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Questions tagged [dump]

Raw data, typically a section of main memory outputted to a file after the crash of a program or of the kernel itself. Questions relating to debugging and analysis of dump files.

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How to compress coredump file in Linux

After changing the creation location of the coredump file using the core_pattern file, the coredump is not compressed. Before changing the content of core_pattern, the content was |/usr/lib/systemd/...
Masuri's user avatar
  • 101
-2 votes
1 answer
80 views

What type of device is required to view emmc chip on Linux [closed]

I have emmc I want to read on Linux, what kind of devices can read emmc on Linux ?
Imran Ali's user avatar
0 votes
1 answer
84 views

failed to restore root filesystem from dump backup

I'm currently testing a backup/restore of RHEL 6.4 OS via the "dump" and "restore" on testing environment, and I do know that RHEL 6.4 seemed too outdated in nowadays. Butsome ...
user53815's user avatar
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0 answers
96 views

Dump file conversion with iconv

I tried to convert the dump file with iconv. The command that I used: iconv -f utf-8 -t iso-8859-1 | iconv -f windows-1251 -t utf-8 Unfortunately, it converts to the unreadable letters: ГЋГЎГєГїГўГ«...
prokol's user avatar
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0 answers
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How do I dump text from the GNU info reader?

I would like to dump the text from a page of a tool's info documentation to a text file and read and edit it subsequently in Vim. Does the GNU info reader permit dumping of its text, or is there an ...
Julius Hamilton's user avatar
5 votes
2 answers
1k views

What causes \r's to be inserted before \n's when retrieving a binary file over ssh, and how do I circumvent it?

I have inherited a Ubuntu 14.04 production server which needs to be upgraded to 20.04, and I would like a sandboxed version to experiment with first, hence I want to dump and restore the filesystems ...
Thorbjørn Ravn Andersen's user avatar
0 votes
0 answers
280 views

Dumping a packed shared library

I have 2 packed shared libraries, the second one is probably dependent on first one. The first one is packed with UPX, and the unpacking code is in .init_proc. I have tried attaching a debugger and ...
Mikel Frejie's user avatar
2 votes
1 answer
513 views

Dumping a live filesystem

I've managed to root a device and I'd like to dump it's entire filesystem in order to analyze and reverse engineer it. This device claims to be Linux 2.6.31 mips GNU/Linux. The way I can access the ...
444A49's user avatar
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9 votes
2 answers
12k views

What is the difference between the od, hd, hexdump and xxd commands?

What is the difference between the od, hd, hexdump and xxd commands ? They are all commands for dumping files and they can all dump it in various formats such as hexadecimal, octal or binary. Why ...
Nicryc's user avatar
  • 295
-1 votes
1 answer
510 views

accidently used dd on the wrong drive

i was trying to make a bootable usb with disk dump command in ubuntu, but i typed the wrong device name and hit enter so it started the process on my external hard drive , but after a few seconds i ...
salmanrf's user avatar
-4 votes
3 answers
594 views

DATA DUMP WHATEVER IS ON usb 3-1 BUY USB ADDRESS ONLY

how can i retrieve data from "ANY" device using "ONLY" it's "USB ADDRESS" ergo usb 3-1 so that "WHATEVER" attaches to this port get dumped as opposed to any other descriptors "NOT" "NOT" /dev/...
user378296's user avatar
2 votes
1 answer
4k views

How to generate memory dump from outside a running container

I have running a .net service inside a container. And I am observing the memory consumption of this service inside the container is gradually going up to the limit set to that container and after it ...
JYOTI PRAKASH MALLICK's user avatar
3 votes
0 answers
946 views

Memory dump on Ubuntu 18.04 failed on too big /proc/kcore/

There are two great articles about how to aquire memory on Linux using linpmem: SANS holdmybeersecurity Trying the approach from holdmybeersecurity I ran into the following issue, which seems to be ...
gies0r's user avatar
  • 131
0 votes
1 answer
237 views

Error message "jrcmd: not found" when I execute a script

I am getting the error below when I execute a script: Ksh: line 1: jrcmd: not found When I execute the same command in weblogic server, I get the output, but executing the same command inside a ...
Mallikarjun Malage's user avatar
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0 answers
39 views

redhat kernel dump investigate [duplicate]

I have received a vmcore.gz (400MB) and vmcore-dmesg.txt file from production machine that had kernel panic. The producation is redhat 5 machine with kernel 2.6.18-431.el5 In order to investigate the ...
ilansch's user avatar
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0 votes
1 answer
1k views

How to use ubifs image with modprobe? To extract ubifs image

I try to do something like this - link. All examples in the web are not working at all. modprobe ubi mtd=0 modprobe: module ubi not found in modules.dep modprobe ubi modprobe: module ubi not found ...
Bulat's user avatar
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2 votes
0 answers
1k views

Extract a running ELF from a memory dump

Our teacher gave us as homework a memory dump from a VBox (Ubuntu 16.04.9) and said that the message we need to get is printed by an ELF currently running in the VM. This is my what I get after ...
Teodor Vecerdi's user avatar
1 vote
1 answer
492 views

watch netcat transfer dump from android to pc

how can i monitor netcat transferring from android to my linux machine i used this command on android device ( sender ) to make a full dump for my device : dd if=/dev/block/mmcblk0 | busybox nc -...
Qassam Mahmoud's user avatar
1 vote
1 answer
209 views

Exporting and importing a mysqldump from within a mysql CLI heredocument

The following code drops a DB user and a DB instance by the name of test, if both exists, then creates an authorized, all privileged DB user and a DB instance with the same name (also test). mysql -u ...
Arcticooling's user avatar
0 votes
2 answers
39 views

Program to instantly host a mysql database from a dump file [closed]

I'm looking for a utility program which can take a dump of a mysql database and basically host a "fake" or minimal mysql server with that data for testing another program which requires it. Has ...
Tanami's user avatar
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3 votes
0 answers
18k views

How to get RAM map?

I had read a topic by Gabriele Tolomei about map of Linux memory. I want to make a memory map for my Linux Ubuntu 16.04, using basic utilities, like dd and xxd, and I want to compare my result with ...
KupuJIJI's user avatar
3 votes
1 answer
520 views

AIX: how to do a dump that contains the application related infos too?

There is a server having an interesting problem (a few other had the problem too). We think that SAP takes almost all the paging, but we cannot say that 100%, because when this problem occurs, even a "...
pepite's user avatar
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0 votes
1 answer
1k views

centOS: full file system backup and restoration [duplicate]

I have a dedicated server with centOS. I need to do a full system backup, save backup file on server and download a copy of that backup file to my personal computer (local computer in office). From ...
Blackpanther0001's user avatar
1 vote
1 answer
253 views

dump command - does it save extended attributed, ACLs and SELinux settings on ext4 filesystems?

I'd like to use dump(8) for dumping an ext4 filesystem for transport to another system. However, it is not clear from research that I have come across as to whether the dump/restore pair will ...
mdpc's user avatar
  • 6,884
4 votes
1 answer
565 views

ssh dynamic port forwarding and tcpdump shows cleartext

I'm trying to encrypt my web traffic using SSH dynamic port forwarding in case I happen to be in moot places such as internet cafes, hotels and so on. On my laptop I installed an SSH server and ...
Thomas Ukenagashi's user avatar
0 votes
1 answer
154 views

Can I start the VM in openVZ once the checkpoint is completed during vzdump?

I have a VM with huge amount of data, close to 800GB. I was taking a vzdump of this VM. During the vzdump, openvz suspends the vm and does a check point and does a final sync of data before completing ...
Mani's user avatar
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0 votes
1 answer
45 views

dump with old 43BSD,question about tape size

On old 43bsd i want to dump /usr This command works dump 0uf /dev/rmt12 /dev/ra0a dump is command 0u mean full and update /etc/dumpdates f mean use /dev/rmt12 and /dev/ra0a is the root partition. ...
elbarna's user avatar
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6 votes
3 answers
13k views

How to compress a mysql dump using 7z via a pipe?

I've been attempting to compress my mysqldump output via 7z using the pipe operator (I have seen this question, but its answer uses xz not 7z). This is what I have tried so far: mysqldump -u root -p ...
Josh Pinto's user avatar
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6 votes
2 answers
3k views

Deleted my ssh keys

I'm on a Mac (OSX). I've accidentally deleted my ssh keys, but I haven't restarted my computer yet so I'm still able to access servers with my key. I guess the ssh-agent has some form of it in memory?...
James's user avatar
  • 183
0 votes
1 answer
2k views

Linux dump, which folders/files are excluded from first backup?

When using dump, level 0, to save the whole concerned partition : $ dump -0f /path/to/target/drive / I'm said some folders are excluded (I guess, at least, tmp folder). I have not found more detail ...
ArchiT3K's user avatar
  • 577
1 vote
2 answers
346 views

How to check if a dump-generated backup is OK?

When dumping my FS with dump, e.g.: $ dump -0f /path/to/usb/nonexistant-file-name / I get a binary file, extension-free. It's normal. I regularly store such backups, if ever I need to restore one. ...
ArchiT3K's user avatar
  • 577
0 votes
1 answer
57 views

Linux dump(8) outputs nothing

I am dumping my live partition. All works ok in terminal. Until the 100%. I dump from live mint partition to an USB key. $ dump -0f /dev/sdc1 /dev/sda2 Once done, I look at my USB key. Nothing on ...
ArchiT3K's user avatar
  • 577
1 vote
2 answers
1k views

du: combine both timestamps

On Linux, du offers the displaying of timestamps: atime OR ctime OR mtime Question: Is there an easy way to get all three of them displayed at the same time (one file, all three timestamps)? I guess ...
erch's user avatar
  • 5,050
0 votes
1 answer
66 views

Can't find the location of DUMPed file system

I dumped a file system, chose the name for the dump ("home_fs_dump"), the dump was declared successfull, and yet I couldn't locate this name anywhere in the system. (And at the end I tested if locate ...
dziadek1990's user avatar
1 vote
0 answers
1k views

Restore from incremental backup?

I read some books which use dump and restore. They said that during restore, first restore the latest full backup, and then restore each incremental backup created after the full backup. But I am ...
Tim's user avatar
  • 102k
3 votes
1 answer
968 views

/etc/fstab 5th column

Whatever I have understood so far about the 5th column of /etc/fstab that it is for dump command to run on that file system. if entry is 0 dump command will not run and if the entry is 1 then dump ...
Raman Tiwari's user avatar
11 votes
2 answers
6k views

Dump network traffic of single application (strace-like)

I'm looking for a way to dump pcap of network data generated by an application, in a simmilar way strace dumps syscalls, etc. eg: net-strace somecommand -args somecommand would do something over the ...
gesti's user avatar
  • 111
1 vote
0 answers
6k views

tracking directory permission changes

Permission of a certain directory named 11203 got changed twice because of which the hosted app encountered some problems. When I used the command: ausearch -i |grep chmod |grep 11203 I got the ...
Gokul's user avatar
  • 1,071
2 votes
2 answers
5k views

How to mount a dd-image which was created via fmem (memory dump tool)

I've used the tool fmem for creating a memory dump dd-file. That works fine. But how can I access this image? I've tried it with mount but it says I have to specify a filesystem. But non of the given ...
Dee's user avatar
  • 21
8 votes
2 answers
8k views

A way for saving running state of a program [duplicate]

I have a program that will perform a lengthy calculation which may take several days to be completed. Is there a way to save the program's running state; so I will be able to turn off the computer ...
Minimus Heximus's user avatar
5 votes
0 answers
2k views

What is the structure of Libvirt Qemu VM dump/save files?

I need to do some exploration of Qemu-KVM virtual machines physical memory (particularly I need to check the fact of the physical memory intersection). In order to do that I'm trying to save VM's ...
Vitaly Isaev's user avatar
23 votes
3 answers
113k views

How to dump memory image from linux system?

I know to dump memory images in Windows. (eg-dumpit) But I don't know how to dump memory images in Linux. I want to get memory images in Linux and from Linux to Linux with ssh connection or something....
bakie's user avatar
  • 363
1 vote
1 answer
97 views

Why doesn't `restore` display my UTF-8 encoded filenames correctly in interactive mode?

When using the interactive mode of the restore utility to restore backups made with dump UTF-8-encoded filenames doesn't display correctly, see example below. The ??s should be ös ... $ sudo restore -...
PetaspeedBeaver's user avatar
6 votes
3 answers
5k views

Are there any ways or tools to dump the memory cache and buffer?

I want to check out what files are loaded in buffer. Just so it's clear, the buffers & cache I'm referring to are what show up when you run the free -m command: $ free -m total ...
jofox's user avatar
  • 119
2 votes
1 answer
193 views

Compare a filesystem to a dump

Is there a way to compare the current state of the filesystem to that stored in a backup created by dump? I recently had some major corruption in the filesystem and my most recent backup is from ...
brianmearns's user avatar
1 vote
1 answer
556 views

What are the relative merits of the various standard Unix archival utilities? [closed]

There are many archival tools for Unix, with varying degrees of availability. To make matters more confusing, many of them can write each other's formats. I am seeking more information on their ...
Michael Ekstrand's user avatar
1 vote
2 answers
1k views

Chaining mysqldumps commands to output a single gzipped file

Let's say I have these series of commands mysqldump --opt --databases $dbname1 --host=$dbhost1 --user=$dbuser1 --password=$dbpass1 mysqldump --opt --databases $dbname2 --host=$dbhost1 --user=$dbuser1 ...
developarvin's user avatar
3 votes
2 answers
2k views

tshark dump only when string is matched

I'm working on a web capture script where I only want to dump the traffic if the HTML body or URL contains a string defined in a .txt file. Here is my tshark command which dumps src ip dest url (HTTP ...
jemik's user avatar
  • 31
11 votes
4 answers
46k views

Moving /boot and MBR to a new drive

I have a CentOS 6 server with two hard drives in it. My old 3TB drive has been giving me some issues so I'm moving things over to a new drive. Because my / and /home partition are managed by a LVM ...
Cloudkiller's user avatar
2 votes
1 answer
1k views

Extract UNIX dump file in Windows 7

I have a dump-file of the UFS partition created with FreeBSD's dump. How to view its content and extract some files from it on Windows 7? Cygwin's restore provides very limited functionality and ...
Alex G's user avatar
  • 401