A file system is the specification of how files in a computer should be stored, named and organized. This tag should be used for generic file system questions. For specific file system questions (FAT, NTFS, ext4, ...) use the appropriate tag instead.

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23
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6answers
3k views

What USB drive filesystem works out of the box on Windows, Linux, and OS X? [duplicate]

What USB drive filesystem works out of the box on Windows, Linux, and OS X so that, when I give a 64GB USB drive to my dad, I don't have to tell him to first type in sudo apt-get install exfat-fuse ...
0
votes
3answers
203 views

How “big” can a tree be?

When you have a folder in a folder in a folder, you have a tree of 3 (three) "levels". How many levels can a tree have in a Computer? Id Est: How many steps can it take to get to a folder (with the ...
0
votes
0answers
46 views

Access Mask filter in Event log XML not working

I'm trying to monitor folder creations and deletions using a filesystem auditing and a custom XML filter in the Windows Event Viewer. The XML is as below: <QueryList> <Query Id="0" ...
43
votes
9answers
61k views

How can you see the actual hard link by ls?

I run ln /a/A /b/B I would like to see at the folder a where the file A points to by ls.
2
votes
1answer
54 views

No /etc/fstab folder to amend swap issue

I was given an answer earlier on how to correct a swap file issue. Now however, I discover that I have no /etc/fstab folder in my file system to alter. I have a /etc/fstab.d folder but it is empty. I ...
2
votes
1answer
59 views

Trying to mount encrypted file system failing

I had created an encrypted file system using the following commands: # dd if=/dev/zero of=/opt/vol # losetup -e aes /dev/loop0 /opt/vol Password: # mkfs.ext4 /dev/loop0 The above device was mounted ...
20
votes
4answers
9k views

View Filesystem Access in Real Time on Mac OS X

Had a sysinternals tool (filemon) for that, but now I can find something similar for the mac. I'm a developer and I basically want to debug "file not found" or "wrong permissions" errors.
0
votes
0answers
17 views

Windows 7 auto-play not opening device files

I want to see my android device internal files and sd card files. So when I connect my device to my machine; It shows me autoplay pop up. But when I select open device to view files; popup just ...
5
votes
3answers
76 views

Union filesystem with “versioned” filenames?

Do you know if there is a unioned fs for GNU/Linux that shows also "shadowed" files with slightly different names? I.E. if I have two fs like: root1 +dir1 +dir2 +file1 +file2 +file3 root2 +dir1 ...
0
votes
0answers
21 views

Different sized data blocks in a single file system

In Unix, each file uses one inode and each inode, in turn, may use a variety of number of blocks to store data. The size of the blocks in a file system may be configured or chosen but it must be ...
0
votes
1answer
95 views

windows 7 ultimate x64 bit unable to save or browse files

i have this problem where i can't open or save files. any application that saves or browse files wont save or browse files. For example, in microsoft word, if i click save as, a windows explorer would ...
4
votes
2answers
1k views

Apple has “sparse bundles” but not sparse files?

Backstory: I use a Mac (10.6.4), and to this day when I download a torrent using Vuze, no matter what configuration I try Vuze allocates space for the entire file before it starts downloading said ...
0
votes
4answers
4k views

Average file size statistics

Is there any way to calculate, and breakdown, average file sizes for a given directory (or drive)? Something that can give details such as:| Files of 4KB - 22KB: account to 20% of all files Files ...
0
votes
0answers
28 views

How to generate an ext4 filesystem for an embedded system?

I'm looking through the ubuntu man pages on genext2fs and am trying to understand how to properly choose some of these parameters. How do the block size, number of inodes and number of ext2 blocks ...
27
votes
4answers
12k views

How to lock a file against deletion but still make it writeable?

I want to make a file locked against deletion but still be writeable. How do I do this? The file in question is a Truecrypt volume as a file on a NAS SMB Network share, so I don't want to ...
2
votes
0answers
41 views

Limit the size of the disk driver cache on Linux

I am running some experiments for comparing storage systems under load in Linux. To this end I want to force the file system to access the disk itself without caching too much data on RAM. How can I ...
0
votes
2answers
117 views

How to mount Linux rev 1.0 ext4 filesystem data file?

$ file data Linux rev 1.0 ext4 filesystem data, UUID=9f923f9d-2cbd-4a49-8b5c-6a3cece42509 (extents) (64bit) (large files) (huge files) $ mount -t ext4 data /mnt/ mount: wrong fs type, bad ...
3
votes
3answers
277 views

How can I find out the /sys/class or /sys/devices entry for a mounted filesystem?

What I have: I know the place in the filesystem where a microSD card is mounted, e.g. /storage/sdcard1 What I need: To find out which device folder it corresponds to, e.g. /sys/class/mmc_host/mmc0 ...
0
votes
0answers
58 views

How to make mounted file system writable using sshfs

I have an exFat-formatted external hard drive mounted on a Raspberry Pi. I use OSX fuse to mount the Pi on my local file system on my Mac using this: sshfs user@IP:/pi/directory/to/mount ...
0
votes
0answers
32 views

How to find out what process created a certain file after the deed has been done?

I know this question exists. What are my options to get a hold of an application (probably malfunction in code) that creates a "bad file" like in this screenshot: It's always exactly this file, ...
0
votes
1answer
20 views

can't recover my files in my thumbdrive

I got a thumbdrive brand Kingston model DT101 G2 with capacity 32 GB. The problem is when I copy files from my computer to this thumbdrive, it seems I can't reopen it (files) at another computer when ...
0
votes
1answer
20 views

how can I remove write access from a file?

I have a program, (logger lite -vernier) which has a configuration file, that I use to set up scientific experiments. the configFile when I run logger lite, the software changes the config file, and ...
4
votes
2answers
548 views

Is there a mountpoint program in OS X?

Linux systems have a /bin/mountpoint which can be used to check if a particular directory is a mount point for a volume. Does Mac OS X have an equivalent program, or is there some other way to run ...
1
vote
3answers
49 views

Bash command for finding file extensions with largest size

I am trying to find file extensions with sorted by size in a directory and sub directory. Something like this: 76K .pek ./Adobe Premiere Pro Preview ...
0
votes
1answer
66 views

What are the potential problems of having files with one or more spaces at the beginning of the file name?

In Windows 7 and later, what problems could be caused by having one or more spaces at the beginning of the file name? It seems like a bad idea, but does it actually cause problems? If so, what ...
0
votes
0answers
18 views

How to add a disk

I would like to start to use a disk: /dev/sda (see bellow). What do I need to do before I could copy files on it? (centos 6) # fdisk -l Disk /dev/sda: 1030.8 GB, 1030792151040 bytes 255 heads, 63 ...
0
votes
0answers
16 views

How to install Sysfs backlight software on my Toshiba Tecra R850?

I'm running Ubuntu 14.04 on VirtualBox, which seems to have emulated graphics. I can adjust my brightness and have graphics drivers installed, but Calise doesn't recognise either. It wants sysfs ...
1
vote
0answers
79 views

Does any linux disk format support transparent folder compression? (Like NTFS)

I feel like I could use transparent, seamless folder compression. One way to achieve this, I think, is to compress normally, and mount an archive with Nautillus. AFAIK. you can run programs from the ...
0
votes
0answers
112 views

Repairing HDD cylinder/head mismatches of corrupt HFS+ file system

After having to do a hard reset on my laptop, my external USB drive's file system got corrupt. Disk Utility sees the drive and its partitions but they appear full (they aren't) and I can't mount them. ...
0
votes
2answers
133 views

How to change long file names (created in linux) in windows?

I have copied some data from my linux machine to my external hard disk. When I want to read some files on my windows machine, I can't open it. I get error The specified path does not exist On ...
187
votes
2answers
92k views

“directory junction” vs “directory symbolic link”?

MKLINK [[/D] | [/H] | [/J]] Link Target /D Creates a directory symbolic link. Default is a file symbolic link. /H Creates a hard link instead of a symbolic link. /J ...
1
vote
0answers
7 views

How to make a custom collection or grouping folders in windows?

I use windows 8.1. I have 10 folders in my root folder of a drive, namely folder1, folder2, folder3, folder4, folder5, folder6, folder7, folder8, folder9 and folder10. I want to group these folders ...
2
votes
2answers
84 views

Unable to delete folders from Mac archive on Windows

I extracted a zip file, but found that I cannot delete the extracted folders afterwards. Including the actual file folder and the __MACOSX folder. If I shift-delete these files, nothing happens. If I ...
10
votes
2answers
422 views

Why is deletion speed in Windows often periodic?

Just out of interest, what is the reason for deletion times to be periodic often? In Windows 8, the deletion dialogue window shows deletion speed in a diagram. If there is no reason, of course that ...
1
vote
0answers
75 views

Why does ZFS slow down making large files after 2.4 gig?

Zfs on linux, I'm making a large tar file, I'm watching it add to the file, and it goes very quickly, until it hits 2.4gig in size, then it just crawls, for hours. The same file on ext4 has no ...
0
votes
1answer
47 views

C:\ Directory size mismatch cmd vs gui [duplicate]

I am on Windows 10 and have a ~640GB (base 10) Hard drive with 2 main partitions on it C:\ and D:\ and also a recovery and system partition as can be seen here When I use cmd to determine the size ...
4
votes
2answers
175 views

What exactly is an inode as pertaining to filesystems?

As I understand them, apparently an inode basically points to the beginning of a file stored on disk. But it also seems that directories have the same functionality as well (i.e., they store the ...
10
votes
2answers
42k views

mount gives unknown filesystem type 'vboxsf'

I'm getting an error message mount: unknown filesystem type 'vboxsf' when trying to mount a shared folder on my guest Ubuntu machine. I have a Windows 7 machine running 4.1.22V Oracle VM VirtualBox. ...
1
vote
2answers
47 views

How do I change where windows 8.1 stores files by default?

So my C:\ drive is almost full, because of games. I noticed that a ton of the save data was there. I have also heard that you could either redirect or completely change the default save directory. So ...
0
votes
2answers
467 views

What is and how to open a .xsig file extension?

I have received a .xsig document, that I can read in plain text. Is there any way of visualize the document with an application?
1
vote
1answer
184 views

How can I tune my file system to be more resilient to data-loss?

Let's say I have a disk with a lot of partitions formatted with many different file systems. I very rarely write data to it but I very often read data from it. Now I'd just want to know what I can ...
24
votes
6answers
34k views

How do you make Windows 7 fully case-sensitive with respect to the filesystem?

I want to make Windows 7 case-sensitive when it reads/writes anything on the hard drive (the C drive, or any other NTFS drive). I found a video via google that says to change the registry key ...
1
vote
4answers
131 views

How to create a hyperlink file?

I know this question sounds too generic but I am unable to find an answer for it. How can I create a link (soft/hard) file which when opened, redirect me to a website with http protocol? One ...
1
vote
1answer
57 views

When I copy the contents of one drive, the copy takes up less space. Why? [closed]

I am trying to copy the contents of one hard drive to another hard drive. But once the copy is completed, the copy takes up less space than the original files. Hence not all files are being copied. ...
1
vote
1answer
99 views

Can't copy file on the same machine - Error 0x8007045D: The request could not be performed because of an I/O device error

I have Windows 2008 Server. In it I have 2 hard drives. One I use to store backup, I have it in the tray, which I turn on before backup and turn off after. I backup only virtual machines, my host is ...
28
votes
1answer
3k views

Why is FAT32 limited to just under 2^28 clusters?

With FAT16 the maximum partition size is 2GB when your maximum cluster size is 32K. This is calculated by multiplying the number of addressable units by the cluster size. (216 Allocation units) * ...
-2
votes
2answers
95 views

Windows 7 (64-bit): “C:\Program Files” versus “C:\Program Files (x86)” [duplicate]

I am running Windows 7 Home Premium (64-bit). I have read that the difference between "C:\Program Files" versus "C:\Program Files (x86)" is that one is for 32-bit executables whereas the other is for ...
2
votes
1answer
826 views

create replica of ext4 filesystem and re-use it

Is there a way that I can use my Linux ext4 file system, as such and then use it on some other computer. I have a dual-boot of Windows 7 and Ubuntu 10.04 and my partition table looks like this: ...
2
votes
1answer
61 views

Windows - How can I determine what is locking this network file

(a similar question has been asked by me before - this question relates to the same application, but a different - but probably related - problem) I have an application that regularly writes records ...
1
vote
0answers
105 views

Why does FAT32 only use 28-bits for addressing?

I was reading Why is FAT32 limited to 8 TiB? The answer to that question was that 4 bits were reserved "for future use". What advantage is there in reserving these bits? Surely register size, ...