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.
0
votes
2answers
472 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 ...
3
votes
2answers
4k views
How to copy between two remote hosts using tar piped into scp 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 ...
8
votes
2answers
2k 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" ...
4
votes
3answers
947 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 ...
2
votes
1answer
799 views
Clear unused space with zeros (btrfs)
How to clear unused space with zeros ? (btrfs)
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" and ...
1
vote
3answers
476 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 ...
5
votes
3answers
393 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)
...
3
votes
2answers
498 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 ...
2
votes
3answers
2k 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
116 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 ...
0
votes
3answers
2k 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 ...
3
votes
3answers
109 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.
...
2
votes
2answers
563 views
How to run e2image to backup a remote CentOS server?
Our server is hosted out of the country, I just have SSH access. I want to take an image backup of my server. I found the e2image utility to take an online backup of that server, but when I run ...
6
votes
3answers
1k views
How to create a read-only snapshot in btrfs?
As far as I understand, the snapshots made by btrfs subvolume snapshot are writable by default and are visible at a certain path under the mountpoint of your btrfs volume.
How to setup the system so ...
3
votes
3answers
897 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 ...
6
votes
2answers
205 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)
...
1
vote
2answers
258 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.
7
votes
3answers
3k 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 ...
8
votes
1answer
2k views
How to create a read-only snapshot in LVM, and then rollback to it after some work?
What are the commands to use in LVM in case I want to:
create a read-only snapshot of a volume;
(do some experiments in the volume);
and then rollback the volume to the snapshot?
1
vote
1answer
239 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 ...
5
votes
2answers
594 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
votes
1answer
295 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 ...
2
votes
4answers
2k 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 ...
2
votes
2answers
132 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 ...
1
vote
2answers
2k 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"?
2
votes
1answer
2k 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.
...
4
votes
1answer
384 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 ...
3
votes
1answer
226 views
FLAC correctness using MD5 placed in STREAMINFO
I know from [Sources], that FLAC computes CRC and MD5.
What I am afraid that flac --test only does CRC test - as stated in man flac : same as -d except no decoded file is written .
How to check flac ...
1
vote
0answers
170 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 ...
0
votes
0answers
45 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 ...
3
votes
1answer
117 views
Need a little help with --remote-schema option for rdiff-backup
I'm running the following command:
rdiff-backup --remote-schema '%s' 'sudo /usr/bin/rdiff-backup --server \
--restrict-read-only /'::/etc /var/backups/hosts/derp
It's backing up /etc from ...
19
votes
9answers
866 views
How to keep track of changes in /etc/
I would like to keep track of changes in /etc/
Basically I'd like to know if a file was changed, by yum update or by a user and roll it back if I don't like the chage.
I thought of using a VCS like ...
1
vote
1answer
119 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 ...
2
votes
2answers
873 views
backup MSSQL database to a client's local disk over network
I'm trying to backup a MSSQL server from linux. I'm able to connect to the server using tsql (from the freetds project), and I'm even able to backup the database on the server using the backup ...
3
votes
0answers
352 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
votes
4answers
374 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 ...
2
votes
1answer
4k views
Bacula + bat on Ubuntu Maverick
Okay, so I have a goal, and I'm unsure of the best steps to take to get there.
Goal:
Set up a Linux VM in VirtualBox (Host: Windows Server 2008 R2)
Setup Bacula in a Linux environment
Get Bacula to ...
1
vote
1answer
67 views
Back up particular package and its dependencies
It may sound like a silly question, but I'm new to Linux and eager to know if there is any way to do this. Okay, my question is: can we take a backup of a particular package and its dependencies?
For ...
2
votes
1answer
237 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 ...
3
votes
1answer
1k 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
...
3
votes
1answer
240 views
Faking rsnapshot initial backup
I'm currently using plain and flat rsync to backup my files, meaning I have no incremental backups.
A few days ago I became aware of the existence of rsnapshot and after looking at the man page I ...
3
votes
1answer
863 views
Creating A Bootable Backup Copy Of System Drive
I'm in charge of a Linux fileserver at my workplace, and since this fileserver holds the company's accounting data, I've got to make sure that there are backups.
Right now, my main solution is based ...
3
votes
2answers
162 views
Backup selinux system running strict
I have a cron job that is backing up a SELinux system running in strict mode. The problem is that SELinux wants to deny access to to the backup script since it wants access to every single file on the ...
1
vote
1answer
90 views
Backup, without having to reinstall 3rd party programs?
Say I back up the / partition with cpio and the disk fails. Would I have to reinstall all third party programs if I used cpio to restore the / on a new disk? Or is backing / up enough to keep them ...
-2
votes
1answer
142 views
Creating a backup script involving screens and java? [closed]
Hi guys I use centOS 64bit 5.7 and I need to create a backup script
What I want it to do:
screen -r example
command into java
pause for x amount of seconds
exit screen
zip/rar a folder which and ...
2
votes
2answers
147 views
What don't I need to backup?
I'm trying to do a simple system backup (with cpio or tar), and I was looking for what I need to back up and found this question. The answer was basically, "it depends on what you're running on your ...
3
votes
3answers
260 views
Some basic questions about dd
I'm working on a system of how to back up partitions using dd and have been reading a lot about it. I have a few questions and assumptions that I would like to ask.
These may seem a little noob-ish, ...
1
vote
1answer
542 views
Backup Manager and Cron : CentOs and Ubuntu 11.10
I have two dedicated servers: one has CentOS, the other Ubuntu. I installed backup manager on both servers. But I have two different behaviors.
On CentOS:
The backup of my files is "every night". I ...
3
votes
1answer
2k views
How to take and restore backup with an LTO tape drive in RedHat?
I can take a backup with an IBM LTO tape drive in RedHat 5 using mt and tar, but I can't restore it. I can't see previous backup content. Whenever I try to take a backup, I think that the new backup ...
3
votes
3answers
9k views
How do I mount a WD MyBook World network drive in linux?
I have a WD MyBook World NAS on my home network. I currently use this for Time Machine backups for my Mac but I'd also like to use it as a backup location for my linux box which is running Ubuntu ...
