow. Check that you can install onto another drive. I'd also use Disk Utility to verify the hard drive -- which after 9 years is likely to be on its last legs anyway.
    – benwiggy
    Commented Oct 1, 2022 at 17:16
  • 2
    Bold text in my message is translation of the error on screenshot)
    – Dmitry
    Commented Oct 1, 2022 at 20:13
  • @benwiggy HDD is ok. SMART is ok. Disk Utility verifying OK.
    – Dmitry
    Commented Oct 1, 2022 at 20:16
  • Is Apple boycotting Russia ?
    – Ruskes
    Commented Oct 1, 2022 at 23:11

1 Answer 1


Try this:

  1. Download macOS Catalina full installer somewhere (i.e. App Store, Terminal or via torrent)
  2. Create installation media using USB flash drive (i.e. this guide)
  3. Boot from installation media
  4. Launch Terminal and set computer date to approximate date of macOS Catalina you downloaded, i.e. for version 10.15.7 use command date 093023592020 (September 24, 2020)
  5. Exit Terminal and launch macOS installer

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