Backing up is the process of making copies (a backup) of data which may be used to restore the original after a data loss event.

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181 views

Backing up partition using dd and changing files

I'm a Linux newbie. From what I've read, you can back up an entire partition like this: dd if=/dev/sda1 of=/media/external/backup Can anyone tell me if I need to worry about files being changed ...
3
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1answer
1k views

What do you filter / exclude list when doing backup with rsync? [closed]

I'm trying to build a comprehensive filter / exclude file, to prevent backuping stuff that doesn't make sense do backup, such as temporary / cache data or easily recreatable files. I would appreciate ...
2
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1answer
456 views

remove unallocated space from a partition image

I have just created an image of an sd card using dd and the image is compressing down less than expected. I suspect this is because the card had not been zeroed out before I started to make the image. ...
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3answers
2k views

Run Script once a day with systemd

I want to run a backup script 10 minutes after booting up my machine but only once a day. Is it possible to build up such scenarios with systemd?
3
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3answers
3k views

How do I backup via rsync to a remote machine, preserving permissions and ownership?

Drive A is 2TB in a closet at home. Drive B is 2TB in my office at work. I'd like drive A to be the one I use regularly and to have rsync mirror A to B nightly/weekly. The problem I have with this ...
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3answers
1k views

How to clone linux installation onto an external harddisk?

I see a lot of dd related questions, but could not find answers to the following. If question/answers already exist, please point to them, then flag to close, delete or merge. Can a working linux ...
3
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1answer
298 views

Byte-level versus file-level backups

This question is motivated from a reply by Craig Sanders. Thanks, Craig! In what case, are byte or block level backups, i.e. disk or partition image backups, more suitable than file-based backups? ...
7
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2answers
42k views

Compress a folder with tar?

I'm trying to compress a folder (/var/www/) to ~/www_backups/$time.tar where $time is the current date. This is what I have: cd /var/www && sudo tar -czf ~/www_backups $time" I am ...
1
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1answer
469 views

Automatic scheduled backup of website (/var/www and MySQL dump)

I've been trying to set up a scheduled backup for my server but i can't seem to get it working. I need to copy the contents of /var/www into a compressed file (tar?) in a folder in my home directory ...
1
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1answer
115 views

How to setup backup if the filesystem is read only

My remote server file system is read-only & its because my hard disk is broken .I want to take backup for taking any further action. Is it possible to setup a manual backup for the affected ...
4
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1answer
397 views

How to compare attributes of two files on Linux ext4

cmp(1) will of course tell me if the contents of two files are identical, but in order to test restoring from backups I also wanted to compare the relevant (!) file attributes. So if I did something ...
3
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2answers
322 views

Incrementally backup FTP to local computer

I want to backup a FTP directory (not backup to) with a cron script running daily. I'd prefer a solution that could sync the FTP to my local computer; only copy files changed and remove files that ...
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2answers
2k views

Check integrity of a dd backup

I just made a backup of an entire hard drive (50GB) over ssh via: dd if=/dev/hda | buffer -s 64k -S 10m | ssh myuser@myhost "cat > ~/image.img" What's now the best way to check the integrity of ...
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4answers
2k views

Best way to make encrypted backups while preserving permissions to a windows file system

For my home network I wanted to buy a NAS which supports disk encryption and NFS since it is important for me that the backup is encrypted but also that it preserves owner, groups and permissions ...
4
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3answers
13k views

How to copy between two remote hosts using tar piped into SSH from remote server when behind a firewall?

I'd like to transfer a directory between two servers, but compress the directory on the remote host before transfer, and then uncompress to another host. I'm sure it's possible to pipe everything all ...
2
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3answers
949 views

Copy/backup all dirs containing files matching a regexp

I would like to do a backup where I recursively go through a dir structure and only get directories with files whose names matching a particular regexp. I would like to keep the directory structure, ...
2
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1answer
2k views

Clear unused space with zeros (btrfs)

How to clear unused space with zeros ? (I am asking for tool for btrfs filesystem) I'm looking for something smarter than cat /dev/zero > /mnt/X/big_zero ; sync; rm /mnt/X/big_zero Like ...
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3answers
1k views

dd command for windows filesystem

dd is a handy tool for backing up a whole drive or filesystem in some situations. Now I am thinking about what if I use the tool for backing up Windows file-systems / drives (Windows 2003/2008) which ...
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4answers
4k views

How to clone/copy all file/directory attributes onto different file/directory?

I want to copy the attributes (ownership, group, ACL, extended attributes, etc.) of one directory to another but not the directory contents itself. This does not work: cp -v --attributes-only A B ...
18
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4answers
12k views

Clear unused space with zeros (ext3,ext4)

How to clear unused space with zeros ? (ext3,ext4) I'm looking for something smarter than cat /dev/zero > /mnt/X/big_zero ; sync; rm /mnt/X/big_zero Like FSArchiver is looking for "used space" ...
5
votes
3answers
2k views

Resume interrupted copying process

How to resume securely and reliably process of copying file $A into backup location $B done with pv "$A" > "$B" or cat "$A" > "$B" ? (let's assume file $A is very big, e.g. LVM2 snapshot file) ...
4
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2answers
340 views

How to backup entire xen dom0 (on debian)

How do you go about creating a bootable backup ISO of my computer (dom0)? I have tried remastersys and this backs up everything but Xen does not work properly. LiveCDs also do not work. Does ...
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3answers
3k views

Migrating a Virtualbox virtual machine into a physical dual-boot system

I'm running a Linux Mint 12 virtual machine in Virtualbox. I would like to move it into a dual-boot setup with my Windows 7 installation. I have lot of settings in there, and apps installed, and my ...
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5answers
11k views

System image of running Debian system?

Is it possible to backup a running Debian system to some kind of image file, that could simply be written back to another hard disk using dd in case of failures of the original (backed up) Debian ...
2
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1answer
195 views

Overwrite file and apply file system rights of overwritten files?

I backed up some linux configuration files to a windows machine, so the file system rights were lost. Now I would like to restore my backed up configuration by overwriting the configuration currently ...
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3answers
133 views

Taking complete backup of System and then restoring?

I am using kubuntu 10.04 and now I want to install Mac on my PC. I have my data scattered in over 200 Gb and I want take a backup such that with one command all my data is saved into a single file. ...
5
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2answers
926 views

On Mac OS X, how to encrypt a small folder and copy that to Google Drive or DropBox?

On Mac OS X, right now I use the following to back up a small project folder to a USB Flash drive: alias a='alias' a dateseq='date "+%Y-%m-%d %H:%M:%S"' a backup_proj='cp -a ~/code/MyProj ...
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3answers
2k views

Temporary restore LVM snapshot of root

I have a snapshot of the root filesystem that I want to boot with - bring the machine into a state it was a few days ago, run some tests and then go back to where I am right now. I tried editing ...
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3answers
3k views

Where, in automysqlbackup, do I add mysqldump parameters?

How to stop automysqlbackup's cron.daily script -- as installed and configured from apt-get install automysqlbackup -- throwing the following error: mysqldump: Got error: 1142: SELECT,LOCK TABL ...
6
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2answers
351 views

Back up mysql server

I want to backup all databases, users and etc on our mysql sever. I have come across the command mysqldump and believe I can use it like this? (Trying to backup a REMOTE server to our LOCAL machine) ...
7
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3answers
5k views

Give user permissions to all files and folders

I want to have a user who has access to all the files and folders on the system. This is for the purpose of using RSYNC on a local machine to backup a remote machine. At the moment we are using the ...
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3answers
657 views

is it safe to backup ext4 partition with partimage , which is detected as a ext3 partition

I use partimage to backup my ext4 partition, but during backup, the partition was detected as an ext3 partition. So I'm wondering if this can cause something bad.
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1answer
379 views

Backup from remote server

I'm a novice so go easy. :) If it makes a difference I'm using Ubuntu/Debian machines. I want to back up our dedicated web server to a local location in-house. This is for many reasons - I know that ...
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2answers
1k views

How to create a snapshot of a physical disk?

I have Windows 7 installed on one of my disks. I want to boot this Windows system in my Xen HVM, but I do not want the changes to be permanent. So I want to create a snapshot of my Windows 7 ...
3
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1answer
551 views

HP-UX 9: Backup filesystem using tar

So I've got an HP-UX 9 box that I'm trying to backup, first to a tape with fbackup, to no avail, and now to a folder shared over NFS. I'm using the command "tar -cvf /nfs/Results/backup.tar /" where ...
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4answers
5k views

Backup of LVM2 logical volume

I'd like to make backup on external drive of LVM2 logical volume in dd manner. Approach I consider is to make lv on extranl drive with identical size copy with dd (Please let me know if you see ...
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2answers
173 views

What should I teach in my Linux class? [closed]

I'm teaching a basic Unix class using Ubuntu. We've already covered basic Unix stuff such as: bash shell scripting file and directory permissions filesystem hierarchy common commands I would like ...
4
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2answers
6k views

How to copy qemu raw images?

I want to backup kvm virtual machines and copy machine's images another path or usb disk? How to copy " qemu raw images"?
4
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2answers
4k views

Why can't I copy my DVD with dd?

I tried dd, dd_rescue and ddrescue, all failed. I thought these tools bypass the filesystem and make a bitwise copy. dd is fooled, it finishes but just produces a small file and states it's finished. ...
1
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1answer
369 views

Can I get the backup option of cp and mv to work with directories?

--backup[=CONTROL] make a backup of each existing destination file The man page does say that it works on file. It doesn't seem to have any effect on directories. Is there anyway to make this ...
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0answers
48 views

Backing up to DVD [duplicate]

Possible Duplicate: Splitting large directory tree into specified-size chunks? I have a partition that is about 14G and I need to back it up to DVD in such a way that I can use each disc to ...
5
votes
1answer
891 views

Can an eCryptfs Home Directory Be Backed Up Remotely

The main idea I want to have is a backup script run rsync to copy my /home/.Private/user directory off to another server. This would allow the backup script to have no knowledge of the data, but mean ...
23
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5answers
16k views

Is it possible to mount a gzip compressed dd image on the fly?

I like create an image backup for the first time I'm backing up a system. After this first time I use rsync to do incremental backups. My usual image backup is as follows: Mount and zero out the ...
3
votes
1answer
288 views

Backing up chroots for host reinstall

I've had my workstation for a couple of years now and its slowly become a complex beast, taking on many roles for my dev and test work. I have done some research and was thinking of setting up some ...
3
votes
1answer
449 views

Where can I look for backup script?

I want find out where the backup script of a Fedora 8 server is. I haven't found it so far ( my Linux knowledge is very spare). I looked with crontab -l and I only can find a tempdelete.pl. Than I ...
3
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0answers
486 views

How to improve this backup script? [closed]

I wrote this backup script. I run rsync, tar and a dump of mysql. I'd like to add some features like email alert or some kind of statistic. Here is the script: #!/bin/sh DATE=`date +%D-%T` ...
4
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4answers
645 views

How can I move the entire OS to a different server?

I want to install RhodeCode on a test server at work. However, the internet access is restricted for that server, and RhodeCode has a lot of dependencies (I don't even have Python on that server). So ...
1
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1answer
91 views

Back up particular package and its dependencies

My question is: can we take a backup of a particular package and its dependencies? For example, if we install VLC it requires dependencies like kde filesystem,libcaca.so.0 etc.. can we take a backup ...
5
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1answer
3k views

bash force copy over same file

Our sysadmin has created a backup system that creates snapshots of the hard drive. When I try to restore an older version from the snapshot: cp /path/to/snapshots/foo.bar /path/to/folder/foo.bar ...
2
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1answer
444 views

Input a list of files & directories to be copied with ditto

I have a short list of files and directories of which I would like to make a flat copy of using ditto in a bash shell. There are approximately 8-10 files and/or directories that need to be copied. I ...