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Elecrow-RD / CrowPi2

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Fails to boot into X Window System desktop after resizing the swapfile #8

Open Pearl-852 opened 4 years ago

Pearl-852 commented 4 years ago

To reproduce:

  1. Open a Terminal.
  2. Enter the command: sudo nano /etc/dphys-swapfile
  3. Uncomment the lines:
    • CONF_SWAPFILE=/var/swap
    • CONF_SWAPFACTOR=2
  4. Comment the line:
    • CONF_SWAPSIZE=100
  5. Ctrl-X, Y, and Enter to save the changes and exit to the command-prompt.
  6. Invoke these three commands:
    • sudo dphys-swapfile swapoff
    • sudo dphys-swapfile setup
    • sudo dphys-swapfile swapon
  7. Reboot the system.

After reboot, you will be in the cli only. Even entering startx will not start the X Window System.

Pearl-852 commented 3 years ago

FYI, just flashed a new system SDCard from your released image file, crowpi2_release_v1.1.0_en.zip, and the same symptom still exists.

Note: Tested the lastest official RaspiOS image, Release date: August 20th 2020, and there is no problem at all.

Elecrow-RD commented 3 years ago

@Pearl-852 Please follow the steps below to resize the swapfile: STEP 1: Create swapfile and define it size

mkdir /swap 
cd /swap 
sudo dd if=/dev/zero of=swapfile bs=1024 count=2000000 
sudo mkswap swapfile

STEP 2: Active it:

sudo swapon swapfile

STEP 3: Modify the file "sudo nano /etc/fstab" by adding the following line:

/swap/swapfile  /swap  swap  defaults  0  0
Pearl-852 commented 3 years ago

@Elecrow-RD Thanks for your reply and instructions on how to create a separate swapfile. After my original report, I have been using a 2GB swap partition on a USB thumbdrive already. So, I am okay running my CrowPi2 with Pi3B+ installed without it freezing up when the system ran out of physical memory.

The issue I was reporting is why running your CrowPi2 system image would fail to boot into X Windows after resizing the dphys-swapfile, while do the same using the official Raspi OS system image has no problem at all.

I would appreciate if you can explain the differences and/or exact cause of this problem for my own learning experience. Thanks

Pearl-852 commented 3 years ago

Just flashed a new system SDCard with the latest release image file, crowpi2_release_v1.2.0_en_20210305.zip, and the same symptom still exists.