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by ejolson
Thu Sep 20, 2018 3:06 am
Forum: General discussion
Topic: Raspbian stretch iscsi root will not boot after kernel upgrade
Replies: 3
Views: 109

Re: Raspbian stretch iscsi root will not boot after kernel upgrade

They all run using only /boot on a microsd card and all other data stored on iscsi partitions. I've been thinking about setting up a similar system. Sorry to hear about the initial RAM filesystem problems. I recently had a similar issue when upgrading a system with BTRFS root. I know two approaches...
by ejolson
Tue Sep 18, 2018 9:04 pm
Forum: Raspbian
Topic: 64-bit EXT4: breaking the 16TB limit
Replies: 10
Views: 346

Re: 64-bit EXT4: breaking the 16TB limit

On the Pi 3 B+, it's been running 8 drives connected via two USB to 4-disc SATA bridges rather than individual USB-to-SATA bridges plugged into USB hubs, so lsusb -v --tree only shows three devices, the ethernet interface and the two SATA bridges, it's now done 7 TBytes in RAID 6 so fairly solid. T...
by ejolson
Tue Sep 18, 2018 5:11 am
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 430
Views: 28214

Re: Raspberry Pi 3 B+ lockups

I'll give that a shot and post results I haven't had any crashes with overvoltage set at 2. Still no crashes/reboots, and arm_freq is at 1100 with the over voltages set to 2 Probably this thread is the most relevant for Pi 3B crashing under load. If you have the time, reading the entire thread is i...
by ejolson
Tue Sep 18, 2018 12:15 am
Forum: Raspbian
Topic: 64-bit EXT4: breaking the 16TB limit
Replies: 10
Views: 346

Re: 64-bit EXT4: breaking the 16TB limit

It'll be worth a try so thanks for the suggestion and link You're welcome. There are reports that the Raspberry Pi hardware is only able to deal with 6 high-speed USB2 devices at a time. Assuming your RAID6 24TB array is in the form of five 8TB drives or six 6TB drives things should be fine. Howeve...
by ejolson
Mon Sep 17, 2018 7:04 pm
Forum: Raspbian
Topic: 64-bit EXT4: breaking the 16TB limit
Replies: 10
Views: 346

Re: 64-bit EXT4: breaking the 16TB limit

Sorry but this is getting a little off the original topic (I've done BTRFS RAID in the past, not going there again), I'm looking to see if anyone has any experience with firing up large EXT4 filesystems on a Pi, it looks like a "no" at the moment, I'll play around with it a little more and post bac...
by ejolson
Mon Sep 17, 2018 2:29 pm
Forum: Raspbian
Topic: 64-bit EXT4: breaking the 16TB limit
Replies: 10
Views: 346

Re: 64-bit EXT4: breaking the 16TB limit

No, it's hung off the back in two USB JBOD containers How many disks? Is there any hardware RAID built into the JBOD containers? Assuming 24MB/sec sync speed (simulataneous reading and writing over USB) it would seem to take about twelve days for a Pi to synchronise a bunch of disks using Linux sof...
by ejolson
Mon Sep 17, 2018 4:39 am
Forum: Networking and servers
Topic: Redirect all trafic on a hotspot
Replies: 4
Views: 146

Re: Redirect all trafic on a hotspot

Heya there! Raspberry Pi 2 B+ I have a hotspot configured on wlan0 and I want to redirect all traffic to a wordpress website that I have installed on the raspberry too (for example, if someone connects my website pops up) How can I do that? I've already tried with iptables but nothing.. I think it ...
by ejolson
Sun Sep 16, 2018 6:53 pm
Forum: General discussion
Topic: Move Pi home from SD card to a HDD
Replies: 67
Views: 2091

Re: Move Pi home from SD card to a HDD (Given up)

Next is how to direct raspbian to change the path of home directory from /home to /media/pi/mypartition/home This one I need help with I'm not certain an NTFS system can hold a unix user home directory? You are right NTFS does not work for home directories. The simplest solution is to leave home wh...
by ejolson
Sun Sep 16, 2018 6:19 pm
Forum: Raspbian
Topic: 64-bit EXT4: breaking the 16TB limit
Replies: 10
Views: 346

Re: 64-bit EXT4: breaking the 16TB limit

Has anyone successfully created a larger than 16Tbyte file system using ext4 linux on a pi? Are you mounting your 24TB array as an iSCSI device? According to this blog, it will take more than 3GB RAM to run fsck on such a large ext4 filesystem. That blog also lists the options necessary for creatin...
by ejolson
Sat Sep 15, 2018 4:51 pm
Forum: Beginners
Topic: Need an easy NAS setup for a 3 B+
Replies: 9
Views: 262

Re: Need an easy NAS setup for a 3 B+

I am first trying to get info on how I can set up a NAS, especially a good principle for how to boot. There are two common approaches to seeing up network attached storage: 1. Start with Raspbian and install Samba, NFS and perhaps iSCSI. Then configure these services using a text editor to do what ...
by ejolson
Sat Sep 15, 2018 4:23 pm
Forum: General discussion
Topic: Crontab disrupting login.
Replies: 6
Views: 164

Re: Crontab disrupting login.

Curiouser and curiouser. I managed to find all the command files, and sudo, fo I could run a find for crontab. Found and removed the problematic line, however the problem persists, so something else has gone wrong at the same time. I've managed through ssh to update and upgrade but the problem pers...
by ejolson
Fri Sep 14, 2018 7:14 pm
Forum: Raspbian
Topic: More Responsive WM and DE for RPi BCM2835 with 512MB RAM
Replies: 3
Views: 121

Re: More Responsive WM and DE for RPi BCM2835 with 512MB RAM

ShiftPlusOne wrote:
Wed Sep 12, 2018 6:44 pm
Roll your own with tint2 for the panel, openbox and pcmanfm. Should be very light.
How does openbox compare with fvwm in terms of efficient use of resources and perceived responsiveness?
by ejolson
Fri Sep 14, 2018 6:14 pm
Forum: Graphics, sound and multimedia
Topic: Dive Coms
Replies: 8
Views: 238

Re: Dive Coms

Hello, I am working to the diving company, and we have coms for surface supply diving. They are expensive and breaking down so often like raining in Scotland.... However, I got the idea to make coms with raspberry PI. Problem is I am not experienced with PI, but however, i know blibs and blobs abou...
by ejolson
Fri Sep 14, 2018 5:06 pm
Forum: General discussion
Topic: Crontab disrupting login.
Replies: 6
Views: 164

Re: Crontab disrupting login.

Ok, I've found nano! What would the name be for my crontab file? And to be able to edit it, where do I find the sudo file? In situations such as these I usually switch from repair and fixing mode to backup and salvage. Before proceeding, I would recommend copying your new work from the non-bootable...
by ejolson
Fri Sep 14, 2018 4:16 am
Forum: General discussion
Topic: Move Pi home from SD card to a HDD
Replies: 67
Views: 2091

Re: Move Pi home from SD card to a HDD (Given up)

I'm just giving up and going along with the above method of using the HDD like its a big SD card. Raspbian just takes over my HDD like a virus and no matter what I try I can't stop it. Time to admit defeat its just not worth the angst anymore. Sometimes, especially with computers, it's good to take...
by ejolson
Thu Sep 13, 2018 6:17 am
Forum: General discussion
Topic: High Endurance SD card
Replies: 42
Views: 7914

Re: High Endurance SD card

Am I to understands that PiCore loads a roof file system image into some kind of "RAM disk" and then boots itself from that? I think PiCore allows you to pull the SD card out after it boots so you can use the built-in SD card slot for other things. For example, it should be possible to format a new...
by ejolson
Thu Sep 13, 2018 1:39 am
Forum: General discussion
Topic: High Endurance SD card
Replies: 42
Views: 7914

Re: High Endurance SD card

But as said, everyone is free to decide whatever s/he find fits best for her/him. Where I live the price of a 120 GB SATA III SSD is about the same as a 128 GB SD card. Assuming the USB to SATA converter is not expensive, then cost is not a distinguishing factor between the two options. On the othe...
by ejolson
Wed Sep 12, 2018 9:21 pm
Forum: General discussion
Topic: No Red LED [solved]
Replies: 5
Views: 175

Re: No Red LED

My BCM2836 Pi 2B's red LED is illuminating here. I was going to point out that there are two--rather different--versions of the Pi2B. This is one of the original Pi 2B computers. Seems a different power supply did the trick. The red light came on and has remained lit for a couple hours now. I'll ma...
by ejolson
Wed Sep 12, 2018 6:50 pm
Forum: General discussion
Topic: 3B+ as a Wireless Access Point
Replies: 21
Views: 2578

Re: 3B+ as a Wireless Access Point

This can be an interesting experiment. I know 'cause I did it. But, in the end, IMHO, it is pointless. The result is always unreliable and you can purchase a range extender/access point for much less money than the cost a Pi plus wifi dongle. The result shouldn't be unreliable, but I'll admit it wa...
by ejolson
Wed Sep 12, 2018 4:55 pm
Forum: General discussion
Topic: No Red LED [solved]
Replies: 5
Views: 175

Re: No Red LED

A 2B has the undervoltage protection circuit, which turns the power LED off when the input voltage drops under 4.65V, but you should also get a lightening icon when that happens. In principle software can turn the LED off, if the GPIO that senses an undervoltage is switched to an output, and output...
by ejolson
Wed Sep 12, 2018 4:42 pm
Forum: Beginners
Topic: Illuminated push button
Replies: 41
Views: 750

Re: Illuminated push button

Jukebox Mike wrote:
Wed Sep 12, 2018 3:56 pm
Strange thing is, if I reverse polarity it still lights up!
Is the colour of the light the same when you reverse the polarity?
by ejolson
Wed Sep 12, 2018 4:29 pm
Forum: General discussion
Topic: No Red LED [solved]
Replies: 5
Views: 175

No Red LED [solved]

I have a Pi 2B and the red LED seems dark now. If remember correctly it used to light up. The system otherwise seems functional. So what does it being dark mean? Is this a low voltage indicator, a burned out light, software changes or something else? If you have a 2B running the latest Raspbian, is ...
by ejolson
Wed Sep 12, 2018 4:23 pm
Forum: General discussion
Topic: How to avoid usb flash drive getting hot when idle?
Replies: 5
Views: 229

Re: How to avoid usb flash drive getting hot when idle?

Tany3450 wrote:
Tue Sep 11, 2018 7:32 pm
I have 16gb usb flash drive connected to my pi as storage. However, it is getting hot even when idle.
Are you using a Pi 3B+ or different model?
by ejolson
Wed Sep 12, 2018 12:05 pm
Forum: General discussion
Topic: Move Pi home from SD card to a HDD
Replies: 67
Views: 2091

Re: Move Pi home from SD card to a HDD

I surmised that by resizing the rootfs partition I lost data hence the errors. Raspbian mounts the root filesystem using a partition UUID which likely changed when you resized the partition. If so, this would explain why the system didn't boot afterwards. One solution is to give the root partition ...
by ejolson
Wed Sep 12, 2018 3:47 am
Forum: General discussion
Topic: Looks like Firefox is now officially unsupported in Raspbian
Replies: 13
Views: 499

Re: Looks like Firefox is now officially unsupported in Raspbian

Make you wonder if ApplePie's will ever appear? I like apple pie. Unfortunately, the cinnamon doesn't agree with my digestion. So maybe I'll pass. Good to hear such positive reports about Firefox on the 64-bit Gentoo image. The code rewrite in rust seems to be paying off. Gentoo is definitely on my...

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