hwapan.blogg.se - Os x lion 10.7 download

Plug in your freshly prepared USB flash drive. Insert the Lion DVD into the computer's optical drive.ģ. The format process can take up to an hour depending upon the flash drive size.Ģ.

Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click the OK to return to the Erase window.

Click on the Erase tab in the DU main window.

Select the volume you just created (this is the sub-entry under the drive entry) from the left side list.

Click on the Partition button and wait until the process has completed. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button.

Under the Volume Scheme heading set the number of partitions from the drop down menu to one.Click on the Partition tab in the DU main window. After DU loads select your flash drive (this is the entry with the mfgr.'s ID and size) from the left side list.Open Disk Utility in your Utilities' folder.

Get a USB flash drive that is at least 8 GBs. Make A Bootable Lion or Mountain Lion USB Installerġ. Instead, it was booting from the local startup drive which had no installed system.ĭo you have a working copy of the Lion installer? Have you set the date back? If you have the Lion installer, then you can create a USB flash drive installer. I would guess that all four keys were not fully depressed during the startup.