Ubuntu :: Dd - Device Copy.... Low File System Space?
Mar 17, 2011
So I wanted to copy a copy-prod disk and decided to try dd after reading some information about it. after running dd for about a minute, I got a warning that I was low on disk space. I stopped dd and found I had only 200 MB left of 200 GB free space (originally having over 220 free). I deleted the 1/2 finished backups but cannot find the data which was written to the drive. It is hard to think that that much data could be written with my slow pc in under one minute.here are the commands I performed if that helps locate the data:
dd if=/dev/cdrom of=/mnt/disk/home/mark/pccheck.iso
dd if=/dev/cdrom of=/home/pccheck.iso
sudo dd if=/dev/cdrom of=/home/pccheck2.iso
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Apr 3, 2011
In System Monitor, on the File Systems tab, the "Total", "Available" and "Used" columns don't seem to add up, and the "Used" percentage doesn't seem correct either.
My config:
/dev/sda1 = 80 GB SSD drive, / partition.
/dev/sdb1 = 50 GB FAT32 partition of an external 500 GB USB hard disk.
/dev/sdb2 = remainder of the 500 GB USB hard disk encrypted using luks.
Screenshot: The /dev/sda1 figures don't really add up well, but they're close at least (how you get "50% Used" from any of those figures I don't know!).
However, for /dev/sdb2, they're miles off:
"Free" = 146.2 GiB
"Total" = 409.7 GiB
"Available" = 125.4 GiB
"Used" = 263.5 GiB
[Code]...
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Aug 17, 2015
There is this bug in the latest version of Ubuntu, which is also Jessie, which is:
Can't copy a file from SMB share to the local file system: Software caused connection abort
The problem, apparently, is that newer versions of Samba hit servers with multiple requests at the same time, and for some reason the Zyxel and Iomega boxes can't handle this. The best solution they've come up with is to modify the smb.conf file on your server to include this setting: "max mux = 1".
Here is the reference material on this bug: [URL] ....
People who develop samba have fixed it in the latest version but neither the ubuntu nor Debian have released the fixed version of nautilus, as of yet. Here, is the reference: [URL] ....
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Jul 5, 2010
I am using windows xp and debian linux.In windows xp I am having around 25 gb offree memory but in linux if i copy anything it says enough space memory to copy
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Feb 24, 2010
i just installed Fedora 12 (via vbox 3.1.4). stupidly i started with 8G and, of course, ran out of space on the / filesystem. i added 8G to the drive which now shows as 17G.based on the below outputs, it looks like i have 8G more space available on the drive. based on reading other posts it looks like i need to use parted to increase the size but not sure how to do that.
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May 8, 2011
i want to add space to my file system, i want to slice some space from my home directory coz it has a lot of space...i am just adding applications, but im runnint ofspace....what shall i do, without reformating or reinstalling my ubuntu 10.10?
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Nov 20, 2010
I need to copy a file from my desktop to a system folder but unsure how. It needs to go to the "etc/X11" folder
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Jan 2, 2010
I've been having a problem updating for the last few days. Everytime I try "yum update" it downloads the packages I need and when it tries to install them it stops because of this errors:Quote:
installing package kernel-2.6.31.9-174.fc12.x86_64 needs 5MB on the /boot filesystem
installing package libuser-devel-0.56.13-1.fc12.x86_64 needs 5MB on the /boot filesystem
installing package compiz-0.8.2-21.fc12.x86_64 needs 5MB on the /boot filesystem
[code]...
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Apr 8, 2010
i just installed ubuntu 9.10 onto my windows vista laptop. i ran ubuntu update manager but it tells me i'm low on disk space. system monitor tells me that i still have 50.2 GB of space but the problem is that i only have 68 MB left in my / File System. how can i increase disk space in / File System?
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Jun 27, 2011
I've been trying to install ubuntu 11.04 64 bit on a partition next o windows 7 64 bit.When I use the default option (no matter how large I make the partition) I get the error message that not enough space could be created. I read this could e solved by defragmenting the hard drive which I did, but the problem persists.I next tried to partition manually but go the error message that there was "No root file system is de or something similar
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Sep 7, 2010
I have a VMWARE machine, I have extended it from 20GB to 30GB for Linux box.How do I take the additional 10GB that it has and allocate it to -dev-mapper-VolGroup00-LogVol00 ?That way I can use the 10GB of available space in that file system.
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Apr 7, 2010
I am trying to get the dd command to successfully copy a disk image to a remote system.Right now I am testing out the syntax by trying to copy the /dev/sda1 directory of the subject computer. The command syntax that I am using is the following:Code:dd if=/dev/sda1 ibs=4096 conv=notrunc,noerror | (ssh 132.183.12.128 of=/roarchive/test obs=4096)The user account running this command is root, and the account does have key-based authentication between the source and destination computers. The command does not return any error messages, but when I check the directory on the destination system, the expected output is not there.
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Nov 18, 2010
My fedora keeps popping up this message of Low disk space..the volume file system roots has only 200 MB remaining.Then it came to 150 MB and now to 100MB.I am using fedora 13 on vmware .I set my vmware hard disk to 20 GB... my file system is showing 100 MB free while my home has 12.3GB free. Is there a way increase the size of my file system. similar problem has been in ubuntu [URL] but I dont know what to do with fedora.Also can some one tell me the way I can increase the size of usr folder .so that I can get some more softwares.Right now I am just stuck.
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Dec 29, 2010
We have recently built some RAC (OS:RHEL55) servers and after the Oracle guys have installed their application, somehow the directory / is using the maximum space. I contacted the Oracle team & they say that their RAC installation doesn't create any files in the / directory. This is the o/p of '/' directory file system:
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/datavg-vol2 498M 382M 62M 88% /
Also, when I checked the file sizes, I found that the following files were taking more space:
/etc/selinux/targeted/modules/active/
-rw------ 1 root root 17M Nov1 base.linked
[code].....
I don't know what these files are doing there, when I did a cat and cheked, I found the files containing this data:
nf_tre--
stem_dbusd_var_run_t...and some stuff like this Unable to decide whether or not to remove these files. Also, is there any way to find out what files are taking more space and whether they can be deleted or not? in order to free up some space in the / direcoty. As there are 10 RACs that we've build, I got to do something to fix this for all of the 10 servers.
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Apr 7, 2009
I currently have a server with the default VolGroup00 that contains logical volumes for the root file system and swap using logical volumes LogVol00 (root) and LogVol01 (swap.) I need to take space from LogVol00 and move it to LogVol01. I have found documentation for increasing the swap, and the resizing the logical volumes. However in the documentation and the man pages it says that I have to reduce the size of teh file system on the logical volume I am going to shrink. I have found documentation resizing the logical volumes but not the file systems.
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Jul 7, 2011
I would like to copy the entire file system hierarchy from one drive to another..i.e contents of each directory as well as regular files in Linux platform. Would be gratefull to know the best way to do that with possibly Linuxes in-built functions. The file system is a ext family.
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Dec 7, 2009
I have decided that my partition table does not meet my needs Barrymore, and I want to shrink the "/" partition by 80GB, and then create another file system on that space. I did some research on-line, and I'm not sure which way is the easiest and more secure way to perform the change with out putting the "/" file system on risk.
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Mar 22, 2009
I hv a text file in redhat linux platform and i need to copy this file to windows platform running on the same system. Is there any command for this.
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Feb 24, 2010
There is a centralized FTP server which are accessed by clients to develop some web development project and to achieve this the clients are using ftp service. The problem is when they are trying to copy any files and directories they are getting the following error: "Message reported from the file system: FTP copy not supported,use move instead"
I've checked all the permissions and they are all OK. I don't know why this is happening. they can create and move files and folders but can't copy files and folders.
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Jan 14, 2011
How do I go about mounting a device if I don't know the file system type (e.g ext3, NTFS)?
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Aug 15, 2010
I faced a problem while installing ubuntu 10.04 on mylaptop;i downloaded the ubuntu from ubuntu official site. Problem: message coming that no media device is found for live file system. My Laptop configuration : 2.2 ghz core 2 duo processor, 320gb hdd in this matter and can let me know me how can i install ubuntu 10.04 on my laptop.
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Jan 20, 2011
cp: writing `/tmp/tmpX2KZDc/system.image': No space left on device However, when I right-click on properties, I see it has 51 items, totalling only 130.5 KB!this is a dual boot system with Win XP and Ubuntu 10.10 (~58Gb partition)Quote:
anil@anil-HP-EliteBook-8440p:/tmp$ mount
/dev/sda5 on / type ext4 (rw,errors=remount-ro,commit=0)
proc on /proc type proc (rw,noexec,nosuid,nodev)
[code]...
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Jun 19, 2010
Found the below from RedHat Knowledgebase
The Completely Fair Queuing (cfq) scheduler in Red Hat Enterprise Linux 5appears to have worse I/O read performance than in version 4. It appears as though the Completely Fair Queuing I/O scheduler (cfq) has a regression and thus exhibits reduced read-side throughput which can affect performance for both local and NFS mounted file systems.
One way to mitigate this is to set the cfq's slice_idle parameter to zero. To change this value, execute the following command echo 0 > slice_idle in the /sys/block directory appropriate for your situation, as shown below:
echo 0 > /sys/block/hda/queue/iosched/slice_idle
We are using NFS file systems in RHEL 5.3. I would like to know how to find which /dev/Device is being used by the NFS file systems, so that I could try setting the slice_idle to '0' to see if there is any difference in performance? In /etc/fstab I only see the actual NAS volumes for the NFS file systems.
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Jan 4, 2011
df -h [URL] I did the following command to find everything is in /usr or /var, then tracked it down to /usr/lib and /usr/share as the main offenders, but out of all the directories none are more than 1mb or so.
du -sh /* | sort -gr | head -n 5
I tried to uninstall firefox, which is what got me in this mess in the first place, the log claims it will remove ~240 mb but failes on a "E: Write error - write (28 No space left on device)" [URL] If I could juggle something onto an external hard drive so I can uninstall firefox I would be out of the wood. Failing that I believe a new install is in order.
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Jul 20, 2009
The server comes up after rebooting and after setting the hostname it starts setting up logical volume management. It says that 2 logical volume(s) in volume group "VolGroupOO" now active But then it starts to check the file system and errors with fsck.ext3: Device or resource busy while trying to open /dev/sdb1 [failed]
***An error occured during the file system check
***Droppping you to a shell, the system will reboot when you leave the shell
Give root password for maintenace
After I log in with the root I get the message mesg: error tty device is not owned by group 'tty' Can the forum tell me how to troubleshoot this issue so I can boot back up again? I have 2 harddrives in this server and only 1 drive was detected when I first installed CentOS. The error first appeared when I mounted the 2nd drive at the mount point /UserGeneratedData. drive was formatted with ext3 before mounting and did not have any data on it I don't want any software RAID if thats what seems to be going on with "VolGroup00"
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Mar 1, 2011
How to copy a Read-Only file in Linux and make the copy writable with a single cp command in Linux (Ubuntu 10.04)? The --no-preserve and --preserve seemed to be good candidates, except that they should "and" the mode flags, while what I am looking for is something that will "or" them (add +w mode).
More details: I have to import a repository from GIT to Perforce. I want that all Perforce depot files are Read-Only (that is how Perforce was designed), while all other files that were derived/copied from depot files are writable. Currently if a Makefile tries to copy a Read-Only file then the derived file will also be Read-only. This leads to build-errors when cp tries to overwrite Read-Only file second time. Of course the --force is a workaround here but then the derived file is also Read-Only. Also I do not want to mess with "chmod" after each "cp" command - I will do that only as the last resort.
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Dec 11, 2010
I need to add more space to a Ubuntu install, however it's on the right and has no space to add. My plan is to copy it to the empty space on the left and remove the original in order to use the rest of the space that used to be windows. I'm not to smart about partitions however I believe this is the way to do it?
The problem is when I attempt to copy the roughly 10gig partition into the 68ish gig space I get an error telling me that there isn't enough room. Not really sure what the issue here is, I took some screen shots of it to possibly help. I couldn't save the error message because I was on the live cd so I took a pic of that as well. Having troubles attaching images to this post so I'll just upload and add the urls for now....
Code:
http://img547.imageshack.us/img547/3343/gparted1.png
http://img46.imageshack.us/img46/9638/gparted2.png
http://img602.imageshack.us/img602/1025/gparted3.png
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Dec 1, 2010
When i want copy a file or folder in some system folder like sbin,Etc.show me error about privilage but when I'm in console i use su command for become admin and i can copy my file or folder.in other operation system like windows user can copy anything,i want know for direct copy my folder in linux without console what should i do? i must join my user name in root group?
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May 2, 2011
i'm looking for a media player (or even better a plugin for Rhythmbox) that can send files from the playlist directly to a mounted usb device (not an ipod, an android phone's sd card)
used a plugin in foobar on windows, is there anything like that for rhythmbox?
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Feb 9, 2010
I have recently purchased an external hard drive in order to backup my home partition. In my PC I have a "1.5T" drive with several partitions on it, containing OSes and the home partition. The home partition is 1.3T according to df, the external drive contains one partition that spans the entire disk,df reports it as 1.4T in size. Both partitions are ext3. When I use rsync to copy files from the home partition to the external partition, the external disk becomes full, despite the destination - supposedly - being larger than the source. I don't understand why copying files from one partition to a slightly bigger partition should need more space than on the source partition. Does anyone know what is happening ?
Details : I created the partition on the external drive with gparted; gparted reported it the already have several gigabytes in used space immediately after the partitions creation - I thought at the time that this must be normal. The home partition contains many files of all sorts, including lots of big audio and video files. If you are wondering, for all my important files this external disk is only secondary backup, as they are also backed up to the "internet".
These are the mount points :
/mnt/tmp/ : home partition, /dev/sdb6
/mnt/external/ : external partition, /dev/sdc1
I used rsync to copy the files, I know there are more efficient ways to do this, but I wanted to use the same command that I will subsequently run to sync the backup.
rsync -av --progress --stats --recursive --perms --links --delete /mnt/tmp/ /mnt/external/
Next I tried adding the --sparse switch, as I was wondering if the problem may come form sparse files. I don't know however if rsync would go back and shrink the sparse file by just adding the switch and executing the command. I also added --one-file-system, for good measure. Here is what I ran next :
rsync -av --progress --stats --sparse --one-file-system --recursive --perms --links --delete /mnt/tmp/ /mnt/external/
I tried an fsck on the home partition :
fsck -f /dev/sdb6
This is the output from the last rsync :
rsync: writefd_unbuffered failed to write 4 bytes to socket [sender]: Broken pipe (32)
rsync: write failed on "abcd.avi": No space left on device (28)
rsync error: error in file IO (code 11) at receiver.c(302) [receiver=3.0.6]
[code]....
Looking at the destination after a partial copy seems to indicate that the problem is not symbolic links being "expanded". I have not checked the source filesystem for sparse files, nor the destination to see if these files could be larger there, as this does not seem trivial.
Here is some additional info :
$ df /mnt/tmp/
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdb6 1415342836 1414173740 369096 100% /mnt/tmp
[code]....
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