Categories
User Help

How can I clone a drive using GParted?

I installed Ventoy onto a 16 GB USB stick (really like 14.something GB but it’s called 16 GB). It put Ventoy on the second partition of 32 MB at the end (FAT16), and kept the whole rest of it as a blank EXT4 partition. This is what it’s supposed to do. Then I put some […]

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Linux Mastering Development

No bluetooth and

I know it’s a duplicate of a duplicate of a duplicate… but I tried solutions that I found (about sudo groupadd rfkill and others) and it didn’t work So I will begin with that $ bluetoothctl Agent registered [bluetooth]# power on No default controller available $ sudo systemctl stop bluetooth; sudo /usr/lib/bluetooth/bluetoothd -n -d bluetoothd[315732]: […]

Categories
Linux Mastering Development

No bluetooth and

I know it’s a duplicate of a duplicate of a duplicate… but I tried solutions that I found (about sudo groupadd rfkill and others) and it didn’t work So I will begin with that $ bluetoothctl Agent registered [bluetooth]# power on No default controller available $ sudo systemctl stop bluetooth; sudo /usr/lib/bluetooth/bluetoothd -n -d bluetoothd[315732]: […]

Categories
Linux Mastering Development

Main differences between XFS, EXT4 and EFS

I’m starting with back end development, coming from the front end world. Those terms: XFS, EXT4, EFS are alien to me. Not so much the names, but the explanations and differences seem rather complicated, and I wonder if it’s possible to lower it down to simple terms. I run ubuntu, and it was installed using […]

Categories
Linux Mastering Development

Main differences between XFS, EXT4 and EFS

I’m starting with back end development, coming from the front end world. Those terms: XFS, EXT4, EFS are alien to me. Not so much the names, but the explanations and differences seem rather complicated, and I wonder if it’s possible to lower it down to simple terms. I run ubuntu, and it was installed using […]

Categories
Linux Mastering Development

No bluetooth and

I know it’s a duplicate of a duplicate of a duplicate… but I tried solutions that I found (about sudo groupadd rfkill and others) and it didn’t work So I will begin with that $ bluetoothctl Agent registered [bluetooth]# power on No default controller available $ sudo systemctl stop bluetooth; sudo /usr/lib/bluetooth/bluetoothd -n -d bluetoothd[315732]: […]

Categories
Raspberry Pi User Help

Emergency mode after automatically mount usb driver

I try to mount a USB drive automatically on my PI 3B+, i following the instruction on site « How to format and mount a USB drive on Raspberry Pi? » by Patrick I past in the /etc/fstab the partuuid of my usb drive, ext4, /mount path …. Save and exit a fsatb file After reboot and […]

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Linux Mastering Development

LM 20 Win 10 dual boot going read-only and corrupting filesystem

I’ve been having trouble with my dual boot (win 10/LM20) install that are just driving me crazy. Here’s a summary of the diagnosis I’ve made so far Install windows 10 making a partition for Linux from win installer. Windows boots just fine. I’ve run the HD integrity tests inside windows and it says the HD […]

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Linux Mastering Development

Comparison of File system for 500 million of 50KB files for best write performance

linux kernel 5 (ubuntu 18.04) Use case is writing 100K files (50KB) in bursts, file system half 500million of files (per folder can be a small number if needed) and deleting old files all of the time. Writing on SDDs Requirement is performance (especially of the write) and stability I’ve read about xfs, ext4, reiserfs, […]

Categories
Linux Mastering Development Ubuntu

Remounting Raid1 drives after SSD got wiped: How do to do this without wiping the Raid1 Drives?

I know there are lots of questions asking about how to mount Raid1 drives but I wanted to ask a question here to double check some stuff. A lot of the "mount Raid1 drives" I found were how to convert Raid1 Drives into new drives or how to do so, but only once you’ve wiped […]