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2
votes
3answers
57 views

What is an orphaned inode? [closed]

I understand what an inode is but what is the exact definition of an orphaned inode? I don't really get what that means. UPDATE There was a time that a server I was managing ran out of inodes but ...
2
votes
1answer
48 views

Understanding sparse files, dd, seek, inode block structure

At work we use sparse files as part of out Oracle VM environment for the guest disk images. After some questions from a colleague (which have since been answered) I am left with more questions about ...
0
votes
0answers
23 views

Recover content of a directory when the block where directory file is located is corrupted?

A user has a Personal folder in it's /home/user folder. Bad sectors appeared on the hard drive. If I vi the Personal folder file it's empty and if I go into it and I do an ls, the system gets stuck ...
1
vote
1answer
49 views

Filesystem: How to find block of file represented by inode? [closed]

I am writing a file system for my operating system and am doing research on existing file systems before I start designing my own. I came across some slides about the System Five File System and am ...
3
votes
1answer
48 views

Partition Errors and Remounts Read-Only when Accessing Specific File

I have a pretty basic system running Ubuntu 16.04 (this question is not specific to Ubuntu, but rather ext4 partitions), 1 HDD, running a few partitions: sda1 - EXT4 - 100G - / sda2 - EXT4 - 723....
0
votes
2answers
48 views

How to see information inside inode data structure

I can do an ls -li to see a file's inode number, but how can I list information inside a particular inode by using that inode number.
0
votes
1answer
44 views

How to find the parent of a file by inode

I want to use ntfsundelete to maintain the directory structure of the recovered files. The output of ntfsundelete is like this: Inode Flags %age Date Size Filename 191321 FN.. ...
4
votes
1answer
91 views

What is using trillions of inodes on my almost empty server? [closed]

I have 18446744069923968593 inodes (which seem really too much) and much more problematic: I have 18446744069414835186 used so the system won't create any other file (even if the disk is almost empty)....
1
vote
0answers
52 views

Does a file move operation over SAMBA preserve the inode number?

If I have a directory exposed over a SAMBA share and a user, from either a Linux or Windows system, moves a file from one place to another on that share, does SAMBA know to ask the operating system ...
2
votes
2answers
257 views

why Inode file size is different than actual size

I noticed one log file having less size than what's mentioned in inode. $ ls -lhtr /var/log/test/fk-3p-kafka/kafkaServer-gc.log -rw-r--r-- 1 fk-3p-kafka fk-3p 11G Apr 10 18:27 /var/log/test/fk-3p-...
1
vote
0answers
32 views

Selinux inode security struct allocation

i'm trying to understand allocation of inode_security_struct in Selinux. I looked for a source code of selinux and there is only one allocation of this struct on line 230 in hooks.c file. This ...
4
votes
1answer
51 views

Is there a tool to create a hard link to an unlinked inode?

Assume you have a filename/directory name, whatever, which is hard linked to inode 6400. Alas, the file/directory actually exists (completely intact, and maybe it only lives in a single data block, ...
2
votes
1answer
73 views

Does adding the content at the start of file result in updating all the data blocks?

In the Unix File system (UFS), the file is represented as an inode structure which has 15 pointers that reference the direct blocks or indirect blocks. Taking the below images is an example. Each ...
1
vote
0answers
18 views

How much control do concrete file systems have over the VFS inode cache and the buffer cache?

I want to make sure I'm understanding how VFS inodes and file system inodes working together. A file system's inodes are stored on the block device and that is where they live. When an operation is ...
2
votes
1answer
45 views

Is an inode number a non-changeable id of an inode?

I am trying to understand the concept of the inode number of an inode. Is an inode number an/the id of an inode? Does an inode have exactly one inode number? or can an inode have zero or more than ...
4
votes
2answers
366 views

Is there an inode for a directory?

Each file has an inode. Is there an inode for every directory ? If not, how does Linux manage directories.
0
votes
2answers
63 views

Files with no attributes, owner, group and inodes

Yesterday we started having problems with our emails. Investigating this, I found that there some files on our system that show all the attributes including inode, owner, group, permissions, size and ...
3
votes
1answer
51 views

If I grow an ext4 partition, will it increase the number of inodes available?

If I create a small filesystem, and grow it when I need to, will the number of inodes increase proportionally? I want to use Docker with the overlay storage driver. This can be very inode hungry ...
2
votes
1answer
51 views

size of directory reported by ls [duplicate]

I understand the size reported by ls corresponds with number of inodes inside the directory, not their actual size. I have noticed peculiar behavior, when displaying directory size with ls. Here is ...
3
votes
1answer
41 views

Can I create a file on ext4 with a depth > 1 for testing purposes?

In order to test an analysis tool, I need a file where the depth (eh.eh_depth) is greater than 1. I've tried a couple of things: A large file (1GiB) Creating hundreds of smaller files (1MiB), ...
0
votes
0answers
203 views

why my mobile HDD can not mount on the opensuse 42.1?

I want to mount my usb mobile HDD(mobile hard disk drive) to /mnt. I tried the following command sudo mount -t ntfs /dev/sdb1 /mnt/usbhd1 but I get the error message: Failed to open index ...
0
votes
0answers
39 views

How does inode work on ntfs partition?

I am using a multi OS computer. I have one hard drive with three major partitions, namely Windows, Ubuntu and Data(ntfs). And the ntfs Data Drive is mounted on Ubuntu. Suprisingly, when i call ll -i [...
1
vote
0answers
26 views

Are the links between the inode and data blocks of a file removed when deleting the file?

Suppose there is only one hard link to a file. When rm the hard link, the inode and data blocks of the file will be marked as unused. But are the links from the inode to the data blocks of the file ...
0
votes
0answers
17 views

How are the sizes of Linux directories determined? [duplicate]

The results of ls -lh provides, among other things, a listing of subdirectories and their sizes. As the directories' sizes are not determined by the sum of the files within them, how are they ...
1
vote
2answers
94 views

How to delete corrupted directory

While copying music to the sd card of my android phone, the laptop froze so I had to reboot it using sysrq magic. Now any file manager on my Ubuntu or Android shows a directory 0 bytes big, and ...
-1
votes
1answer
648 views

Linux folder size limit

We are using below code to create folder in Linux server. File dir = new File(filePath); if(!dir.isDirectory()) dir.mkdirs(); After that creating files inside that ...
1
vote
0answers
37 views

How to increase inode size in Debian [duplicate]

I have VPS of following configuration. RAM : 4GB Swapped RAM : 4GB Disk : 500GB I'm unable to start any service it's showing No Space is available. df -i Filesystem ...
4
votes
3answers
1k views

“mv” file with garbled name by inode number?

I have several files with encoding issues in their file names (German umlauts, burned on CD with Windows, read by Windows and synced to Linux with Seafile. Something, somewhere went wrong...). Bash ...
1
vote
2answers
192 views

Number of files does not match inodes

I notice that the number of used inodes on the OCFS2 partition is around 28 million. I moved a folder that contained 518K files and the number became 22 million. The following script finds the number ...
9
votes
2answers
512 views

Is it possible to rename a file or directory using the inode?

I changed the /home directory to a different partition and couldn't access the files from it, something I have been able to solve from this question - How do you access the contents of a previous ...
1
vote
2answers
75 views

Why do I not see inode data in a hexdump or dd?

I'm not quite familiar with filesystem layers in the Linux kernel but I suppose that dd and hexdump do not get the inode information since they only do open() and read() syscalls, but I might be ...
1
vote
2answers
111 views

Two hard linked files share inode

I'm working on an assignment for my college course, and one of the questions asks for the command used to create a hard link from one file to another so that they point to the same inode. We were ...
0
votes
3answers
128 views

How to influence the inode number, e.g., at filesystem restore?

Files in *nix filesystems almost always have an associated inode number. In most cases users seem not to deal very much with those inode numbers, as they use filenames (i.e. a hierarchical pathnames-...
2
votes
2answers
132 views

Why debugfs doesn't show crtime in nanoseconds?

I am using: debugfs -R 'stat <7473635>' /dev/sda7 to get the file creation time (crtime). Inode: 7473635 Type: regular Mode: 0664 Flags: 0x80000 Generation: 1874934325 Version: ...
1
vote
0answers
171 views

Recovering files with directory structure

EDIT: I am using Debian 8.1.0 So I somehow deleted my /etc directory. While I have not been able to recover the complete /etc directory hierarchy with all files, I have received different parts from ...
0
votes
0answers
65 views

ext4: How to save free blocks / inodes to a file

I'd like to save all free blocks / inodes from an ext4 file system to one or more files for further analysis and file recovery. It would be good to create one file for every contiguous set of free ...
3
votes
1answer
176 views

Where are my inodes going?

My root filesystem is running out of inodes. If this were an issue of disk space, I'd use du -s to get a top-level overview of where the space is going, then head down the directory tree to find ...
-2
votes
1answer
96 views

Create five copies of file with the same inode number

How can I create five copies of /etc/profile with the same inode number?
1
vote
1answer
68 views

Why are the first inode of the `/` mounted partition and inode of `/` different?

[~]$ stat -c %i / 2 As you can see in above, the inode for / is 2. But the First inode of /dev/sda2 is 11. [~]$ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 ...
0
votes
1answer
91 views

Kernel current working directory and inode information placement

I'm reading some doc about UNIX but I don't understand two things: Why is important for the kernel to know the current working directory of the running process? Why not keeping the inode information ...
5
votes
2answers
876 views

Why does renaming a file with mv command alter an inode's “change” date & time?

A file hello.c is renamed to hi.c. As the output of stat command shows, [change] time stamp has been changed. usually it is changed when inode of file got modified. Why renaming with mv command ...
1
vote
0answers
69 views

keep same inodes metadata with rsync or ignore metadata with du

I'm trying to synchronize two folders from a remote computer. I want to use rsync to send the folder, and du to check if the space used is identical on the remote computer. The problem is even with a ...
2
votes
0answers
916 views

Exundelete can't restore the file

I'm trying to restore 2 important tar.gz files I know their directory but extundelete not restoring them although it's giving me the inode number. Loading filesystem metadata ... 2127 groups loaded. ...
2
votes
3answers
255 views

Manipulate multiple files by inode

I have a large number of files that contain backslashes \ that I would like to manipulate, but whenever I try something like: $ ls -li 2036553851 -rw-rw-r-- 1 user user 6757 May 20 00:10 ...
1
vote
2answers
335 views

ext4 file system tuning for storage partition

I searched the Internet, but I was not able to find a satisfying answer to my problem. The Problem I'm encountering currently is, that I'm transitioning my data from a NTFS Partition to a ext4 ...
2
votes
2answers
138 views

How many inodes do I need to access to read a file?

Imagine I want to access the blocks of file /hello/file. How many inodes should I walt through? I guess two, since I should not go through the root inode, right?
6
votes
1answer
299 views

Limit the inode cache used by a command

I want to run a task with limits on the kernel objects that they will indirectly trigger. Note that this is not about the memory, threads, etc. used by the application, but about memory used by the ...
2
votes
0answers
248 views

What does an inode for a socket contain?

I read somewhere that the inode for a TCP socket would contain the buffer space. Is that true, and if so, does it mean that the inode contains a memory address for the buffer space used by the socket,...
5
votes
2answers
191 views

Why does '/' have the inode 2?

On many *nix systems like OS X and Ubuntu, We can see the inode of root directory is 2. Then what is the inode 1 used for?
1
vote
1answer
273 views

How to setup boot scripts to save orphan inodes after improper shutdown?

after abnormal shutdown in dmesg I have [ 16.107445] EXT4-fs (dm-1): INFO: recovery required on readonly filesystem [ 16.107450] EXT4-fs (dm-1): write access will be enabled during recovery [ ...