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Questions tagged [filesystem]

Questions dealing with Ubuntu's layout of files, permissions, and files that reside in special locations on disk.

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how can I find the cookies files to specific websites?

I am using firefox, but I dont really care what browser I use, I just want to find the cookies file to a specific website I am going to. I think the cookies file will tell me things like how I can ...
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Ubuntu 18.04 filesystem goes unresponsive shortly after resume

Ubuntu 18.04, Acer Extensa 2510G, Nouveau 1.0.15-2. Home directory encrypted. Resumes from suspend normally. After 10 seconds to 1 minute, ceases to open folders, copy/move files, than hangs. Can't ...
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1answer
15 views

overlayfs mounted - but writing fails as “read-only file system”

I try a simple overlay example by mounting: sudo mount -t overlay -o lowerdir=/tmp/lower,upperdir=/tmp/upper/upper, workdir=/tmp/upper/workdir none /tmp/overlay (I run the full script from ...
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27 views

How to fix file system corrupted usb (USB is not detecting)

My USB flash drive has been corrupted and I really need it to work, I have tried to list the devices with command lsblk But it's showing only my hard disk and when I try to mount it with terminal ...
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62 views

Transfer icons and themes

I just purchased a System76 laptop and I have decided to try the Pop! OS 18.04. I love Unity and 16.04, but have decided to try something new for this laptop. My media center is running Ubuntu 16.04 ...
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1answer
28 views

How to format a USB drive with non-removable media?

I have a USB drive with non-removable media inside of it.. I want to format the USB drive and get it working again. here is the output of the hdparm command: hdparm -I /dev/sdb /dev/sdb: SG_IO: ...
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0answers
12 views

ErrorCode 13 while moving the datadir of mysql to flash drive

I am trying to use my flash drive to run mysql, i.e. I want to use my flash drive to do all the operations of mysql in place of hard disk. I have followed the document of digital ocean to move the ...
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2answers
94 views

What is the difference between creating swap space and creating a filesystem?

I know that to create swap space on file or disk, we have to use command mkswap //filename, and to create filesystem, we have to use mkfs command, but what is the main difference between creating swap ...
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23 views

Crontab referencing non-existent file: /etc/cron.dayly

Today I noticed that /var/spool/cron/crontabs/root line #24 was referencing a non-existent directory on my system (Ubuntu MATE 18.04.1 LTS bionic): 25 6 * * * root test -x /usr/sbin/anacron || (...
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22 views

Fix unrecognised Flash drive - no file system on the usb

I installed Ubuntu on my PC from a flash drive and then deleted the iso image from the drive (which was obviously not the right way to do it). Now the drive appears to have no file system on it and ...
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0answers
36 views

My root partition changed it's filesystem type to dos!

I can not install grub because of wrong filesystem of root partition.Root partition is on dev/sda10 Please give an answer without rebooting. When I run sudo fdisk -l: Disk /dev/loop0: 140,9 MiB, ...
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Understanding the File System and memory allocation [duplicate]

Some confusion over a warning message saying my root directory is almost full. What exactly is my root directory, is it synonymous with my home directory, or is it literally the 'root' folder which ...
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1answer
40 views

How to make rootfs read-only?

I try to make my rootfs read-only. I thought that I better use overlay filesystem for this purpose (I don't have other alternatives now). Yet, after many trials and changing fstab, I can't manage to ...
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1answer
40 views

Is it safe to use apt-btrfs-snapshot for complete system restore on new machine?

I have a small server that I use as a NAS, it has a few services running on it and a number of files that it stores. It is configured as RAID1 with two SSDs, formatted with btrfs. I use apt-btrfs-...
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103 views

Mounting iPhone on Ubuntu 18.04

I have been trying to access the root filesystem of my jailbroken iPhone 4 on Ubuntu 18.04. I followed the steps of this: How can I mount my iPhone 6s on Ubuntu 16.04?. Everything went smoothly but I ...
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2answers
97 views

How to fix EXT4-fs error even after a full wipe?

I have an HP Probook 440 G3. I was previously dual-booting Linux Mint Cinnamon 18.3 with no issues for about a year. Then I started getting the "No boot device found" and other errors. After trying ...
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1answer
23 views

Is there something wrong with my partitions?

I was running a upgrade of the various packages and I got a message saying I did not have enough space (weird). That happened after a boot that went wrong and I had to turn off my pc holding down the ...
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57 views

File system errors on virtual machine: Resize inode not valid. fsck exited with status code 4

TL;DR I'm trying to fix a disk that got corrupted because I hard-shutdown the VM. The farthest I've managed to go is to use fsck.ext4 and a back up superblock to allow me to mount the disk again. ...
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2answers
52 views

How Can Access to My Windows 10 Desktop Directory From Ubuntu Terminal

I install Ubuntu alongside Windows 10 . Now , I want to access some folder which is in my Windows 10 Desktop directory. I try some command like this on Ubuntu terminal but I can't find Desktop ...
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1answer
65 views

What's Linux analog for “everyone” security principal on Windows

Is there any Linux analog for "everyone" security principal on windows, or the mechanism for really the same effect ?
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1answer
62 views

How do I prevent a user from copying files from a remote Ubuntu server?

Is there any setting scripts or ideas in remote server to achieve that goal? The user is the computer user, such as administrator or guest, rather than Web application user or others.
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2answers
318 views

All of a sudden I'm getting permission errors

I'm running Ubuntu 16.04.4 LTS and facing a problem. All of a sudden I'm unable to edit files that I could before, I cannot run programs due to permission errors. I'm always logged in as a user ejaz ...
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77 views

How can I access anbox filesystem?

I know anbox is still unstable, i installed the latest version of anbox in ubuntu 16.04 and it works fine but it seems i cant save or download files in the anbox filesystem. I noticed anbox ...
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38 views

Syncing one folder between two Ubuntu 16.04

I need to sync folder media in our Django project between two computers. I can't track it using git because the media folder can't be deployed to the production server. Do you have any ideas? MY PC ...
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0answers
22 views

Handling 20K files of 500M each

I have 20K files. The size varies from 150M to 500M each. My files are tend to grow with time up to 500M. My usage scenario ETL (all happens within 8 minutes): Read file Modify it in memory Write ...
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1answer
36 views

How do I set up a partition to use for local files [18.04]

I recently received notification that my "Filesystem Root" was running out of remaining space. I followed along this thread. After cleaning up a few folders, this is the output of df -h Filesystem ...
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2answers
34 views

Script that formats a drive in a very specific way

I want to format a drive using a script in Ubuntu. The required specs are: Partition table: Master Boot Record Partition Type: Linux File System: Ext2 My current problems: sudo parted mklablel ...
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20 views

Error accessing a file no such file or directory (I want to rename it)

I am struggling to rename a file, I had a similar issue sometime ago but in that case I wanted to delete, this time I simply want to access it. I have cleared the directory, so only this single file ...
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0answers
60 views

How to scan internal memory of my Android phone around a certain index entry in order to find lost utf-8/LF (for Linux/Adroid) text?

Last night, I was using the Jota Text Editor app on my LG G3 Anroid phone running Fulmics. The phone (which I am planning to replace very soon) crashed about two times whilst I was writing a text with ...
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0answers
14 views

How to configure io_poll_delay from /sys/block/sda/queue

I cannot seem to find a way to set the io_poll_delay attribute under /sys/block/sda/queue I am running Ubuntu 16.04.4 Desktop with kernel 4.13.0-45 Here is everything I have tried thus far without ...
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0answers
46 views

Failure in moving files in Linux

I was moving a bunch of large files from my home directory to an external HDD. Suddenly the GUI crashed and I had no choice but to hard reset the computer. After booting up I found out that almost ...
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2answers
73 views

If I use EXT4 driver for EXT3 filesystem, will I get better performance? Why? [closed]

In my testing, I can see using EXT4 driver for EXT3 filesystem improve performance but I am not sure why.
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How to restart system and desktop after pivot_root

I'm using ubuntu 16.04 for my OS system. I had changed to new root with pivot_root. And tried to restart all the system and the desktop. I would not try to use reboot cause it will reboot the old ...
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22 views

Repair harddrive, partition table and filesystem after bitlocker failure

I'm new to this forum. So be nice to me. :P Problem: I want to regain a filesystem/ partition table/ my data. Please help me. The data is very important to me! What happened? I tried to encrypt a ...
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2answers
516 views

Deleting many files results in “argument list too long” [duplicate]

I have 280 thousand photos to delete in a folder, but some videos to keep. In the folder, I gave the command: #rm *.jpg, but I get "argument list too long". When I create an argument to delete some of ...
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28 views

How to do overlayroot on Ubuntu 16.04 LXDE

I'm using Ubuntu 16.04 LXDE as my os system. I had try to install overlayroot package on it. Then modify the overlayroot.conf to enable overlayroot. And I tried overlayroot on both ARM and X86 with ...
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3answers
368 views

How to install Wine application on particular disk [duplicate]

I’m new to Ubuntu so I don’t know much on how the file system works. I have Ubuntu 18.04 on my 256GB SSD and I have mounted a 1TB drive in my media directory. My question is how can I install a large ...
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34 views

When will root filesystem be mounted in Ubuntu 16.04 LXDE?

I'm trying to understand when did Ubuntu will automatically mount root filesystem on / . What I know is that I will cut and give flag where the filesystem will be located in U-boot. Then it will ...
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1answer
150 views

Cannot edit system file /snap/phpstorm… even with root account in Ubuntu 18.04 [duplicate]

I installed a snap package in Ubuntu 18.04 package and I want to edit one of its files using root account. First I switched to root with su, but then when I opened file in nano it tells me: [ File '/...
3
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1answer
120 views

Filesystem problem with Lenovo 310

I have installed Ubuntu 18.04 in a Lenovo 310 and I have some problems after some time (the problem usually happens after watching flash videos on the browser) the filesystem gets read-only. For ...
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0answers
256 views

Root file system sometimes mounted read-only after resume from suspend on Dell laptop with 18.04 Bionic

My freshly installed Ubuntu Bionic 18.04 on a Dell Inspiron 15 laptop has a weird problem. After resuming from suspend mode, sometimes the root file system is mounted read-only. This happens more ...
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0answers
14 views

slow data transfer rate into a partition of fuseblk type [duplicate]

Rate of data transfer from any location to a specific partition is very slow, whereas rate of transfer from that partition to other locations is normal, partition file system is /dev/sda4 and type is ...
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0answers
61 views

Not using locking for /var/lib/dpkg/lock (sudo mount -o remount,rw / does nothing)

OK, I know this may seem like a duplicate, but I've run into a problem that has caused me weeks of headache. I don't know what happened but my filesystem was remounted in read only mode (no I was not ...
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0answers
80 views

Btrbck Error: Not a BTRFS Filesystem?

I have installed my Kubuntu 18.04 system using a manual partitioning scheme and chose BTRFS in the install screen. This is confirmed using the disks utility. However, when I try to follow this ...
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0answers
34 views

Cannot read from a bootable USB drive

I am trying to install Ubuntu 18.04 on an hp EliteBook 8470p which got no operating system installed. I have made the USB drive bootable using Rufus. Now, when I try to install (I marked USB drive as ...
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1answer
43 views

Matlab freezes periodically

I have install MATLAB R2015a on Ubuntu 16.04 system. It is running ok with one mysterious problem. I am analyzing roughly 8000 DICOM files at different iterations. Every time I tried to type command ...
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1answer
71 views

How can i resize/restrict a folder for users like Desktop/Downloads in Ubuntu

I want to enable size restrictions, which means I want to resize few folders for users like Desktop, Downloads or Music folders. If a user exceeded the memory then it shouldn't overwrite and gets the ...
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0answers
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Is there a way to limit write access to a filesystem based on the executable?

I would like to reasonably ensure that only a specific executable has write access to a filesystem (anything else is just read access). I do not need this to be secure (in the sense this is not a ...
0
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1answer
38 views

Different versions of `sync` tool

There are two man pages about the sync tool: (1) http://man7.org/linux/man-pages/man1/sync.1.html NAME sync - Synchronize cached writes to persistent storage SYNOPSIS top ...
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1answer
200 views

tune2fs complaining about “unsupported read-only feature(s)” on fresh ext4 filesystem

I did a fresh install of Ubuntu 16.04. /dev/md1 contains an ext4 filesystem that is mounted at /: /dev/md1 on / type ext4 (rw,relatime,data=ordered) Now I want to set the automatic filesystem check ...