fsck Filesystem-Specific Options

Caltrop · 10-09-2018, 09:10 AM

it is mentioned in the man page but what are Filesystem-Specific Options

I found this:
fsck -V -t ntfs --kerneldefrag /dev/sda3 (???)
but it does nothing special

looking to defrag non-linux drives

from what I can tell fsck does this automagically...?
fsck -V -t vfat /dev/sdd1

I know for ext4 there is:
e4defrag /dev/sdc1
but linux rarely needs defraging

I do on occasion end up at a initramfs prompt when things get messy.
Usually messed up inodes requiring fsck /dev/whatever.

jsbjsb001 · 10-09-2018, 09:16 AM

Quote:

Originally Posted by Caltrop

it is mentioned in the man page but what are Filesystem-Specific Options

I found this:
fsck -V -t ntfs --kerneldefrag /dev/sda3 (???)
but it does nothing special

The -V option;

Quote:

-V Produce verbose output, including all filesystem-specific commands that are executed.

The -t option lets you specify the filesystem in question.

Quote:

looking to defrag non-linux drives

from what I can tell fsck does this automagically...?
fsck -V -t vfat /dev/sdd1

First, why? Second, a script perhaps?

Quote:

I know for ext4 there is:
e4defrag /dev/sdc1
but linux rarely needs defraging

I do on occasion end up at a initramfs prompt when things get messy.
Usually messed up inodes requiring fsck /dev/whatever.

If you're wanting to defrag a filesystem of a different OS, use that OS's tools instead. For Linux, use Linux tools for that.

Caltrop · 10-10-2018, 05:59 AM

duh, I know what the options are
I can also use 'man' to pull up the instructions

I want to defrag another filesystem
using the other OS to defrag my portable drives...
can not do that at home since I am Linux and work is crappy Win10

guess there is no solution...

jsbjsb001 · 10-10-2018, 06:09 AM

Quote:

Originally Posted by Caltrop

duh, I know what the options are
I can also use 'man' to pull up the instructions

Why ask the question then?

Quote:

I want to defrag another filesystem
using the other OS to defrag my portable drives...
can not do that at home since I am Linux and work is crappy Win10

guess there is no solution...

I think you've misunderstood my point (and maybe I wasn't clear enough in making it), the point is that it's a bad idea period. Linux filesystems are not compatible with Windows filesystems, period. Just because Linux has drivers to read/write to/from Windows filesystems this does not mean they are compatible with each other - their not.

If you want to know what options there are to do it anyway, why not ask Google? You found this site, so how come you can't do a search for what you want?

michaelk · 10-10-2018, 07:24 AM

Typically fsck passes specific options to the file system checker which for NTFS is ntfsfix. ntfsfix does not have any options, can only repair basic filesystem inconsistencies and does not defragment.

Basically the only way to defrag NTFS on a linux system is write the files somewhere else then copy them back. Otherwise you need to defrag using a windows operating system.