Segmentation fault while trying to recover file with extundelete


Login or Register for Dates, Times and to Reply

 
Thread Tools Search this Thread
Operating Systems Linux Fedora Segmentation fault while trying to recover file with extundelete
# 1  
Segmentation fault while trying to recover file with extundelete

hello,

I accidentally removed a directory with its contents with rm -r and I don't have a backup. I got to know about extundelete utility on linux and downloaded on my Linux Fedora 28 notebook PC. The file system is ext4. I log in to the system as single user mode and unmount the /home directory from the partition where the file was located; in this case it is /dev/mapper/fedora-home. After I unmounted /home I ran the fsck on the partition and it was successful, but when I try to recover the directory (or a single file) I get segmentation fault like this:
Code:
/ extundelete --restore-directory /home/milhan/Desktop/path/directory /dev/mapper/fedora-home
NOTICE: Extended attributes are not restored.
Loading filesystem metadata ... 3256 groups loaded.
Loading journal descriptors ... Segmentation fault (core dumped)

extundelete gave segmentation fault no matter what file I tried to recover, whether a directory or a single file, and I am certain I entered the file path correct. I did this right after the directory or file was removed. I unmounted the /home directory immediately thus avoiding any writes to the partition. Below is my filesystem:
Code:
~ df -h
Filesystem               Size  Used Avail Use% Mounted on
devtmpfs                 3.9G     0  3.9G   0% /dev
tmpfs                    3.9G   78M  3.8G   2% /dev/shm
tmpfs                    3.9G  1.5M  3.9G   1% /run
tmpfs                    3.9G     0  3.9G   0% /sys/fs/cgroup
/dev/mapper/fedora-root   50G   12G   35G  26% /
tmpfs                    3.9G  256K  3.9G   1% /tmp
/dev/mapper/fedora-home  401G   57G  324G  15% /home
/dev/sda1                976M  191M  718M  22% /boot
tmpfs                    790M   24K  790M   1% /run/user/1000

Thank you.
# 2  
A segmentation fault core dump is not due to user unfamiliarity. It is a program misbehavior outside the user control. In this case it appears that the extundelete utility has fallen out of maintenance and that it requires a version of e2fsprogs that is too old for up to day system.
Have you given a try to testdisk or Photorec?
This User Gave Thanks to Aia For This Post:
# 3  
As far as I understand, Photorec tries to recover everything it can. It is telling me it needs another about 34 hours to complete. It has been nearly 6 hours since I started it already.

Last edited by milhan; 09-10-2018 at 03:22 PM.. Reason: correction
Login or Register for Dates, Times and to Reply

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #75
Difficulty: Easy
Apple's Mac OS X was based on NeXTStep, but iOS was not based on Mac OS X.
True or False?

10 More Discussions You Might Find Interesting

1. Programming

C. To segmentation fault or not to segmentation fault, that is the question.

Oddities with gcc, 2.95.3 for the AMIGA and 4.2.1 for MY current OSX 10.14.1... I am creating a basic calculator for the AMIGA ADE *NIX emulator in C as it does not have one. Below are two very condensed snippets of which I have added the results inside the each code section. IMPORTANT!... (11 Replies)
Discussion started by: wisecracker
11 Replies

2. Shell Programming and Scripting

Count Segmentation fault and write to the file

Hi everyone Need to get version of npm application that have several output like this: root: nmp -version 10 root: nmp -version 10 root: nmp-new -version 3.1 root: nmp-old -version Segmentation fault count them , after that write to the file like this: 10 2 3.1 1 (1 Reply)
Discussion started by: indeed_1
1 Replies

3. Programming

Segmentation fault

I keep getting this fault on a lot of the codes I write, I'm not exactly sure why so I'd really appreciate it if someone could explain the idea to me. For example this code #include <stdio.h> main() { unsigned long a=0; unsigned long b=0; int z; { printf("Enter two... (2 Replies)
Discussion started by: sizzler786
2 Replies

4. Solaris

Segmentation fault

Hi Guys, I just installed and booted a zone called testzone. When I logged in remotely and tried changing to root user I get this error: "Segmentation fault" Can someone please help me resolve this? Thanks alot (2 Replies)
Discussion started by: cjashu
2 Replies

5. Programming

Using gdb, ignore beginning segmentation fault until reproduce environment segmentation fault

I use a binary name (ie polo) it gets some parameter , so for debugging normally i do this : i wrote script for watchdog my app (polo) and check every second if it's not running then start it , the problem is , if my app , remain in state of segmentation fault for a while (ie 15 ... (6 Replies)
Discussion started by: pooyair
6 Replies

6. UNIX for Dummies Questions & Answers

Segmentation fault

#include<stdio.h> #include<malloc.h> #include<unistd.h> #include<stdlib.h> void *start_1(void *argv) { printf("thread 0x%x\n",(unsigned int)pthread_self()); pthread_exit((void*)1); } void *start_2(void *argv) { printf("thread 0x%x\n",(unsigned int)pthread_self()); return (void*)2; }... (2 Replies)
Discussion started by: vincent__tse
2 Replies

7. Programming

segmentation fault.

This code is causing a segmentation fault and I can't figure out why. I'm new to UNIX and I need to learn how to avoid this segmentation fault thing. Thank you so much. Thanks also for the great answers to my last post.:):b: int main() { mysqlpp::Connection conn(false); if... (3 Replies)
Discussion started by: sepoto
3 Replies

8. Programming

segmentation fault

What is segmentation fault(core dumped) (1 Reply)
Discussion started by: gokult
1 Replies

9. Programming

segmentation fault

Hi, I am having this segmentation fault not in the following program, bt. in my lab program . My lab program is horrible long so cannot post it here bt. I am using the following logic in my program which is giving the segmentation fault. Bt. if I run this sample program as it is it dosen't give... (3 Replies)
Discussion started by: mind@work
3 Replies

10. UNIX for Dummies Questions & Answers

Segmentation Fault

Hi, While comparing primary key data of two tables thr bteq script I am getting this Error. This script is a shell script. *** Error: The following error was encountered on the output file. Script.sh: 3043492 Segmentation fault(coredump) Please let me know how to get through it. ... (5 Replies)
Discussion started by: monika
5 Replies

Featured Tech Videos