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by webdev
Sat Jul 04, 2020 7:01 am
Forum: Advanced users
Topic: USB dual boot for Raspberry Pi OS 32bit/64bit
Replies: 0
Views: 133

USB dual boot for Raspberry Pi OS 32bit/64bit

I wrote an article for USB dual boot, and how to install OS manually.

for more information, please visit page: https://www.spket.com/blog/raspberry-pi ... dual-boot/
by webdev
Fri Jul 03, 2020 9:44 pm
Forum: General discussion
Topic: Raspberry PI OS Lite keyboard localization??
Replies: 4
Views: 158

Re: Raspberry PI OS Lite keyboard localization??

just choose generic 104 for keyboard layout
by webdev
Fri Jul 03, 2020 9:39 pm
Forum: Ubuntu
Topic: How to manually install Ubuntu Server?
Replies: 7
Views: 272

Re: How to manually install Ubuntu Server?

I have an article about USB dual boot - https://www.spket.com/blog/raspberry-pi ... dual-boot/
It shows how to install OS manually, it's for Raspberry Pi OS, Ubuntu is similar.
by webdev
Tue Jun 30, 2020 10:37 am
Forum: Gaming
Topic: Celeste on the Raspberry Pi
Replies: 19
Views: 2714

Re: Celeste on the Raspberry Pi

snowballEarth wrote: ↑
Tue Jun 30, 2020 9:19 am
 Does Celeste work through Steam on TwisterOS on the pi4?
It's much cheaper to buy right now than at other places.
Bastion is XNA game too, it has a demo version, could you test it on Twister OS?
by webdev
Tue Jun 30, 2020 8:03 am
Forum: Gaming
Topic: Celeste on the Raspberry Pi
Replies: 19
Views: 2714

Re: Celeste on the Raspberry Pi

What's the FPS after overclocking?
Celeste also has OpenGL version, will it get batter FPS than XNA/FNA version?
by webdev
Tue Jun 30, 2020 7:30 am
Forum: Advanced users
Topic: /boot for different OS?
Replies: 2
Views: 180

Re: /boot for different OS?

Thanks, seems os_prefix in config.txt will do the trick
by webdev
Tue Jun 30, 2020 6:32 am
Forum: Advanced users
Topic: /boot for different OS?
Replies: 2
Views: 180

/boot for different OS?

I'm trying USB dual boot, /dev/sda2 is RPOS 32, /dev/sda3 is RPOS54, the problem is /dev/sda1, which can be shared between 2 OS? I know config.txt, cmdline.txt and kernel img need be different, what else?
by webdev
Tue Jun 30, 2020 6:23 am
Forum: General discussion
Topic: What's your screen resolution? (poll)
Replies: 20
Views: 626

Re: What's your screen resolution? (poll)

No others? 1680x1050p
by webdev
Mon Jun 29, 2020 8:20 pm
Forum: Troubleshooting
Topic: no /dev/input/event*
Replies: 3
Views: 120

Re: no /dev/input/event*

Thanks, I'm using USB dual boot, and use /boot from arm64 version for both OS. that cause the problem.
by webdev
Mon Jun 29, 2020 7:22 pm
Forum: Troubleshooting
Topic: no /dev/input/event*
Replies: 3
Views: 120

Re: no /dev/input/event*

Thanks, uname -r return 5.4.42-v7l+, but the folders under /lib/modules are 4.19.118+ 4.19.118-v7+ 4.19.118-v7l+ 4.19.118-v8+, why is that?
by webdev
Mon Jun 29, 2020 5:10 pm
Forum: Troubleshooting
Topic: no /dev/input/event*
Replies: 3
Views: 120

no /dev/input/event*

After switch to USB boot, X windows has no response to keyboard/mouse. after check Xorg.log, I find out that /dev/input/event* all missing. If I boot into 64bit OS, the mouse works fine on X windows,and there are 3 event* in /dev/input. what could cause this issue?
by webdev
Mon Jun 29, 2020 6:53 am
Forum: General discussion
Topic: RPi4 external USB3 SSD Enable and Check Trim
Replies: 27
Views: 6484

Re: RPi4 external USB3 SSD Enable and Check Trim

My sata to usb adapter does not support trim, so I have to plug SSD to sata and trim manually? how often should I do it?
by webdev
Wed Jun 17, 2020 1:40 pm
Forum: General discussion
Topic: STICKY: USB-MSD boot EEPROM fourth update - 2020-06-15
Replies: 193
Views: 21382

Re: STICKY: USB-MSD boot EEPROM third update - 2020-06-15

SD + SSD usb 3.0 will trigger undervoltage, SD + HDD usb 2.0 works fine,
after change to USB boot, I can plug in both SSD & HDD without tigger undervoltage, is that normal?
by webdev
Mon Jun 15, 2020 8:43 pm
Forum: Troubleshooting
Topic: undervoltage for SSD usb 3.0 but fine for HDD usb 2.0
Replies: 1
Views: 80

Re: undervoltage for SSD usb 3.0 but fine for HDD usb 2.0

no more undervoltage warning after change to boot from USB, the only difference is SD card was removed.how much power does SD card needed?
by webdev
Mon Jun 15, 2020 4:45 pm
Forum: General discussion
Topic: Sticky: USB-MSD boot EEPROM third update - 2020-06-12
Replies: 55
Views: 9137

Re: STICKY: USB-MSD boot EEPROM third update - 2020-06-12

Does /boot has to be FAT file system? does it has to be first partition of SSD? I place it as same partition of /, and it report "unable to read partition as fat",
by webdev
Sun Jun 14, 2020 5:22 pm
Forum: Troubleshooting
Topic: undervoltage for SSD usb 3.0 but fine for HDD usb 2.0
Replies: 1
Views: 80

undervoltage for SSD usb 3.0 but fine for HDD usb 2.0

I have 2 external storage, SSD usb 3.0 and HDD usb 2.0

HDD usb 2.0 is working fine.

SSD usb 3.0 will get undervoltage warning if cold booted(poweroff), no matter in USB 3 or USB 2 port. but it won't get undervoltage warning if I boot OS using sudo reboot!

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