Questions tagged [ext4]
ext4 (fourth extended filesystem) is a journalling file system for Linux, developed as the successor to ext3. Use this tag for question that are ext4 specific, generic file system related questions should use tag [filesystem]
934
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fstab mount doesn't find device
I have a problem with mounting a simple ext4 USB device with sync option and defaults.
This is my fstab entry:
UUID=233b8055-d596-48a7-a666-1e10b8860d9c /USBSSD sync 0 0
when I use mount -a, it says:
...
- 299
1
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1
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67
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"structure needs cleaning", hardware failure?
The drive that my /home folder lives on is showing signs of failing,
and I'm trying to migrate to a new drive.
I purchased a 4TB SSD, formatted it with ext4, mounted it as an external drive with a ...
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1
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Debian Bookworm, systemd, and how EXT4 quota works?
I have a fresh Debian 12 system and I'm trying to turn on and enforce EXT4 filesystem quota. I read a lot of man and some other sources, for example this one from Red Hat: https://access.redhat.com/...
- 1,441
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"Bad Jump in FAT partition" and "Bad number of sectors per cluster" right before ext4 offset
TL;DR partition table (?) potentially messed up by windows disk management on drive containing both NTFS data partition and EXT4 filesystem. Fairly certain zero or almost zero data was lost. testdisk ...
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51
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Recovering an ext4 partition
I have an external drive with an ext4 partition /dev/sda1 I use for my local borg backups.
It is simply plugged in via usb port, and, mounted with an fstab generated systemd automount entry. I ran a ...
- 53
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How to reclaim SSD space during formating
I've got a "1000GB SSD"
after creating partition (aligned to 2048) I'm down to
sdd 8:48 0 931.5G 0 disk
└─sdd1 8:49 0 931.5G 0 part
which is fine, because 1GB means 1000bytes ...
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1
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77
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Mounting a VHDX ext4 partition in linux
I'm wondering how terrible an idea the following is or is not...
I want to share an ext4 fs between WSL2 and linux using a fixed-size .vhdx image created in windows (residing on NTFS partition). ...
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1
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53
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How to resize partition in-between other partitions (CLI)?
How can I resize some partitions on a disk where there are other partitions before and after it?
I've found plenty of guides on the Internet about how to resize a partition (eg with parted), but they ...
- 172
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1
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Formatting the same drive with gparted: original NTFS=232.28MB used | Ext4= 1.92 GB used Why?
I'm formatting an external hard drive with gparted.
The original NTFS read 232.28 MB used.
Now, with Ext4, it reads 1.92 GB used.
Questions:
Why?
Is there a better file system I should use for ...
- 45
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35
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Unable to mount Raid 5+0 EXT4 partition
My server has a raid 5+0 configuration which is a raid 0 device made up of 2 x raid 5 devices.
md1 is made up of md10 and md11.
md1 : active raid0 md10[0] md11[1]
15627286528 blocks super 1.2 ...
- 101
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1
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30
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Upgrading from ext3/4 to BTFS vs fresh install?
According to Debian
Ext2/3/4 filesystems are upgradeable to Btrfs; however, upstream recommends backing up the data, creating a pristine btrfs filesystem with wipefs -a and mkfs.btrfs, and restoring ...
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3
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Minimalistic ext4 filesystem without journal and other advanced features
I have a small "rescue" system (16 MB) that I boot into RAM as ramdisk. The initrd disk that I am preparing needs to be formatted. I think ext4 will do fine, but obviously, it doesn't make ...
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1
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32
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Almost empty disk after some actions on arch
I have an arch linux with ext4 partition
I had a working system and decided to make some backups
Here's what I've did:
Installed timeshift
After opening it I've decided to install btrfs-progs (I was ...
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0
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47
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Why is my drive showing almost 1TB usage when I just now created the partition? [duplicate]
I just now got done wiping an 18TB drive, formatting it, making a new partition, and creating the filesystem on it. Below is the output of df -h on another machine that's connected via Samba.
//192....
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1
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130
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How to enable data=journal ext4 fs mode?
Preface (my 1st attempt ended badly): Fstab adding data=journal crashed my Linux' ext4 upon boot, how to fix?
I can't find some reliable step-by-step instructions on How to enable data=journal ...
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Fstab adding data=journal crashed my Linux' ext4 upon boot, how to fix?
I changed my /etc/fstab from:
UUID=f1fc7345-be7a-4c6b-9559-fc6e2d445bfa / ext4 errors=remount-ro 0 1
UUID=4966-E925 /boot/efi vfat umask=0077 ...
- 27.8k
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0
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35
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Mount a Luks Container on different devices at the same time
My scenario:
I have a 50GB luks container (ext4) stored on a NAS. I can mount and work with this device on a Debian Machine, no problems.
Now I need to work on the same container on two other devices, ...
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1
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106
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Is there a case where Applications need to do it's own File corruption checks with file systems like EXT4 and XFS and recent Linux OS like Red-Hat 8
What I presumed is
File systems like EXT4 and XFS. Writes blocks to disk (Could be a Hard Disk or a SSD) along with a checksum.
When Reading back, if checksum fails, read operation will NOT return ...
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Corrupted EXT4 filesystem on embedded Linux (A20 Olimex Lime 2) with clean poweroff
Context
I'm here to talk to you about an EXT4 filesystem issue that I don't understand.
In my company, we are working on embedded Linux system.
We use the board Olimex Lime 2.
T2-OLinuXino-LIME2-...
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0
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253
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How to measure the role of btrfs in SSD wear on my PC?
I've used btrfs for my encrypted partitions (luks) on Samsung EVO SSDs. The disks failed faster than expected. How can I assess whether e.g. ext4 would be more reliable on these disks for my usage, or ...
- 522
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225
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Find command very slow in directory with tons of files and subdirectories
For about a week I've been waiting for the following command to complete
find -type d -empty -print -delete >> empty-folder-deletion-log.txt
but it is still going and it seems like it has a lot ...
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1
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1
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76
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external HDD drive become Read-only file system with wrong file system type
I have a Toshiba HDD with an ext4 file system that I have been using extensively until yesterday. Suddenly, it has become a read-only file system, and when I run fdisk -l, it shows the type as HPFS/...
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3
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How to change the casefold ext4 filesystem option of the root partition, if I only have ssh access
I need to enable the case insensitive filesystem feature (casefold) on ext4 of a Debian 11 server with a backported 6.1 linux kernel with the required options compiled in.
The server has a swap ...
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2
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1
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143
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Is ext4 fast_commit really stable? (Linux 6.3)
It seems I've been too quick to enable fast_commit on most my ext4 file systems and since then I often experienced FS corruptions. I've never ever had this kind of issues with ext4 that has been rock ...
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1
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1
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155
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Mount a LUKS encrypted EXT4 formated image file when mount folder is accessed (using autofs)
Here's what I'd like to do. Use autofs to automount an encrypted luks image file when the target directory is accessed.
I've been playing with both fstab and crypttab, but to no luck.
I do NOT want to ...
- 121
1
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1
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RAID6 unable to mount EXT4-fs: bad geometry: block count exceeds size of device
On my server, I had an SSD as the boot drive with 11 6TB HDDs in a RAID6 setup as additional storage. However, after running into some issues with the motherboard, I switched the motherboard to one ...
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1
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Shrink part of disk to a new virtual disk
I have a Linux system (Debian 11) on a disk. Partition is 100GB, system only needs 10GB of data.
If I get all the disk (dd) and use it for as a disk of a virutual system (qemu, kvm) all is fine.
How ...
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2
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1
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192
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Restore Rsync Backup Of System On Any Linux Distribution
I used the following alias to back up my root directory on Ubuntu 22.04 LTS to an external flash drive
alias backup='sudo rsync -aAXHS --info=progress2 --delete --exclude={"/dev/*","/...
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3
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2
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How to refresh decoy data on a plausible deniability dm-crypt scheme?
I just read this discussion between Linus Torvalds and (among others) Milan Broz, one of dm-crypt's maintainers.
I am intrigued by the the following part of the discussion :
Linus Torvalds:
I thought ...
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1
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323
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grub does not recognise specially-formatted ext4 partition
As the title states, grub is unable to recognise my ext4 partition:
GNU GRUB version 2.06-3~deb11u5
Minimal BASH-like line editing is supported. For the first word, TAB
...
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1
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541
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Error: ext4magic Error 13 while opening filesystem
I'm trying to recover an accidentally removed directory (/home/garid/.gnupg) with ext4magic. However, It outputs following error:
$ ext4magic /dev/nvme0n1p3 -f /home/garid/.gnupg/ -a $(date -d -...
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1
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Installing ArchLinux in VmWare Fusion on M1 Mac
I'm following along in this article to install arch in vmware on my m1 mac
I'm able to do fdisk just fine, and get the following partition table:
I then create the filesystem for partition 2 per the ...
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0
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How to optimize NTFS performance on Linux?
I am running Ubuntu 22.04.2 on a laptop with the following specifications:
SSD: HP S700 SSD
CPU: Intel Core i7 7700HQ
RAM: 16GB
Kernel: 5.19.0-32-generic
All system packages are updated to the latest ...
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1
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Is changing root reserve blocks effects the Hard disk or its a OS dependent operation?
My question is in reference to this excellent answer here.
I need some more info,
If I change the Root Reserve Blocks (RRB) to any amount other than default in some version of Linux, will that be ...
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4
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1
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Checksumming on Ext4 (crc32c-intel) while formatting (5TB external HDD)
I bought a new 2.5-inch external hard drive of 5TB in size from Seagate.
On my Linux Mint 21.1 now, I need to format the newly created partition with gdisk:
Model: Expansion HDD
Sector size (...
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0
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254
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Bad Superblock while mounting an ext4 Disk
I wanted to migrate my Data to a larger Disk for my secondary Drive for my Synology NAS.
I tried to Mount the Disk on a Rapsberry to do a Filetransfer to the new Disk on the Synology.
But on the way ...
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1
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1
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684
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Fixing an ext4 whole-device filesystem and corrupt GPT partition table
I have an issue very similar to the question here:
https://askubuntu.com/questions/1370421/restore-ext4-hd-after-creating-gpt-partition-table
My problem seems to be that I had an ext4 filesystem which ...
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4
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536
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How to convert ext4 to bcachefs, on Linux Mint 21 and LMDE5?
The first bcachefs supporting Kernel 6.1, are released on 2022-12-11. See follow sources:
https://evilpiepirate.org/git/bcachefs.git
https://web.archive.org/web/20230207003903/https://evilpiepirate....
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udisks excluding system global mount options when mounting
I have updated my embedded linux, but the udisksctl does not work as expected anymore. If I try to mount a ext4 formatted flash drive I get the following error:
root@system:~# udisksctl mount -b /dev/...
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How do I recover data from xfs and ext4 filesystem
Hi guys I just wanna know if there’s a simple command to recover a simple data file such as vi text in ext4 and xfs filesystem in linux
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0
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654
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Recover ext4 partition superblock `Free blocks count wrong for group #0`
I have a broken ext4 partition which I want to recover. The problem occurred because of a sudden power loss. The partition is an encrypted luks partition. Opening the luks container works. Say I open ...
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1
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316
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FSCK Failing to fix e2fs on LVM disk image or original SSD
I have a Sandisk 1TB SDD that is in SMART Pre-fail as my boot disk on a machine running Ubuntu 22.04. Recently this disk failed to boot the machine, and is no longer mountable when removed and mounted ...
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4
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When is ext5 coming or when will ext4 be updated to support large (huge) SSDs?
There is already the Nimbus ExaDrive 100TB SSD and the 200TB SSD will come soon. As you can read here ext4 supports up to 256 TB. It's only a matter of time hardware will reach this limit.
Will they ...
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Discrepancy between size of log file and space reported by df on CentOS 6.6
I have a log file on a CentOS system that is taking up 700MB of space (seen using ls), but when I run the df -h command, it shows that only 200MB of space is being used on the file system (ext4).
What ...
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1
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568
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Bad magic number while trying to mount a new hard disk
Im using RHEL 8.7
I've added new HD nvme0n2 to my linux and created partititions successfully
the output of lsblk -f
NAME FSTYPE LABEL UUID ...
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0
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43
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Is there a Linux tool that can automatically syncronise (monitor) two folders on local drives with different filesystems?
I have Linux computer with external NTFS drive. I need one of the directories of the internal drive (ext4) being automatically syncronised with an external drive directory.
The complication stems from ...
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3
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1
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378
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Disk full after deleting large files and rebooting
I accidentally filled up my hard drive and I cannot recover from it.
I've deleted several Gigabyte of files, but the df command still shows that the disk is full, and even a simple echo hello > ...
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7
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3
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2k
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How dangerous is to disable the EXT4 journaling?
I'm verry new to Linux. I have a Raspberry Pi 4 device with Raspberry Pi OS Lite. I use this with 4 HDDs conected to USB as a NAS. The hard drives were formatted in NTFS because I used them in Windows ...
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1
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562
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Why is the ext4 file system so sensitive to crashes? [closed]
I've been using Linux on ext4 file systems for many years - before that I used Windows on NTFS for many years. The ext4 file system strikes me as much more sensitive to crashes than NTFS. If I had a ...
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0
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32
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Why is empty disk reporting significant usage? [duplicate]
Let me start off by saying that I’m well aware of the difference between B and iB and this is not a discrepancy involving terminology as it does not relate to total disk space but space used on the ...
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