#Imac 27 late 2013 os upgrade for free#
#Imac 27 late 2013 os upgrade how to#
#Imac 27 late 2013 os upgrade install#
#Imac 27 late 2013 os upgrade upgrade#

Perusing further, I found Apple-compatible SSDs for around 30 cents per gigabyte. OWC’s compatible drives on Newegg were 40 cents per gigabyte, and Apple’s on Amazon were an incredible $1 a gigabyte! This is 2019: standard M.2 2280 NVMe SSDs start at 15 cents per gigabyte! A huge issue is that Apple uses proprietary connectors. Finding a NVMe SSD for the upgradeĪs I intimated, there was never any question that the NVMe SSD could be upgraded, just whether it could be done for a reasonable price.

#Imac 27 late 2013 os upgrade upgrade#

With the disclaimers out of the way, here’s how you can upgrade an iMac’s NVMe SSD with something cheaper, faster, and more capacious. If you’re careful, you shouldn’t, but stuff happens. You also run the risk of permanently damaging your iMac. Finished.ĭid the installation work for you? Have you had any problems? Or do you not have such an old Mac and don’t want to try beta software? Write to us about your experiences.Another disclaimer: if your iMac is still under warranty, this will void it.

#Imac 27 late 2013 os upgrade install#

Restart the target Mac while holding down the Option key to boot from the stick and install macOS Big Sur. Wait a bit and then disconnect the flash drive and insert it into the target Mac. Now drag patch_installer.sh into the terminal again and then also drag the icon for the new installer partition from the stick that was just created into the terminal and press Enter. Now drag the installer.sh into the terminal window and press Enter. And so it continuesĮnter xattr -c in the terminal, followed by a space. The script patch_installer.sh is included in the zip file. This must be unpacked in a separate directory. The tool listed above is saved in a ZIP file. The admin password and the user’s consent are then required. This can be found under “View / All devices”.Įnter the command sudo / Applications / Install macOS Beta.app/Contents/Resources/createinstallmedia –volume in the terminal and put a space behind it, now drag the icon from the USB stick into the terminal window to insert the path and press Enter. The USB stick must be formatted with “macOS Extended (Journaled)”, whereby the “GUID Partition Map” scheme is required. The installation package is opened on a Mac and thus extracted. We tried Parrotgeek’s instructions and lo and behold – it works. This tool is also available free of charge. In addition, a tool from the Reddit commentator ASentientBot is required, which Parrotgeek has modified.

#Imac 27 late 2013 os upgrade for free#

In addition to the USB stick with at least 16 GB, the macOS Big Sur installation package from Apple is required, which you can download for free and completely legally. If the installation fails, it can result in a complete data loss! We accept no liability for damage.

The built-in WLAN does not work for Macbooks and Mac Minis, but operation is possible via Ethernet.īack up the Mac on which you want to install Big Sur. iMac (21.5-inch, late 2013) discrete GPU.iMac (21.5-inch, late 2013) integrated GPU.MacBook Pro (Retina, 13-inch, early 2013).MacBook Pro (Retina, 15-inch, mid-2012).You can unofficially install Big Sur on these Macs

#Imac 27 late 2013 os upgrade how to#

The Parrotgeek website has figured out how to install macOS Big Sur on older Macs and what the drawbacks are. All you need is a slightly larger USB stick, which should offer at least 16 GB of storage space. The operating system runs with a small installation trick even on older Macs. There are also installation instructions, of which we picked one. Apple states that macOS Big Sur can only be installed on these devices:īut that’s not entirely true, as numerous submissions and videos on Reddit show. Reddit has brought together numerous users who want to install Big Sur on an old Mac.