9
votes
Accepted
What is Wolfram engine and can I delete it?
Wolfram is the programming language of mathematica. Don't just delete the files. This may confuse and break your installation system. If you don't need wolfram just deinstall it with:
rpi ~$ sudo apt ...
- 42.6k
8
votes
Transmission: permission denied on USB disk
None of the answers here worked for me, so I am writing a new one referencing https://pimylifeup.com/raspberry-pi-torrentbox/ which worked great for me and allowed me to run transmission as pi user to ...
- 191
6
votes
Accepted
How to install FreeNAS
I think it's unlikely that a Pi would work well, if at all, with FreeNAS.
Note the recommendation on their download page:
The new recommended boot device size is 8GB. FreeNAS 11 requires 8GB of ...
- 6,337
6
votes
Is there a way to compress a backup of the RPi because the backup has empty space?
Already answered here dd-on-entire-disk-but-do-not-want-empty-portion
Assuming you want to save /dev/sdXN to /tgtfs/image.raw and you are root:
mkdir /srcfs && mount /dev/sdXN /srcfs
Use ...
- 2,836
5
votes
Is there a way to compress a backup of the RPi because the backup has empty space?
https://www.raspberrypi.org/documentation/linux/filesystem/backup.md explains backup and restoration.
You don't indicate what OS you are using but it is simple on any 'NIX system.
I use the following ...
- 61.5k
5
votes
Issue with multi-user NAS setup
This seems to be a classical unix rights problem. Let's have a look on it. To avoid confusion I set user of /media/NAS to root and then check where is the problem:
pi@raspberry ~$ sudo chown root /...
- 42.6k
4
votes
Accepted
How to use external flash drive as raspberry pi 3 root storage?
You can put your filesystem on an external drive, there are instructions to use an external drive to boot your Pi. See https://www.raspberrypi.org/documentation/hardware/raspberrypi/bootmodes/msd.md
...
- 61.5k
4
votes
raspberry pi 4 suddenly won't recognize nvme on USB3 port
I have had a very similar problem (I/O errors) with SATA USB adapters that were also manufactured by JMicron. It seems to be a known problem especially for SATA (see here) that some manufacturers are ...
- 41
3
votes
Accepted
Bluetooth Audio to Raspberry Pi Zero W as USB Mass Storage
You can build such a thing with a Pi. However, the problem would be how the head unit accesses the MP3 files, and the fact that you are changing it out from under it. Most programs (like the one the ...
- 1,120
3
votes
Accepted
Root directory using all space?
The first line of df isn't saying the root directory is using all that space, that's the root mount point, containing every directory which isn't covered by one of the other mount points.
I suspect ...
- 351
3
votes
Accepted
How to let Raspberry 4 B stop spinning the external hard disk when there is no write or read request?
The behavior you describe can apparently be achieved through installation and configuration of the hdparm utility (ref).
You might check the Arch Linux repo for this package, or you might try ...
- 22.9k
3
votes
Can I use a USB drive instead of a micro sd card?
Since you have a Raspberry Pi 4 it is possible to get it to boot from USB.
The process to switch from SD card boot to USB boot is demanding that you FIRST boot from a SD card.
So YES you need a SD ...
- 2,836
3
votes
How safe is it to connect a Seagate 2TB Expansion Drive to Raspberry Pi 4B?
To answer your questions sequentially:
If you are using a portable external hard drive from a reputed manufacturer, the enclosure should have vibration pads inside to protect the drive from shocks ...
3
votes
How safe is it to connect a Seagate 2TB Expansion Drive to Raspberry Pi 4B?
To add to Shivang's answer:
I've used a "spinning disk" USB drive powered from one of the USB3 ports on my RPi 4B for over a year now, and on a 3B for years before that. It runs 24x7, and I'...
- 22.9k
3
votes
raspberry pi 4 suddenly won't recognize nvme on USB3 port
When you have problems with devices using UAS driver, the first thing you should try is to disable UAS.
- 28.2k
3
votes
Accepted
How can I figure out why two closely related Raspberry Pi OS image files vary substantially in size despite having nearly identical folder sizes?
I would be surprised if modifying a couple of text files confused the compression algorithm to the point it produced an extra 300MB of output. So I would start by comparing the sizes of uncompressed ...
- 28.2k
3
votes
What are the expected write speed for external storage connected to USB 3 (blue) on Raspberry Pi 4 B
I'm also using JMicron JMS567 SATA 6Gb/s in Bulk Only Transport protocol and I'm getting similar write speed:
Write speed test:
sync; dd if=/dev/zero of=./test.tmp bs=1M count=1024
> 1073741824 ...
- 143
3
votes
Accepted
How is Raspberry Pi OS bootable on all boards?
There are several approaches to this problem (which are not Pi specific actually).
One is "fat binaries" where a binary includes code segments for multiple cpus, and the start up execution ...
- 1,001
3
votes
Accepted
SD card full, how to clear space?
With the following commands you get a list of disk usage summaries for files and directories in the root directory /, sorted by size.
cd /
sudo du -skx *|sort -n
If necessary repeat the command in ...
- 253
2
votes
Wake raspberry pi NAS on LAN
I need some mechanism that allows me to send the raspberry pi as well as the hdd's to sleep
You cannot. Pi's do not have any form of power management or sleep capabilities. You might, if you want ...
- 60.1k
2
votes
Accepted
Best external storage
Ok, you have a few things going on here:
File System
There are performance differences between ext4 and NTFS, but you will be more limited by the performance of the Pi than by the file system. In ...
- 3,372
2
votes
Reliability of Raspberry Pi as a storage solution
Generally speaking, most issues with the RPi (all models) can be traced back to power issues of some kind. Many of us have had RPis run for literally years without ever once corrupting an SD card.
...
- 11.9k
2
votes
Transmission: permission denied on USB disk
I found that the file system was the problem for me. Luckily it was a brand new usb hard drive so wasn't an issue to format it.
I first formatted the hard drive to ext4
sudo mkfs.ext4 /dev/<usb ...
- 203
2
votes
How to boot without mounting a Drive present during booting
/etc/fstab has a noauto option which will prevent the configured device or partition from being mounted automatically upon boot.
$man fstab
The fourth field (fs_mntops).
This field ...
- 1,419
2
votes
Accepted
Issue with multi-user NAS setup
/media/pi is an inappropriate mount point, and is normally used to automount media inserted by a user, which sets permissions.
A server would normally mount a shared directory in /mnt or /www and set ...
- 61.5k
2
votes
Is it possible to use a mSATA SSD AND SATA HDD on the same Raspberry Pi 3 Model B+? (and/or a M.2 SATA)
Technically I don't see why it wouldn't work as long as it was powered independently of the PI but it would be a huge expensive waste of money because it would be so slow. All USB ports and the ...
- 914
2
votes
Accepted
Sharing network drive with raspberry pi
Raspberry Pi's don't have USB 3.0 so it's going to default to USB 2.0 which is slower, but if you're sharing it over a wireless that's slow anyway, so yes it should work fine. You'll just have USB ...
- 869
2
votes
How to mount a VeraCrypt container on a RPi with optimal performance?
I've run a big number of tests today on a RaspberryPi4 2GB (with official PSU, and checked that no throttling happened; standard RaspiOS).
I used an external USB3 HDD, tested to be able to both read ...
- 792
1
vote
How to boot without mounting a Drive present during booting
You should remove the offending line from /etc/fstab and mount your USB stick using udev rules. If you run a GUI, the auto-mount should already be handled by your file manager. If it isn't, or you're ...
- 28.2k
Only top scored, non community-wiki answers of a minimum length are eligible