19-05-2021

Download Manager Mac Os X

I typically don't like to publicly shame a company on a forum for bugs, but this bug is critical IMO and I reported over a year ago (as in submitted bug report ticket #272855). If you do a file integrity hash value check, FDM computes the hash and displays it. The letters A through F, if any in the hex number are all lower case. If you enter a hash value to compare against using CAPITAL letters, the file integrity will fail with the message 'Verification Failed', giving the user the impression that the download is no good. If you enter the hash value using lower case letters, the comparison returns valid (obviously, the hash value you enter must be correct, capitial or lower case). IMO, this is a critical bug, because a user may try to re-download a file over and over and over, thinking he has a corrupted file, when in fact the file is fine. And honestly, for a file download program, getting hash value comparison is pretty essential, if you're going to even offer that functionality , it has to be right. For a real large file (think Apple OS updater), this is a lot of wasted time and bandwidth. And all because of simple error between using Capital vs lower case letters.The bug is so obvious; the program is comparing what the user enters directly to the hash value it calculated, as a string comparison. ONE line of code in the C language will perform a case conversion on a string; problem solved. Disappointing, otherwise, great download manager.

By default, your Mac starts up from its built-in hard disk, but a startup disk can be any storage device that contains an operating system compatible with your Mac. For example, if you install macOS on an internal or external drive, your Mac can recognize that drive as a startup disk. You can then follow the steps in this article to start up from it.

Use Startup Disk preferences

When you use Startup Disk preferences to select a startup disk, your Mac starts up from that disk until you choose a different one.

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  1. Choose Apple () menu > System Preferences, then click Startup Disk.
  2. Click and enter your administrator password.
  3. Select your startup disk, then restart your Mac.

If you see a message that your security settings do not allow this Mac to use an external startup disk, check the External Boot setting in Startup Security Utility.

Use Startup Manager

When you use Startup Manager to select a startup disk, your Mac starts up from that disk once, then returns to using the disk selected in Startup Disk preferences.

Internet download manager (idm) for mac os xDownload Manager Mac Os X
  1. Press and hold the Option key immediately after turning on or restarting your Mac.
  2. Release the Option key when you see the Startup Manager window.
    If your Mac is protected by a firmware password, you can release the key when you're asked to enter the password.
  3. Select your startup disk, then click the arrow under its icon, or press Return.
    If you press and hold the Control key during this step, your selection is saved in Startup Disk preferences, so it persists until you change it.

If your Mac is using OS X Lion 10.7.3 or later, you can also use this method to start up from your Time Machine backup disk. Startup Manager identifies your Time Machine backup as ”EFI Boot.”

If you can't select your startup disk or start up from it

Check for these possibilities if you can't see your disk in Startup Disk preferences or Startup Manager, or your Mac won't start up from it.

Check for a valid operating system on the startup disk

Make sure that your startup disk is using a version of macOS that's compatible with your Mac. You might need to reinstall macOS on that disk.

Download Manager Mac Free

Check startup security settings

Free Download Manager Mac Os X 10.7

If you're using a Mac that has the Apple T2 Security Chip, check the settings in Startup Security Utility. These settings determine whether your Mac can start up from another disk.

Check for Option ROM firmware

If you're in Startup Manager and can't see your startup disk, press Option-Shift-Command-Period. If that works, do this each time you want to start up from the device or from a startup disk connected to it.

To enhance system security, Mac computers with up-to-date software don’t show devices that have Option ROM firmware until you press these keys in Startup Manager to load the firmware. On Mac models from early 2015 or earlier, you can disable this security feature to load Option ROM firmware automatically. This removes an important protection against potential unauthorized access to your Mac by other people with physical access to it.

  1. Open the Terminal app, which is in the Utilities folder of your Applications folder.
  2. Type sudo nvram enable-legacy-orom-behavior=1, then press Return.
    To undo this command, enter sudo nvram -d enable-legacy-orom-behavior.

If you're using a firmware password on your Mac, the ability to load Option ROM firmware automatically or manually is disabled as an additional security protection. If you want to remove this additional protection but keep your firmware password:

  1. Open the Terminal app, which is in the Utilities folder of your Applications folder.
  2. Type this command, then press Return:
    sudo firmwarepasswd -setmode command -allow-oroms
    To undo this command, enter sudo firmwarepasswd -setmode command.
  3. Type the administrator password for your user account, then press Return.
  4. Type your firmware password, then press Return.
  5. Restart your Mac.