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.

learn more… | top users | synonyms (1)

2
votes
1answer
128 views

Is there a FUSE which permits transparently accessing incremental backups?

While creating incremental backups is relatively simple (and can be automated, e.g. via rdiff-backup), in order to access a specific state of a file one first has to manually restore the backup, which ...
3
votes
2answers
6k views

Create a tar archive split into blocks of a maximum size

I need to backup a fairly large directory, but I am limited by the size of individual files. I'd like to essentially create a tar.(gz|bz2) archive which is split into 200MB maximum archives. ...
2
votes
1answer
6k views

how to tell rsync to preserve time stamp on files when source tree has a mounted point

Related to this question Short description of the problem: When source tree has a mounted point inside it, then time stamps on files inside that mounted point when copied to target tree are not ...
1
vote
1answer
803 views

rsync command to backup home tree to another disk

I want to make sure I am using the correct rsync command on Linux. I do not want to run an rsync and end up losing data as I am new to Linux and I have no backup now. On Linux Mint, I want to backup ...
1
vote
0answers
838 views

How to backup KVM images? Is it possible to backup whole VM?

I need to backup all (9 VMs) my KVM VMs. I would like to backup them in the night for example once a week. For example VMware server and VMware server 2 used to have possibility to create live backups ...
2
votes
3answers
3k views

How to backup debian system?

I have VPS hosting with debian operating system. I would like to backup whole system time by time. Here is a lot of questions how to backup OS on local machine, but it's not what I need. I have just ...
5
votes
2answers
2k views

Scp doesn't work in cron

Yeah, I know it's classic. I've googled it all around, but still it doesn't work. I have the following script: #First go to SVN repo folder cd $svnrepos # Just make sure we have write access to ...
1
vote
1answer
156 views

About Clonezilla and how store the backup

I've never used Clonezilla before. When storing a backup, Clonezilla needs a free partition or free space? I mean, I have a disk for backups with only one partition. Do I have to create a partition ...
2
votes
2answers
113 views

Copying and expanding partitions

I currently have the following setup: 2TB HDD /dev/sda: /dev/sda1: (NTFS) Windows 7 Boot Partition: 100GB 1TB HDD /dev/sdb: /dev/sdb1: (EXT4) Linux General/Backup Partition - 1TB 256GB SSD ...
1
vote
1answer
230 views

tar -c Error Messages and Source Files?

During a tar archiving operation with tar -cvf archive.tar source does the resulting tar archive that reports a file changed as we read it error still contain "some version" of the source file that it ...
1
vote
0answers
30 views

Time Machine Server on Fedora [duplicate]

Possible Duplicate: How can I (and should I) use my Linux file server as a Time Machine backup server for my Macs? I was just wondering if anyone knew how to/or knew of a good guide to ...
2
votes
4answers
231 views

How to restore data atomically on a remote server?

I want to be able to backup and restore my home directory of a remote account. The command I use are: Backup ssh myuser@myuser.server.com "tar jcf - ." > backup.tar.bz2 Restore cat ...
3
votes
1answer
163 views

Run backup on HD plugged with systemd

When I plug a HD via USB, it should a) mount it b) run my backup script. What I currently have is backintime.service [Unit] Description="Runs backintime to backup." [Service] User=user ...
1
vote
2answers
173 views

How to monitor specific files in unix [duplicate]

Possible Duplicate: How to run a command when a directory’s contents are updated? Any one know how to monitor files in Unix. I want to take backup of that files when its modified and store ...
4
votes
2answers
294 views

light weight disk based backup solution

Currently I am using Dirvish to backup a handful remote machines, both Linux and Windows to local disks. But Dirvish hasn't seen any updates for many years and it has a couple of small annoyances ...
4
votes
3answers
1k views

Performing accurate snapshot and incremental backups to a remote server

I have a few Ubuntu (and potentially RHEL) servers I'd like to back up to a central backup server (via rsh/SSH). I'd like to do both snapshot and incremental backups. The goal is that if one of the ...
1
vote
1answer
294 views

How to let rsync additionally store an differential changelog in another directory?

I'm using rsync --link-dir to obtain daily snapshots with little space usage due to the hardlinking. It would however be nice to also have a directory that, while mirroring the original structure, ...
0
votes
2answers
182 views

Backup & restore from Linux to Windows while Linux is running

I have a lab with some Linux machines, some are Red Hat 5.1 machines installed on HPDL580 HW, and some are Linux installed on BLADE IBM machines. Also I have laptop computer with Windows XP. My ...
5
votes
1answer
334 views

How to merge multiple WebDAV accounts for backup?

I use davfs, aufs, rsync: sudo mount -t davfs -o uid=wd,gid=wd,dir_mode=777,rw https://wd1.wd.wd/ /mnt/webdav1 sudo mount -t davfs -o uid=wd,gid=wd,dir_mode=777,rw https://wd1.wd.wd/ /mnt/webdav2 ...
1
vote
2answers
601 views

Two exact copies of folder using FTP and command-line only

I'm looking for any solution that will allow me to emulate functionallity similar to Dropbox/rsync using only FTP protocol and command-line. The general problem is, that I have to run it on a very ...
3
votes
1answer
421 views

“tar --exclude-backups” does not exclude files with tilde at end

If I have the following directory: $ ls -a foo . .. a #a# a~ b b.bkp c .git .hg .svn and call: $ tar zcf foo-no-bkp.tar.gz --exclude-backups foo/ The resulting archive still has backup ...
1
vote
1answer
676 views

AutoMysqlBackup --lock-tables=false

I'm trying to use AutoMysqlBackup script to perform daily backups of my application. Unfortunately on the first try it didn't served me how I thought it would. I believe that the script has used the ...
0
votes
1answer
1k views

Got fatal error during xfer (Child exited prematurely)

I have a backup server which takes backup of other servers and in few days back the backup server started experiencing error and the not able to take back. I think the error log bellow could describe ...
2
votes
1answer
169 views

Backing Up to a Compressed Archive on Linux

How would you go about backing up just some files and subdirectories of a given directory to a compressed archive so that the tree structure could then easily be recreated from that archive. ...
0
votes
1answer
98 views

Creating the first backup

I heard that rsync isn't the best one when creating the first backup in terms of performance. Instead it is the best for the later backups. So I wonder what are some better commands for creating the ...
2
votes
1answer
174 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
votes
1answer
968 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
votes
1answer
409 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. ...
7
votes
3answers
1k 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
votes
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 ...
2
votes
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
votes
1answer
278 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? ...
5
votes
2answers
25k 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
vote
1answer
425 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
vote
1answer
110 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
votes
1answer
341 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
votes
2answers
301 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 ...
2
votes
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 ...
4
votes
4answers
1k 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
votes
3answers
11k 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
votes
3answers
818 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, ...
1
vote
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 ...
1
vote
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 ...
4
votes
4answers
3k 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 ...
15
votes
4answers
9k 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
1k 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
votes
2answers
309 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 ...
5
votes
3answers
2k 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 ...
6
votes
5answers
9k 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
votes
1answer
183 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 ...