Data structures used to store metadata for each file on a Unix/Linux filesystem.

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Is there a way to set the number of inodes in VirtualBox when creating a VDI?

Using VirtualBox 4.3.26 in a Windows 7 host to create Ubuntu 14.04 guest. One of my main reasons to do so is process large numbers of small files, taking advantage of a SSD drive on the host. I was ...
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1answer
15 views

Is it possible to limit the number of inodes for a user?

I want to limit the resources available to user by setting a limit on the number of inodes they can create. Is there a way to do this?
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1answer
278 views

“No space left on device” when writing to NTFS on Ubuntu

I'm on Ubuntu 12.04 and want to backup data to my external hard drive which is NTFS. When running cp -rp or rsync, I get no space left errors like this: `rsync: mkstemp "/media/Expansion ...
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1answer
118 views

How to remove directory flag?

I have a .trp video container witch is shown as a directory. Is there a quick way to remove the directory bit from the inode, so the folder is shown as a file? (Not sure if this solves my problem but ...
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1answer
36 views

Which file attributes are stored in the directory entries and which in the inodes?

I want to do some deduplication of old files, replacing duplicates with hardlinks. To minimize loss of metadata, I want to set the directory entry attributes of each new hardlink to the attributes of ...
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2answers
440 views

XFS Incorrect statement of “No space left on device”

I have a server setup of an XFS partition on LVM on a Ubuntu 14.04.1 LTS. While copying files to the home partition, "No space left on device" is displayed. df -h displays sufficient space: ...
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27 views

Can a file be created from an inode?

There is an apache process which logs to an access and error log. The two log files have been deleted, but the apache process has not been restarted or reloaded so it still has open filehandles for ...
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82 views

All of the NTFS hard links damaged, where are those 0kb hardlinks stored and how to recover them?

This is Windows 7 x64 sp1 on a NTFS file system. All hardlinks within C:\Windows\System32 folder disappear, and the Windows can't boot, because even the osloader, C:\Windows\System32\boot\Winload.exe ...
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227 views

From where comes the inode number of a file mounted through NFS?

I asked a question on codereview to know if I could safely replace the following code: :inode => [stat.ino, stat.dev_major, stat.dev_minor], which threw NotImplementedError because of jruby not ...
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74 views

Can inode numbers be reused in HFS+?

Does the HFS+ file system reuse inode numbers after entries are fully deleted? I am trying to determine if the inode number always grows or if the numbers are reused.
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50 views

Traversing through the inode to find the contents of the file stored in different data blocks

I am reading about the EXT2 filesystem and I got an understanding about it. Every file system comprises of data and metadata (inode). The file system is divided into a number of blocks with 4 main ...
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1answer
148 views

Zero inodes even after formatting hard disk

I have an external 1Tb harddisk which due to some reason was showing following under df -i Filesystem Inodes IUsed IFree IUse% Mounted on /dev/sdb1 0 0 0 - ...
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1answer
97 views

Difference between 'du' and 'du -b'?

root@host:/var/log/apache2# du access.log -bh 753M access.log root@host:/var/log/apache2# du access.log -h 1.2G access.log Why is there such a huge difference in size for the same file?
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1answer
66 views

Kate changes inode

Why does Kate change inode when I change file? For example: ookami@ookami-E7130:~/test$ touch test ookami@ookami-E7130:~/test$ ln test test1 ookami@ookami-E7130:~/test$ ls -li total 0 2782182 ...
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2answers
88 views

how do I know if the number of inodes are already taken?

According to what I have read here http://www.linux.org/article/view/intro-to-inodes, the inode structure occuppies 1% of the storage unit size. Besides, it may happen (if I recall correctly due to a ...
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5answers
10k views

How to get the actual directory size (out of du)?

How do I get the actual directory size, using UNIX/Linux standard tools? Alternative question: How do I get du to show me the actual directory size (not disk usage)? Since people seem to have ...
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1answer
178 views

where does boundary of file system lie in Linux?

I am curious that hard link cannot cross the boundary of file system. But where exactly is the boundary? I know hard disk and flash disk are two file systems; /home and /var are two file systems. But ...
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1answer
11k views

Changing max inode count number in ext3 filesystem in Cent OS

Assuming that I use ext3 filesystem in Cent OS: Can I increase the number of Free Inodes in the filesystem? If Yes how? When I run tune2fs -l /dev/sda1 it got these inodes statistics: Filesystem ...
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1answer
90 views

Using inode number to locate hardlinks

How can I use the inode number to locate all hardlinks to the file "file.txt" in my home directory?
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238 views

Can't delete files with special (and odd) filename characters

I was cleaning up my NAS and found this odd situation. $ pwd /Volumes/Backup/NoteHP/Outras/Ed Motta $ ls -larit total 12932 7786751625 -rwx------ 1 rjdsantos staff 3388293 Feb 2 2005 Ed Motta ...
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1answer
429 views

Can an inode table on the root partition be-rebuilt or salvaged?

A friend (not technical) has a Linux server running CentOS which will no longer boot. His IT guy looked at it and says the inode table on the root partition was basically gone. Since the inode table ...
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0answers
123 views

Show only files owned by the user

I have a folder containing lots of backup images. I want users to only see their own files. I've tried setting the permissions to 000 but they still can see the file using ls (the backups belong to ...
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1answer
164 views

Zip, tar: is there a file table

Is there a file table, or inode structure (like in filesystems) of a zip or tar file?
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100 views

What is the efficiency of NTFS Junctions?

Long story short, I am using the steamtool application, which was originally developed for the following reasons: Steam by default would save all your games to C:\ SSDs are becoming the new primary ...
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7answers
704 views

Go to directory with unknown name

While unpacking a tarball, I encountered a directory which ls reports as "??????????????? ?????". Presumably, the name is not in unicode? Anyway, I can't figure a way to access the folder. I've tried ...
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1answer
28 views

When will the modified time of folder be changed?

When will the modified time of folder be changed, on both of windows and linux? I know the modified time changed when its inode is changed. But when will the inode of folder be changed?
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1answer
1k views

Reverse lookup of inode/file from offset in raw device on linux and ext3/4?

In linux, given an offset into a raw disk device, is it possible to map back to an partition + inode? For example, suppose I know that string "xyz" is contained at byte offset 1000000 on /dev/sda: ...
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2answers
153 views

Is it possible to create a file and a hardlink to it without initializing the data?

I want to create a file of 2GB, but I don't care about the contents of it. I currently use dd with /dev/zero, but this is fairly slow. Is it possible to create a file and a hardlink to it, without ...
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1answer
202 views

How do “file headers”, “bit maps” and “inodes” come into the picture when managing filesystems?

I'm a little confused on how these terms are thrown around in a book that I am reading. Are they all different terms that refer to the same concept, or are they slightly different implementations ...
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1answer
151 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 ...
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0answers
139 views

When referring to filesystems, what is the difference between a “live” and a “dead” inode?

My understanding of 'inodes' (from http://en.wikipedia.org/wiki/Inode) is that they contain the information necessary to access certain blocks of a file, but not the file data itself. Then I was ...
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1answer
5k views

Cannot mkdir: Too many links

I'm trying to untar several tar files. I encountered something like this tar: NCBI_SRA_Metadata_Full_20110601/SRA037312: Cannot mkdir: Too many links Is there a limit to the number of files that ...
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1answer
828 views

Relationship of iNode indirect pointers to maximum file size

Let's say you have an iNode that is filled to capacity with no indirect pointers. If you give it one indirect pointer, does its maximum file size simply double?
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4answers
962 views

Linux filesystem with inodes close on the disk

I'd like to make the ls -laR /media/myfs on Linux as fast as possible. I'll have 1 million files on the filesystem, 2TB of total file size, and some directories containing as much as 10000 files. ...
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2answers
9k views

How to change the inode size on an EXT3 partition?

The setup: For my dual-boot laptop, I have bought a large hard drive to use as external USB solution. I decided to use EXT3 as filesystem, thinking to use Ext2IFS to access the drive from Windows (as ...
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3answers
3k views

tail -f not tracking file changes

I was recently looking into using tail -f to monitor some text files like so: tail -f /var/sometext However, when I did some testing, it doesn't seem to work. What I did was I created a new file and ...
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3answers
3k views

Access file by its id and change file attributes

Just like every file also directories have file id. You can see them by typing ls -i How do I view file content by its id? How do I change directory attribute to file (remove D) and vice versa!
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2answers
973 views

inode-block ratio

How we can find the ratio of inodes to blocks? How can we change that ratio?
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1answer
44 views

effect on inode while resizing the LV

In Linux when we resize the partition with the logical volume(LV), how is the inode adjusted?
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4answers
8k views

Remove a file on linux using the inode number

If you create a file on UNIX/linux with special chars, like touch \"la*, you can't remove it with rm "la*. You have to use the inode number(you can if you add the \ before the name, I know, but you'd ...
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2answers
9k views

How to calculate proper amount of inode/block sizes for a linux filesystem

I have an old reiser filesystem which I'm going to convert to Ext3. The problem I have is to determine the proper block- and inode-sizes for this partition. The partition is 44 GB large and has to ...
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2answers
3k views

Is it possible to find all files with a given inode? Efficiently?

It is possible to find all the paths to a file with a given inode, in general, using find's -inum option. But this has awful performance for typical filesystems. What options are there to improve ...
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1answer
2k views

how can I determine how many inodes a directory uses?

We're running into an inode limit on our fileserver and I'm doing an experiment to reduce the number of inodes. How can I find out how many inodes a directory uses? I read that the linux kernel ...
0
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1answer
533 views

Unable to boot to Ubuntu. Inconsistency in disk, X server didn't start. Illegal blocks in Inode

I am unable to boot into my Ubuntu system. First I get that fsck died with exit status 4 Then I try to do it manually as prompted and I get that an Inode has illegal blocks and asked to clear it. ...