Label the partition using the e4label command. where blockdevice is a partition which will contain the ext4 filesystem you wish to create. Maybe this doesn't make any sense any more (or maybe it never did). The steps for creating an ext4 file system are as follows: Format the partition with the ext4 file system using the mkfs.ext4 or mke4fs command: mkfs.ext4 blockdevice. Why would it matter which cylinder the partition starts at as long as it lines up with the partition table? Is there some way I can test if this is an issue? I haven't noticed any performance issues. Maybe this doesn't make any sense any more (or maybe it never did). Leaving a couple of MB padding between partitions on an SSD allows me to enlarge the partition later if I need to to fix this issue. Having a few non-functioning cells on the target device makes the partition appear fractionally smaller than it was when the image was taken. Apparently, SSD cells can fail over time and the storage controller on the SSD will just skip these non-function cells in IO. At times (after the SSD was getting older) I would attempt to restore and get an error saying that the target partition was not large enough to write the image. When I first started using SSDs, I found that there could be a problem in restoring a partition from an image. This can cause disk misalignment which can cause slow performance. Why your partitions are having a gap in between ? How would I go about checking the filesystem to make sure that everything is good?Īt the moment, I can open the new partitions in dolphin but I cannot write (I cannot copy any folders into the new partition or create new folders). The partition looks correct in GParted, meaning that the size is what I was expecting. Writing superblocks and filesystem accounting information: done Locate the preferred partition and confirm that it uses the ext4 file system. The terminal prints out a list of block devices. Next, verify the file system change using the command: lsblk -f. Mkfs.btrfs mkfs.ext3 mkfs.hfsplus mkfs.ntfs Format a disk partition with the ext4 file system using the following command: sudo mkfs -t ext4 /dev/sdb1. Mkfs.bfs mkfs.ext2 mkfs.hfs mkfs.msdos mkfs.xfs List all supported filesystem types: $ mkfs. $ sudo mkfs.xfs -f /dev/sdb1 -L "USB Drive" Then try again to run mkfs.ext4 /dev/sda1. Your partition number should be 1 (because of /dev/sda1) and you should choose the partition type 83 (Linux). To do this, run fdisk /dev/sda with t you can change your partition type in fdisk, which will lead you through the process. Format the partition to ext4: sudo mkfs. You can try to change the partition type in fdisk. Run the next command to create a EXT4 partition that takes the entire area: sudo parted /dev/sdb -script - mkpart main ext4 0 100. $ sudo mkfs.ext4 /dev/sdb1 -L "USB Drive" Format with EXT4 Create a GPT partition desk by issuing: sudo parted /dev/sdb -script - mklabel gpt. $ sudo mkfs.ntfs /dev/sdb1 -L "USB Drive" $ sudo mkfs.exfat /dev/sdb1 -n "USB Drive" $ sudo mkfs.fat -F 32 /dev/sdb1 -n "USB Drive" Warning: Formatting the USB drive will cause the loose of data on it!įormat a USB drive to the desired format and create a label (optionally): Format To Unmount the USB drive if it is mounted: $ sudo umount /media/user/usb0 In the example above, the USB drive is recognized by the operating system as a disk named /dev/sdb with a single partition /dev/sdb1 mounted on /media/user/usb0.
#Linux format partition ext4 how to
I will provide the examples of disk formatting to the most popular file system types: FAT32, exFAT, NTFS, EXT4, XFS and will show how to list the all supported file systems.Ĭool Tip: Check the real actual size of USB flash drive or SD card! Read More → Format USB Drive in LinuxĮxecute the lsblk command to identify the name of the partition on the USB drive you want to format: $ lsblk -fp In this note i will show how to format an external HDD, SSD or USB flash drive in Linux from the command line using mkfs utility. Formatting USB drives in Linux from the command line (terminal) is very easy.