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It is now EXT4. EXT4 is a sucsessor to EXT3 and 2. With the first Linux versions, EXT was used: The extended file system, or ext, was implemented in April 1992 as the first file system created specifically for the Linux kernel. Inspired by the Unix File System (UFS) it was: designed by Rémy Card to overcome certain limitations of the MINIX file ...


Btrfs was never intended to be faster than ext4. Its best side is features. And robustness. I think it is a very good idea to use Btrfs as root filesystem, but only if you use EFI. If booting the old way, you should better creater a separate /boot partition on EXT4.


Run this for both sdb1 & sdb2. If external drive and you are sure everything is unmounted, you can run from inside your working Ubuntu. Others may need to use live installer. From liveDVD/Flash so everything is unmounted,swap off if necessary, change example shown with partition sdb1 to your partition(s) e2fsck is used to check the ext2/ext3/ext4 ...


I think the most important reason that ext4 is used as default is that it provides the best mix of stability, speed, and reliability for a the greatest range of workloads. Benchmarks routinely show it near the top in performance in all workloads. Other filesystems may beat it on a single benchmark, but often perform much worse on others. Btrfs has it's ...


I would create a fstab entry for the USB drive on each of the machines and set the uid and gid to 1000 with the desired umask. To get the UUID of the device sudo blkid -c /dev/null Hopefully you will be able to identify your USB device ID from here. Now create a directory where the USB should be mounted. sudo mkdir /meda/USBDrive Now, you can create an ...


Is trim actually supported by your SSD ? Type sudo hdparm -I /dev/sda | grep TRIM (assuming sda is your drive). Is there a line saying that TRIM is supported ?

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