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Full Discussion: Segmentation fault while trying to recover file with extundelete
Operating Systems Linux Fedora Segmentation fault while trying to recover file with extundelete Post 303022948 by milhan on Sunday 9th of September 2018 05:54:38 PM
Old 09-09-2018
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.
 

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LEARN ABOUT NETBSD

virecover

VIRECOVER(8)						    BSD System Manager's Manual 					      VIRECOVER(8)

NAME

     virecover -- report recovered vi edit sessions

SYNOPSIS

     /usr/libexec/virecover

DESCRIPTION

     The virecover utility sends emails to users who have vi(1) recovery files.

     This email gives the name of the file that was saved for recovery and instructions for recovering most, if not all, of the changes to the
     file.  This is done by using the -r option with vi(1).  See the -r option in vi(1) for details.

     If the backup files have the execute bit set or are zero length, then they have not been modified, so virecover deletes them to clean up.
     virecover also removes recovery files that are corrupted, zero length, or do not have a corresponding backup file.

     virecover is normally run automatically at boot time using /etc/rc.d/virecover.

FILES

     /var/tmp/vi.recover/recover.*  vi(1) recovery files
     /var/tmp/vi.recover/vi.*	    vi(1) editor backup files

SEE ALSO

     vi(1), rc.conf(5)

HISTORY

     This script, previously known as recover.script, is from nvi and was added to NetBSD in 1996.  It was renamed in 2001.

AUTHORS

     This man page was written by Jeremy C. Reed <reed@reedmedia.net>.

BSD
								  October 9, 2006							       BSD
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