Debian :: Rsync And Different File Systems ?
Oct 21, 2010
I have 2 different mounts. One points to a local windows share(NTFS ->Samba) and the other one points to a PPTP VPN connection sharing(I belive that is NTFS too). I use "cifs" scheme in my fstab to mount these. And I use my Debian box to copy between these 2 mounts. I have started using Rsync for that purpose, I think that it works fine for now. My main problem is that it looks like Rsync cannot figure out if the files are same or not in source and target folders when I use these mounts. Most of the time Rsync copies the same files and folders over and over again even though those files and folders are on the target.
I am wondering if there is a way to make this scheme work? Being on a Vpn connection(slow) a Windows box, Rsync could have save a lot of my time if it could have recognized the files and folders that are same on both ends
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May 20, 2011
I have an OpenBSD and a FreeBSD system and a mac. I also have a Ubuntu server. What i would like to do is back up all these systems to an external hard-drive using rsync when the external usb disk is connected to my Ubuntu box.If i format the external usb disk with cfdisk and the create a non-bootable ext3 file system on this external disk and create and put all the necessary public keys on the Linux box then from the BSD's or the mac issue the command:
Code: #rsync --progress -avhe ssh --delete / user@ubuntuBox:/usb/disk/path/dir/ Will this back up the entire systems so that they can be restored in the event of an emergency? I should store each OS just in a separate disk file of the external usb drive each time right?? Because i would rather not have to format the external usb drive for each different OS. Would this work? and would the restoration command for these BSD's be:
Code:
rsync -avze ssh UbuntuBox:/usb/disk/path / I just need to know the basics. I'm sure given that i'll be able to automate the process. I don't want to clone the disks for forensics. I just want to have a way of restoring to a clean OS. This is the most basic question:All the howto's never mention whether or not you have to have an rsync server running on the machine your backing up to. So do you just push or pull from one end of the connection only or do you have to have a client at one end and a server at the other, as is traditional?
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May 20, 2011
I have an OpenBSD and a FreeBSD system and a mac. I also have a Linux server. What i would like to do is back up all these systems to an external hard-drive using rsync when the external usb disk is connected to my linux box.If i format the external usb disk with cfdisk and the create a non-bootable ext3 file system on this external disk and create and put all the necessary public keys on the Linux box then from the BSD's or the mac issue the command:
Code:
Will this back up the entire systems so that they can be restored in the event of an emergency? I should store each OS just in a separate disk file of the external usb drive each time right? Because i would rather not have to format the external usb drive for each different OS. Would this work? and would the restoration command for these BSD's be:
Code:
I just need to know the basics. I'm sure given that i'll be able to automate the process. I don't want to clone the disks for forensics. I just want to have a way of restoring to a clean OS. This is the most basic question:All the howto's never mention whether or not you have to have an rsync server running on the machine your backing up to. So do you just push or pull from one end of the connection only or do you have to have a client at one end and a server at the other, as is traditional?
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Dec 1, 2014
I'm trying to install Debian Jessie beta2 on a UEFI laptop. The installation worked just fine before with setting in manual partitioning an EFI system partition and a root partition.But when I try to partition with root as an encrypted volume I get this error when I wanna write changes to disk:" the attempt to mount a file system with type vfat in scsi1 partition sda at /boot/efi failed"When I choose resume partitioning the installer then freezes at "detect file systems".
Because my harddrive needs specific alignment I've made beforehand in gdisk:EFI System Partition of 100mib at /dev/sda1/boot partition of 512mib at /dev/sda2/ (because I expect the installer to want a /boot too for an encrypted device)rest of harddrive reserved for root at /dev/sda3
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Jan 21, 2010
Last year I was looking into fault-tolerant distributed file systems and I recall one kernel-based system that required a physical partition on each machine in the cluster, but would treat it as a single volume - ie. a write on one server would appear on the disk on all the servers.Unfortunately I didn't bookmark the specific system I was looking at, and now a year later I can't remember the details.What I don't want is NFS - a single file server with a file system mounted on various machines. What I do want is mirroring - one disk shared among multiple servers, so that if one server dies, it doesn't make any difference to the rest of them.
A bit of investigation turned up Red Hat's GFS, which kind of looks like what I want, but looks more and more like an NFS model to me. I was wondering what everyone's opinion of the various options out there were.
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Jan 29, 2011
How to get the permissions of any file systems
---------------------------------------------------
what does it mean?
"permission denied while opening filesystem"
through commands can we give/get permissions of file systems
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May 26, 2010
I have fedora12 on two pc's, i want to share some files between them which i was not able to do with nfs, so let me know the whole procedure to do that n also let me know where my shared files will be visible
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Jan 31, 2011
during the boot process mounting other file systems takes a while. Although it ends up resulting [OK] it was not like this before and it used to be was very fast. I took a look at /etc/fstab file which is posted below, and suspected that devpts is the problem. So I commented it out and reboot, but it wasn't helpful.
[Code]...
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Jun 22, 2011
After an update recently I noticed that my process count jumped up quite a bit. Somehow it doesn't seem related (it was an apt update I believe), but I'll just throw it out there. All of the extra processes seem to be related to XFS and JFS file system kernel processes, but none of my file systems use XFS nor JFS, just EXT3 & EXT4. Is there any safe/easy way to kill off these processes and prevent them from re-spawning? I don't find having irrelevant idle processes to be beneficial nor efficient. It's using Ubuntu 10.04 64-bit. Only active file systems are EXT4 and EXT3.
[Code]...
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Nov 22, 2010
and also I need to find answers for following two questions.How to find mountable devices and their device files in Linux?How can I allow a regular user to mount a device in Linux?
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Oct 5, 2010
I'm familiar with the software and hierarchy of the mount command but I can't find any info on why it is needed or preferred. What are the physical aspects of it? What is the burden of having files accessible all the time?
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Jul 23, 2009
I was wondering if it was possible to hide the File Systems from a user. So when then browse through folders or choose to save something the default folder is their "home" folder. I am using SAM Linux distribution and don't want my users to be able to screw anything up! I use thunar as my file manager and was just wondering if it is possible?
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Apr 29, 2011
I have to move files between two file systems /inst and /inst2.When I perform 'cp -a /inst /inst2' it copies everything even hidden files and preserves access permissions.But when I perform 'mv /inst /inst2' it also preserves access perms and moves everything besides hidden files.Questions :hy is so ?What tool to use when moving file systems from one fs to another (rsync) ?
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Jun 19, 2010
I have 3 linux systems configured for running applications in each, named system1, system2 and system3. I have around 100 GB of space in system3 under /usr but not much being used. In System1 very less space is there but mostly hits coming here and need to have proper backup, as the system1 is quite old and not planned partitons properly. So I want to use a disk having more space for backup requirements.
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Apr 30, 2011
We have upgraded CentOS release 5.6 (Final) with 2.6.18-238.9.1.el5 kernel. After the reboot all configuration files under /etc became READONLY. my file system's still in rw mode.code...
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Jan 1, 2010
This post is not to ask for help, but rather to document my recent effort to downgrade my ext4 file systems to ext3 file systems. I don't know if it'll help anyone, but here it is anyway, fwiw.I am running ubuntu 9.10 on an older Dell GX-270, and had formatted my partitions with ext4 file systems. I began to notice partimage wasn't backing up my ext4 file systems and I decided to downgrade to ext3 file systems.My system has one 160GB drive and one 500GB drive. I also have an external usb2 500GB drive./home is on the internal 500GB drive. To convert it, I mounted an ntfs file system on the external drive, created a container file, put a file system on it, and mounted the container as a linux file system.
The backup was done done via rsync. rsync makes things really easy. It understands uids, gids, file permissions, and all kinds of links. That's one reason I created the container file on my external drive. NTFS doesn't understand uids gids, linux file permissions, or linux style links.
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Mar 23, 2011
I have more than 60 ubuntu systems in my network. I want to copy files from one system to other ubuntu systems. All IP addresses are listed in a text file. So what command can I use to complete the task?
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Sep 29, 2010
iv been looking around at the different Linux systems particularity the smaller ones such as DSL, Slax and Puppy Linux. However i need a Linux distribution that doesn't have a GUI desktop environment just the plain old terminal to work on. The system would have to be able to boot from a USB drive also. If anyone knows a systems that fits those requirements or something else related please post. Also what file system is best for USB drives for booting systems?
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Jan 14, 2010
We recently had an issue with "cat /proc/mount" telling us that a CIFS file system was mounted, even though the mount was not working correctly. So we're not sure if we can trust linux to report malfunctioning mounts, so we're planning on adding a specific file on the mounted file system, and verify the mount by reading this file from the client side (linux). If linux fails to read it, we know that the mount have failed. But before we go ahead doing this I thought I'd just hear how others are doing this sort of thing - how do you make sure that mount points are up and working?
- kenneho
EDIT: I just saw that I've posted in the security area, not in the server area. How do I move it?
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Oct 5, 2010
after reading a lot I was finally able to run the upgrade interface (no more root errors) but I get a new error:"You need mor espace on the following file systems:346M on On / I have 760mb free. I dont know what else to do to install, I though I just needed 250mb to upgrade. Post added at 08:37 PM CDT Previous post was at 07:20 PM CDT Well after unistalling a lot of apps I managed to free 900mb in total.I dont know why my / is so full, I arranged a 9gb for it, and apparently I need more space, Im not using it more than sharing and downloading files, some hosting (nothing right now). How can I now what is getting so much space? Or maybe is the hole update process, from 8 to 11 and now from 11 to 13...
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Aug 13, 2010
What limits a file to have some maximum size depending on the Operating System? I do not exactly understand this. If you have the storage space, what else can be the limitation? You should be able to store as much data as you want the way you want (even in a single file) unless you run out of storage space.
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Apr 10, 2011
One of the good points of linux is that is easy to customize the partitioning scheme of the disk and put each directory (/home, /var, etc) in diferent partitions and/or diferent disk. Then we can use diferen file system/configurations for each of them for make them better. xamples:
noatime is a mount option to not write access time on the files. data=writeback is an option to layz write metadata on new files. ext3/4 has journaling that make the partition more secure in case of a crash. bigger blocks make the partition waste more space, but make it faster to read and may become more fragmented. (not sure) Then: What are the best filesystem/configurations for each directory? Note: given the answer of Patches, will only discuss /, /home and /var only.
/var -> It's modified constantly, it write logs, cache, temporal, etc.
/home -> stores important files.
/-> stores everything else (/etc and /usr should be here)
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Apr 28, 2011
Back in the old days of PC-DOS 3.1, computers are much simpler than today's. I can learn a lot of how File System works with tools like PCTools, Norton Disk Doctor, and [URL]. Have been working exclusive in corporate database application area for over a decade, my knowledge of how these stuff work is diminishing. Standard-clean OS (Windows, Linux) installation is all I can do now. And it starts to cause me many data-loss troubles, when I have to perform something that I don't have much insight, such as install and remove peer linux os or move and resize partitions.
I'm looking for books, web resources, or communities where I can educate myself on how various file system works, for which I can have in-depth answer to questions such as:
How to remove ubuntu and grub2 ? (I recently did that, but with a lot of frustration when I was not really sure what I was doing and confront with some scary error message like "Missing BootMgr" What kind of disk-partitioning operation can be performed non-destructively, and why ? What is Active partition ? Primary Parition ? Extended Partition ? How it stored on the disk. There are many free partitioning tools out there, which one is safe to used ? NTFS, Ext3, Ext4, .. What the differences ? How to choose it wisely.
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Aug 1, 2010
so here's what i want to do. I have a harddrive with Ubuntu 10.04 on it, the biggest partition is a 242gb ext3 partition. I want to format a part of that to FAT, without loosing any data from the hard drive.Is this possible?
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Mar 12, 2011
I have noticed the (understandable) tendency of new Linux users to think about disk drives in the 'Windows way'; their first thought is to exchange a new drive for an existing one, rather than combine both drives for a larger 'file system'.
There are times when replacing one drive with another is indeed the correct action (aging drive, failing drive, slow drive, etc). But in other cases it may be preferable to use the inherent strength of the fstab (file system table) file to combine physical drives to become a larger 'file system'.
Lets first look at a user with an 8 gig netbook who is running out of space. Rather than replace the 8 gig flash drive with a 32 gig device, the old and new devices can be combined to yield a 40 gig 'file system':
This same principle can be applied to a user with a computer using an 80 gig hard drive, and who 'adds' a new 320 gig drive instead of replacing the 80 gig drive with the 320 gig drive:
This same principle can also be applied to building a massive 'file system' without the requirement of using RAID:
The above 12 terabyte system can be built using a basic motherboard with four open SATA ports and four 3tb hard drives. No server based equipment is needed; no raid hardware or software is required. This is just something that Linux does (and does very well).
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Jul 4, 2011
I'm trying to install the 32 bit ubmbuntu 11.04 on my pc, and the installation freezes at the 'Detecting file systems' message. i have tried installing on a pc that had windows xp, and i also tried a clean install on a formtted hard drive, and i still get the same problem.
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Mar 4, 2010
I restore tape backup on my Linux server. At the time of booting the server it cannot able to read the filesystems.
I am getting the following message,
Code: Your system appears to have shutdown uncleanly
Forcing file system integrity check due to default setting
Checking root filesystem
fsch.ext3: file system has unsupported features (S) (/)
e2fsck: Get a never version of e2fsck! (FAILED)
*** An error occurred during the file system check.
*** Dropping you to a shell; the system will reboot
*** when you leave the shell.
Give root password for maintenance (or type Control-D to continue):
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Jan 16, 2011
It seems that the SCO divvy (multipliable file systems in 1 partitions) is the problemSo I am looking for a Linux patch or solution? Note: I no longer have the SCO disks.
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Jul 5, 2010
I'm interesting in knowing what processes could be altered to improve performance and functionality on my system. And which process may be the best one to alter
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Dec 16, 2009
I am still puzzled by IT guru who still install a server version of Linux using the default partition system. I am curious about what the IT guys in this forum think about this, even when the server is part of a cluster.
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