如何加快Mac上Linux的启动速度？Mac Mini单系统启动慢求助

Hey there, let's dig into that frustrating 90-second boot time you're dealing with—gray screen for 40 seconds, then a "no signal" blackout, before finally getting to the Linux splash screen. Your 2007 Mac Mini with Core 2 Duo and 1GB RAM should boot Lubuntu way faster than that, so here are the most targeted fixes to try:

1. Tweak GRUB Boot Parameters (Most Likely Fix for Gray/Black Screen) #

The gray screen and "no signal" gap are almost certainly related to your Intel GMA 950 graphics card struggling with early-stage initialization. Let's adjust GRUB to skip that problematic step:

• Open the GRUB config file with: sudo nano /etc/default/grub
• Find the line starting with GRUB_CMDLINE_LINUX_DEFAULT. Replace its contents with:

  GRUB_CMDLINE_LINUX_DEFAULT="nomodeset quiet splash"
  

  nomodeset forces the system to use a generic graphics driver instead of trying to initialize the GMA 950 early, which should eliminate the gray/black screen delay.
• Save and exit nano (Ctrl+O, then Ctrl+X), then update GRUB with: sudo update-grub
• Reboot and see if the boot time improves.

If nomodeset doesn't fully fix it, try adding video=efifb:off to the same line (this disables the EFI framebuffer, which can conflict with Linux on older Macs):

GRUB_CMDLINE_LINUX_DEFAULT="nomodeset video=efifb:off quiet splash"

2. Disable Unnecessary Startup Services #

Lubuntu might be loading services you don't need, which adds to boot time. Let's trim those:

• First, check which services are taking the longest to start with: systemd-analyze blame
• For any service you don't use (like Bluetooth, printer services, or remote desktop), disable it with:

  sudo systemctl disable <service-name>.service
  

  Examples: sudo systemctl disable bluetooth.service or sudo systemctl disable cups.service (if you don't use a printer)
• Reboot to apply the changes.

3. Check EFI/BIOS Settings #

Older Macs can have EFI quirks that slow down Linux boot:

• Reboot your Mac and hold the Option key during startup. You'll see boot options—make sure your Lubuntu drive is set as the primary boot device.
• If you can access the EFI setup (some 2007 Macs let you enter it via holding Command+Option+O+F at boot), check if there's an option to switch to "Legacy BIOS" mode instead of EFI. Linux often boots more smoothly in Legacy mode on older Mac hardware.

4. Inspect Hard Drive Health #

An aging mechanical hard drive is a common culprit for slow boots. Let's check its condition:

• Install the smartmontools utility: sudo apt install smartmontools
• Run a health check on your drive (replace /dev/sda with your drive identifier if needed):

  sudo smartctl -a /dev/sda
  

• Look for the "SMART overall-health self-assessment test result" line. If it says "FAILED", your drive is failing and needs replacement. Even if it passes, consider upgrading to an SSD—this will drastically cut boot times on old Macs (your 2007 Mini uses a 2.5-inch SATA drive, which is easy to replace).

5. Optimize File System (For SSDs) #

If you do switch to an SSD, enable TRIM to keep it fast:

• Open your fstab file: sudo nano /etc/fstab
• Find the line for your root partition (it'll start with UUID= and end with / ext4 ...). Add discard to the options:

  UUID=your-drive-uuid / ext4 errors=remount-ro,discard 0 1
  

• Save and exit, then run a manual TRIM: sudo fstrim /
• Reboot to apply the setting.

Start with the GRUB parameter tweak first—it's the quickest fix for the gray/black screen issue. If that doesn't solve it, work your way through the other steps.

内容的提问来源于stack exchange，提问作者August Karlstrom