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Questions tagged [ext4]

The ext4 or fourth extended filesystem is a journaling file system for Linux, developed as the successor to ext3.

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What could cause a freshly formatted ext4 partitions to have wildly different used space?

I have four ext4 partitions on a newly formatted gpt disk. Eventhough I have no files in these partitions a lot of space is used up already. Highlighted in blue is a partition that has less used ...
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1answer
37 views

Why an empty directory has large volume?

All the directories below are empty [user@xxxx ~]$ ls -lah /home/1m total 387M drwxr-xr-x 22 foo foo 4.0K Apr 17 22:49 . drwxr-xr-x 10 foo foo 4.0K Apr 17 22:49 .. drwxr-xr-x 2 foo foo 9.2M Apr 17 ...
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Recover secondary drive

I haven't been able to mount my secondary hard drive, and I am unsure as to the error. This happens when I try mounting through Nautilus: I tried sudo fsck.ext4 -y /dev/sdb1 and sudo fsck /dev/sdb ...
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0answers
24 views

Filesystem immediately stops working after hotswap disk inserted in secondary controller

I have a computer with one 250GiB SSD disk connected to first onboard SATA connector which holds one EFI partition and one root partition (ubuntu 19.04). The computer also has a second discrete SAS ...
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2answers
96 views

Is there a way to execute software from EXT4 partitions on Windows 10?

Right, my scenario is that I have a Linux system set up and I was thinking about maybe setting up a Windows 10 dual boot, for reasons. The problem is that I like gaming, and I have a hard drive ...
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0answers
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Ext4 - Last Write Time

I'm currently looking at an issue with data loss and was using the tune2fs utility, I was wondering what 'Last write time:' was referring too? The volume is written to constantly and backups confirm ...
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Recovering data from failed disk expansion

My computer lost power in the process of expanding a partition with gparted. I believe the data is recoverable. Started with an NTFS partition on my 2TB HDD. De-fragmented and shrunk the partition ...
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Reading and writing all blocks of an ext4 filesystem

For an academic project I need the ability to read and write all blocks of an ext4 filesystem. Can I add an ioctl in the ext4 to achieve this? It just needs to iterate through all the blocks of the ...
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1answer
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recovering any possible files after partially overwriting partition and partition table

My question is along the lines of "format c:" after making jokes about it for decades... I had a secondary hard-drive 1TB ext4, formatted as a single partition - it was "slower but larger data" ...
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1answer
28 views

How does mkfs -c works

I have faulty 3 Tb drive. There's a lot of bad blocks, but it's still has about 2.6 Tb usable space and I'd like to utilize it for trash storage (music, videos, etc.) At first I came across some guy's ...
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0answers
47 views

Change raid partition to ext4

I have an external HHD that has somehow been formatted as 'linux-raid' when I look at it in gParted. I have no idea how I have accidentally done this but I guess I misused some new feature of an open ...
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1answer
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About emmc file block mapping

I successfully locate a file on ext4 filesystem. For example, the beginning 4k block of the file "cyclic.txt" is 105441. But when it read it from emmc card directly ,the first emmc block is not there ...
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1answer
26 views

Hard Disk Appear, Disappear and Reappear?

I just bought a brand new 8TB hard drive yesterday. I connected it directly to my motherboard, and ran gdisk to re-partitioned and created ext4 (mkfs.ext4). I saw it in my file manager, and I ...
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0answers
42 views

Me being stupid - how do I recover my files?

Quick story behind my problem: I was working on a machine with multiple disk drives, but no RAID. Because of faulty SATA cable one of the disks started to act weird, system disk to be specific, so the ...
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1answer
38 views

Problems after lvm resize

fsck -l gives: hacker3000@highpower:~$ sudo fdisk -l Disk /dev/loop0: 86,9 MiB, 91099136 bytes, 177928 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / ...

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