Questions tagged [mkfs]
mkfs is a Linux program used to build filesystems.
135
questions
1
vote
1
answer
82
views
ext2 How to choose bytes/inode ratio
How approximately calc bytes-per-inode for ext2?
I have 7.3GB storage (15320519 sectors 512B each). I have made ext2 filesystem with block size 4096
mke2fs /dev/sda2 -i 524288 -m 0 -L "SSD" -...
0
votes
0
answers
38
views
mkfs.vfat -- No such file or directory [duplicate]
I'm on Debian Bookworm.
I am trying to format my USB drive to FAT32 filesystem.
~$ lsblk -f
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS
sdb ...
0
votes
0
answers
73
views
How create isolated ext4 filesystem on file
There is a 25G /dev/sda6 ext4 partition mounted on /data. I'm trying to make a fixed size filesystem on a file using fallocate, mkfs.ext4, mount:
fallocate -l 5G /data/new_storage
mkfs.ext4 -E ...
11
votes
3
answers
5k
views
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 ...
0
votes
0
answers
119
views
I altered the partition table (resized the root and created a new partition and formatted it) but can't log into my arch system anymore
Yesterday, I had an idea of having two root partitions for my arch system, one which would contain packages and system files and another one to store my personal files (music, videos, etc).
With that ...
0
votes
1
answer
432
views
How do I put the XFS journal on another drive?
Trying to put the journal of a big hard drive on a smaller, but faster SSD.
$ sudo mkfs.xfs -N -l logdev=/mnt/data-journal/journal /dev/sdc
unable to get size of the log subvolume.
$ sudo mkfs.xfs -N ...
13
votes
4
answers
3k
views
Difference between mkfs -t ext4 and mkfs.ext4
Is there a difference between sudo mkfs -t ext4 /dev/sdb and sudo mkfs.ext4 /dev/sdb?
Or is the latter just an alias of the former?
3
votes
1
answer
229
views
mkfs ext2 ignore number-of-inodes
I want to make ext2 file system. I want to set "number-of-inodes" option to some number. I tried several values:
if -N 99000 then Inode count: 99552
if -N 3500 then Inode count:
3904
if -N ...
0
votes
1
answer
900
views
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
...
1
vote
1
answer
328
views
Unix ext2 superblock - file system creation date
I am trying to find the creation date on an ext2 file system. I seem to get a current date using dumpe2fs.
The problem is that the original ext2 superblock specification does not contain such ...
0
votes
1
answer
871
views
how do I make a new filesystem image?
I know I used to be able to do it, and its frustrating I cant recall.
I want to write an ext4 filesystem to a disk image in a folder. I don't want to re-partition my drive, I just need the filesystem ...
1
vote
1
answer
137
views
External HDD disconnects when formating. Disk or SATA-to-USB adapter problem?
My SATA HD used as an external disk connected to a USB port is not working. When I try to format it using sudo mkfs.ext4 /dev/sdj1, I get: "Input/output error while writing out and closing file ...
2
votes
1
answer
280
views
mkfs fails if called after a 'dd' operation
I want to delete all files on one my eMMC blocks (e.g. /dev/mmcblk0p1) and re-create the filesystem afterward (with ext4).
So I unmount and erase:
umount /dev/mmcblk0p1
dd if=/dev/zero of=/dev/...
0
votes
1
answer
20
views
/dev/sda4/ on USB stick isn't available after formatting. 'Discs' shows the following:
size: 58 GB
contents: unknown
device: /dev/sda4
partition type: basic data
When I ran the format, I selected the type which I expected result in type of Linux.
I found a similar issue from 2019, but ...
0
votes
0
answers
1k
views
Creating a "virtual/ fake" usb drive on linux filesystem
Reference post: Create virtual USB drive
Problem statement:
I would like to create/ convert and area on my (Ubuntu 20.04) filesystem such that application's think a USB is connected to my machine, and ...
2
votes
1
answer
6k
views
Bad magic number in super-block
So I have three disks. I had thought to label the volumes themselves:
$ e2label /dev/sda
d80-JD-75MS
$ e2label /dev/sdb
e2label: Bad magic number in super-block while trying to open /dev/sdb
Found a ...
2
votes
1
answer
274
views
mkfs ext4 on Debian 11 - inconsistent resize_inode results on filesystem creation
I am running Debian 11 with all current updates (kernel 5.10.0-18 and e2fsprogs 1.46.2-2).
I have been mkfs.ext4 some filesystems on various volumes - with lvm2 on top of mdraid, fwiw.
Specifically, ...
0
votes
0
answers
156
views
Disabling reliability features on an ephemeral ext4 filesystem
I am using cryptsetup to create a new, temporary filesystem with a random, ephemeral key. This is an alternative to creating an encrypted swap file and using a giant tmpfs mount, as that would have ...
0
votes
1
answer
157
views
Mystery of the missing disk space
I have about ~350Gb that I wanted to copy from server to a new local 1Tb external ssd I bought for the task. So I used rsync but the 1Tb disk ran out of space during the copy, which was odd. So I ...
0
votes
1
answer
55
views
linux + is it possible to understand when filesystem was created on disk
is it possible to understand , when filesystem was created on disk ( date and time )
we try the following ( on sdb disk )
tune2fs -l /dev/sdb | grep time
Last mount time: Mon Aug 1 19:17:...
0
votes
0
answers
1k
views
Formatting USB external HDD fails with IO error
Output of lsblk:
root@pve:~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 1.8T 0 disk
├─sda1 8:1 0 1007K ...
1
vote
1
answer
862
views
Backup created with rsync takes up more space on external drive than on source
I am using rsync to make a backup of Ubuntu running on a Raspberry Pi. I exclude all the usual directories whose contents are only created after boot up anyway.
The rsync writes to a backup image that ...
1
vote
1
answer
4k
views
how to make `mkfs.ext4 /dev/block/sda1` quickly?
I develop an application on Android, need to manage the disk, my program is root permission to run in the background of Android.One problem is that formatting disk partitions is so slow that it takes ...
1
vote
1
answer
1k
views
Why does Parted mkpart ask for file system type, if I can later format with another file system? [duplicate]
What I Did
I attach an HDD, lsblk -S shows this drive as sdc
I use sudo parted /dev/sdc/ to start parted against sdc
I create a partition table as: mklabel gpt
I make a partition: mkpart my-cool-...
0
votes
1
answer
276
views
How does "Inodes per group" and "lazy_itable_init" flag relate to the "Inode count" value in an ext4 filesystem?
I am trying to root cause a customer case where 2 Identical drives, formatted with the same command, led to a difference of ~55GB in total disk space due to additional Inode overhead.
I want to ...
1
vote
1
answer
500
views
Define Data Mode in mkfs.ext4 command
Is there an option to define the default data mode when using mkfs?
The command mkfs -t ext4 /dev/sdc1 format a partition as ext4 with default journal mode data=ordered.
I could set the data=journal ...
0
votes
1
answer
833
views
Partitions for loop device not found from script, visible elsewhere
I'm currently trying to partition and then format a disk image using parted, by first mounting a blank disk image onto a loop, creating the appropriate partitions, and then formatting these partitions ...
1
vote
1
answer
144
views
Creating Filesystem on File that has definied size
I know that when you make a new file and create a ext4 filesystem on it with mkfs, the filesystem will be smaller than the file because of the blocksize.
However, when I want to have a filesystem that ...
0
votes
0
answers
510
views
How do I reformat/clean this drive with lvms on it?
I have two RAID-10 spans. One I had misconfigured into an lvm-thin. It currently looks like this.
sdb 8:16 0 1.8T 0 disk
├─sdb1 8:17 ...
0
votes
1
answer
1k
views
Why can mkfs.ext4 not create a 2048 block size file system on 650 MB image file?
The commands I invoke are the following
Create image file
dd if=/dev/zero of=benj.luks bs=1k count=666000
Set up LUKS container
cryptsetup luksFormat benj.luks
Set up loop device and open the ...
0
votes
1
answer
147
views
How to create mkfs for LFS? [closed]
I am trying to run following command mkfs -v -t ext4 /dev/sda1 to create file system but I got an output /dev/sda1 is apparently in use by the system; will not make a filesystem here!. How can I ...
1
vote
1
answer
192
views
Query detected badblocks from NTFS
When creating an ntfs partition with mkfs.ntfs, it does zeroing and badblocks scanning by default. But unlike e2fsck -fccky it does not output how many badblocks it actually found.
I would like to get ...
1
vote
1
answer
481
views
Unable create ext4 filesystem under LUKS
I've successfully created a LUKS drive from a 32Mb USB flash drive. However when I write an ext4 filesystem to it I am unable to mount the result, or even run fsck or dumpe2fs etc.
The drive shows up ...
2
votes
1
answer
6k
views
Fail to format disk, missing mkfs file. [mkfs: failed to execute mkfs.* : No such file or directory]
While working on a fresh install of debian on GCP, I am trying to format a disk to xfs.
sudo mkfs -t xfs -n ftype=1 /dev/sdb -f
which gives me this error:
mkfs: failed to execute mkfs.xfs: No such ...
1
vote
1
answer
4k
views
mkfs error: /dev/nvme0n1 apparently in use by the system; will not make a filesystem here
I added a nvme storage device to a Dell 7820 workstation (alias: new-machine).
The storage device was used in another server (alias: old-machine) and it seems like it was configured as RAID.
Anyway I ...
1
vote
1
answer
7k
views
mkfs doesn't work -- hangs on "Creating journal"
I needed to reformat my 14GB stick to ext4. I used mkfs.ext4. But this program hung on Creating journal
Neither Ctrl c nor kill -9 could interrupt this. I rebooted and now there is a similar problem ...
3
votes
1
answer
813
views
How can I enable transparent compression on exisitng f2fs partition?
As far as I know it is possible to enable on new partition. Is there any way to enable compression on existing f2fs partition? I don't want to wipe and create a new partition to enable this feature.
5
votes
2
answers
4k
views
What am I doing wrong when formatting my flash drive to NTFS?
Before the attempt to format a flash drive:
$ sudo fdisk -l
...
...
Disk /dev/sdc: 7.32 GiB, 7864320000 bytes, 15360000 sectors
Disk model: DataTraveler 3.0
Units: sectors of 1 * 512 = 512 bytes
...
1
vote
2
answers
4k
views
How to create a mkfs.ext4 file system on an SD card that can be written to by anyone?
I'm using up to date Arch Linux 5.12.5.
SD cards from time to time become corrupted, and if not bricked have to be reset/ reformatted.
I do this as follows
# 1. unmount the card / make sure it's ...
1
vote
1
answer
577
views
badblocks and mkfs.ext4
I've ran badblocks on a disk /dev/sdc and now I want to use the saved file with badblocks as an argument to mkfs.ext4 -l on a partition.
Block size used in both commands are the same. But I'm ...
0
votes
1
answer
243
views
Create ext4 img from diff
I'm trying to create an update image from an ext4 filesystem which should only consists of the changed files. So basically I have a Debian distro with an ext4 root file system. I want to create a base ...
3
votes
0
answers
465
views
Building Custom Kali Linux ISO Image Failed
I'm using a Kali Linux on virtual box and I'm currently trying to create a custom Kali Linux ISO using the following commands:
apt-get install git live-build cdebootstrap
git clone https://gitlab.com/...
0
votes
3
answers
1k
views
how to create disk label without creation filesystem on new disk
we have rhel 7.2 server , server is VM server
and we add new disk - sde
with the following example we create ext file system with label - disk2
mkfs.ext4 -L disk2 /dev/sde
mke2fs 1.42.9 (28-Dec-2013)
/...
1
vote
0
answers
3k
views
mkfs complain about disk is apparently in use by the system
on our rhel server we want to re-create ext4 filesystem as
[root@worker ~]# mkfs.ext4 -j -m 0 /dev/sdd -F
mke2fs 1.42.9 (28-Dec-2013)
/dev/sdd is apparently in use by the system; will not make a ...
0
votes
1
answer
348
views
how to format a partition of a diskimage?
I made an empty binary image file with fallocate -l 500M sd.img command and then partitioned it using gdisk and now I can see my partitions using gdisk:
Command (? for help): i
Partition number (1-2): ...
0
votes
0
answers
250
views
Undo a disk format while disk is still attached
I've been struggling with a disk that's a logical volume. Disk would not work with me and I decided to partion and format the disk.. Then realized that I have de-attached and attached the disk without ...
0
votes
2
answers
416
views
massive resource consumption during mkfs.ntfs on a zvol, why (and how can I limit this)?
On my machine mkfs.ntfs is slow and results in massive use of resources, preventing me from using the machine for anything else. According to top it (or rather directly related zvol processes) is ...
0
votes
1
answer
83
views
Format microSDCard which has an OS written on it
I've got a 32G micro SDCard which I created a bootable ubuntu installation on it for use on a home server some while ago. I want to format it to FAT32 but have been unable to do so with either gParted/...
0
votes
0
answers
437
views
Change File Permissions inside an Image File in Linux
I have an application (running in an IDE under my user account) that does the following:
It creates an empty file with ~1GiB size.
It calls mkfs on this file (btrfs currently, but may change in ...
2
votes
2
answers
3k
views
Accidentally ran mkfs command on already available disk
I had a volume of 350Gb attached to my Linode server. It was running out of space so I resized it to 400GB from the dashboard and restarted my server. Then I used the df -h command to check if the ...