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by Brad Q
Sun Oct 13, 2019 12:21 am
Forum: General discussion
Topic: Raspberry Pi 4 Heatsink vs Fan vs Flirc Case
Replies: 68
Views: 17180

Re: Raspberry Pi 4 Heatsink vs Fan vs Flirc Case

My Flirc case typically idled at 50C in a 75F room. Under full extended(hour) load it never exceed 74C but ran up to 70C in a heartbeat. After a few months I have added a 12V 120mm fan running on 5V. One foot away it is dead quiet(the reason for using 120mm). It now idles at 36C in 75F room and neve...
by Brad Q
Fri Oct 11, 2019 8:48 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian from USB Devices : Made Easy

Ron

You seeing any performance degradation after today's update? It included a bootloader update. It could just me. But it feels a little off? It would not necessarily be due to usb-boot.
by Brad Q
Sun Aug 18, 2019 11:18 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian on USB Devices : Made Easy

Tried changing the fstab back and got the same result. This was while you posting. " cat /etc/fstab proc /proc proc defaults 0 0 /dev/mmcblk0p1 /boot vfat defaults 0 2 PARTUUID=9a9f084e-02 / ext4 defaults,noatime 0 1"
by Brad Q
Sun Aug 18, 2019 11:09 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian on USB Devices : Made Easy

"[email protected]:~/Holding $ sudo ./usb-boot-test-2

SD card must remain in place to boot the USB device"

Immediately after selecting sda and hitting enter, it dies. I think it is looking for 1 but 6 is still there.
by Brad Q
Sun Aug 18, 2019 10:53 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian on USB Devices : Made Easy

Before running this do I need to re-edit the fstab (6 back to 1?
by Brad Q
Sun Aug 18, 2019 10:07 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian on USB Devices : Made Easy

Sure. I suspect that the Pi4 is going to open up a new avalanche of users. People looking for a cheap general desktop that uses very little power (vs 240w standard desktop)and very little space. If the 64bit version of Raspbian really winds up adding an additional 10% performance, so much the better...
by Brad Q
Sun Aug 18, 2019 9:48 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian on USB Devices : Made Easy

"[email protected]:~ $ cat /etc/fstab proc /proc proc defaults 0 0 /dev/mmcblk0p6 /boot vfat defaults 0 2 PARTUUID=9a9f084e-02 / ext4 defaults,noatime 0 1 # a swapfile is not a swap partition, no line here # use dphys-swapfile swap[on|off] for that" The ls -l seems (cursory look) to match to yours as...
by Brad Q
Sun Aug 18, 2019 9:03 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian on USB Devices : Made Easy

As predicted:

"/dev/mmcblk0p1 /boot "

So all I need to do is edit the fstab from 1 to 6?
by Brad Q
Sun Aug 18, 2019 6:49 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian on USB Devices : Made Easy

I said from the start that I probably missed something simple. Yep, I used NOOBs.

That being said, it does work (with my one edit).

Thanks
by Brad Q
Sun Aug 18, 2019 5:20 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian on USB Devices : Made Easy

mount command: "/dev/mmcblk0p7 on /media/fred/root type ext4 (rw,nosuid,nodev,relatime,uhelper=udisks2)" "/dev/mmcblk0p6 on /media/fred/boot type vfat (rw,nosuid,nodev,relatime,uid=1001,gid=1001,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,showexec,utf8,flush,errors=remount-ro,...
by Brad Q
Sun Aug 18, 2019 5:12 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian on USB Devices : Made Easy

There is no /tmp/usb From sd card cmdline.txt: #dwc_otg.lpm_enable=0 console=tty1 root=/dev/mmcblk0p7 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles dwc_otg.lpm_enable=0 console=tty1 root=PARTUUID=9a9f084e-02 rootfstype=ext4 elevator=deadline ...
by Brad Q
Sun Aug 18, 2019 6:14 am
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian on USB Devices : Made Easy

"[email protected]:~/Holding $ sudo ./usb-boot-test sed: can't read /tmp/usb-boot-mnt/cmdline.txt: No such file or directory SD card must remain in place to boot the USB device" To me it looks like it is trying to edit the one on the usb flash drive. Does it not want to edit the one on the micro sd c...
by Brad Q
Sat Aug 17, 2019 10:50 pm
Forum: Advanced users
Topic: Running Raspbian from USB Devices : Made Easy
Replies: 132
Views: 40087

Re: Running Raspbian on USB Devices : Made Easy

Ron Ran into a little issue. I am sure I just missed something. The script formats the drive and copies all the data over(as far as I can tell). But it does not edit the cmdline.txt file. In my case it is locate in /boot . "[email protected]:~/Holding $ sudo ./usb-boot sed: can't read /media/cmdline....
by Brad Q
Fri Aug 16, 2019 1:34 am
Forum: General discussion
Topic: Fan failure?
Replies: 15
Views: 757

Re: Fan failure?

I think that there must be QUITE a bit of variation in the Pi4 boards. Most peoples' numbers track like yours, but I have talked to several others whose boards track like mine. When I first put mine in the Flirc case it was idling at about 57C in a 75F room(after the firmware update). The case was w...
by Brad Q
Thu Aug 15, 2019 9:02 pm
Forum: General discussion
Topic: Fan failure?
Replies: 15
Views: 757

Re: Fan failure?

You might want to just look into a Flirc case ($20 with shipping). The top half is all aluminium and acts as a big heat sink(no fan and none needed). For anything pre Pi4 they are more than enough case to keep it cool. For the Pi4 they are right on the edge, for moderate use they are fine.
by Brad Q
Wed Aug 14, 2019 1:08 am
Forum: General discussion
Topic: 64-bit weekly kernel autobuilds for RPi4 released (bcm2711_defconfig)
Replies: 94
Views: 9542

Re: 64-bit weekly kernel autobuilds for RPi4 released (bcm2711_defconfig)

webbsmurfen wrote:
Mon Aug 12, 2019 7:23 am

Just a notice..
Dont use more than 3Gb ( total_mem=3072 ) else the USB/Ethernet will start to behave erratic and malfunction
Could you expand on this a little? Is it just for the 64 bit stuff or does it apply to the standard 32 bit stuff?

Thanks
by Brad Q
Tue Aug 13, 2019 6:13 pm
Forum: General discussion
Topic: Why moving to 64bit?
Replies: 259
Views: 20244

Re: Why moving to 64bit?

Having been around when Fedore Core (FC4)(and yes it used to be Fedora Core and not just Fedora) was making it's jump to mainstream the 64 bit version, most of this thread is just replaying old music. Which is pretty amusing. One of the "problems" I see is that the nature of Pi machines seem to be i...
by Brad Q
Tue Aug 13, 2019 9:33 am
Forum: Troubleshooting
Topic: pi 4B not showing Video on HDMI0 if memory split set to 896MB
Replies: 23
Views: 1378

Re: pi 4B not showing Video on HDMI0 if memory split set to 896MB

I am not familiar with the way that edit system is setup but if I am reading it correctly it is still not right. My pi4 will not boot with the gpu_mem set to 944 or 896. So assuming that the prior versions would, there needs to be some note on there about that. While I have not tried anything betwee...
by Brad Q
Tue Aug 13, 2019 8:05 am
Forum: Troubleshooting
Topic: pi 4B not showing Video on HDMI0 if memory split set to 896MB
Replies: 23
Views: 1378

Re: pi 4B not showing Video on HDMI0 if memory split set to 896MB

The total memory available does seem to track with the amount allotted to the gpu, as long as the amount is bootable. The 512 vs 512 plus thing tracks with what I am seeing. 512 better, greater than 512 no noticeable difference. Is there any limitation on ethernet tied to the first 1gb of memory? My...
by Brad Q
Tue Aug 13, 2019 7:06 am
Forum: Troubleshooting
Topic: pi 4B not showing Video on HDMI0 if memory split set to 896MB
Replies: 23
Views: 1378

Re: pi 4B not showing Video on HDMI0 if memory split set to 896MB

I have zero (0) idea why or any real understanding of what is going on under the hood. You asked for where the documentation conflicted with what you were saying and I provided it.
by Brad Q
Tue Aug 13, 2019 2:35 am
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 245
Views: 20508

Re: Pi4 as Desktop computer

schorsch76 Not sure if you care or not at this point but: I ran into a similar issue with Firefox on a number (not all) of websites(including amazon). I wound up getting the useragent addon for FF set it for 32bit (linux i686), shut down FF, restart it and all was back to normal. I THINK that it som...
by Brad Q
Tue Aug 13, 2019 1:20 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159734

Re: Raspberry Pi 4 temperature

The sad thing is I SHOULD have remember that as shortening the "wiring" was one of the reasons stated for relocating the Ethernet port.

Well it is good to know that I am well below the threshold for the SD card. Thanks for that.
by Brad Q
Tue Aug 13, 2019 1:11 am
Forum: Troubleshooting
Topic: Pi 4 ethernet dropping often
Replies: 5
Views: 346

Re: Pi 4 ethernet dropping often

I am seeing a similar issue with the Ethernet connection. In my case it seems to "self heal" in a couple of minutes. Other Non internet things (play a local(on sd card) video seem fine). Running a Flirc case with a Pi4-4Gb connected to an asus router. Cables have been swapped out. Ports have been sw...
by Brad Q
Tue Aug 13, 2019 12:58 am
Forum: Troubleshooting
Topic: pi 4B not showing Video on HDMI0 if memory split set to 896MB
Replies: 23
Views: 1378

Re: pi 4B not showing Video on HDMI0 if memory split set to 896MB

"GPU memory in megabytes, sets the memory split between the CPU and GPU; the CPU gets the remaining memory. The minimum value is 16; the maximum value is 192, 448, or 944, depending on whether you are using a 256MB, 512MB, or 1024MB Pi. The default value is 64. For the Raspberry Pi 4, which is avail...
by Brad Q
Tue Aug 13, 2019 12:41 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159734

Re: Raspberry Pi 4 temperature

Another Flirc case user here. With Thunderbird and 2-3 Firefox windows(not tabs) open it idles (nothing going on in any of the windows) and holds in the 50-59c range in a 75F room. My particular Pi4-4gb seems to run a little warmer than most. However I can run 4 core sysbench (100% cpu) and never ex...

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