General :: OS Overwrite Unmounted Data?
Feb 22, 2011
I have a Debian OS installed (6.0), installed on a single partition, which was running out of space. So I copied all the data in /home to a spare partition, then edited fstab to mount this new partition as /home.
This works fine. But now of course I have the /home data both on the new partition (the one that is now being mounted and used), and also still on the original partition, though this directory is no longer mounted by the OS, so I can't directly 'get at' the data to delete it.
I could easily get into the partition from another OS and delete the unneeded /home data of course but I was just wondering; as this data is no longer 'seen' by the OS, will it be overwritten automatically by the OS when it needs more space, as it does with data that has been deleted from the filesystem, or would it be reserved somehow, still using up space?
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Jun 3, 2010
Ubuntu 9.10 64bit. Acer Laptop
Using ubuntu 9.10 cd to access laptops hard drive.
foun readme file in /media/disk/mark
opened with openoffice. THIS DIRECTORY HAS BEEN UNMOUNTED TO PROTECT YOUR DATA.
From the graphical desktop, click on: "Access Your Private Data"
or
From the command line, run: $ ecryptfs-mount-private
So I tried a couple of ways...
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Apr 23, 2011
I have a Pentium 4 HP laptop with Linux only OS, Xubuntu 10.04 LTS
I hadn't powered this one up in a long time and when I did, of course, the Update Manager informed me there were a LOT of updates (around 400 files) and of course I said OK.
It never quite completes, giving me an error message. Apparently two different packages are trying to over write each other's data.
The two packages that fail to update are
kdelib5-data and gnome-settings-daemon
and I really don't know what to do about it.
although isn't kde one desktop environment and gnome another? And Xfce yet a third?
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Jan 23, 2010
I'm trying to connect to the VPN of my employer; after fix various minor issues I reach this point in which the DNS entries and the default gateway of the VPN are overwritten with the values of the eth0 device that appears by default. Therefore the vpn is not useful.
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Feb 14, 2011
I had issues on my last install , I couldn't boot into it cause I accidentally uninstalled python 2.6 and everything it was attached to. So I reinstalled on a separate hard drive, I can see my other file system from the media folder but the only thing in my home dir is these 2 files 1 read me that says
PHP Code:
THIS DIRECTORY HAS BEEN UNMOUNTED TO PROTECT YOUR DATA.
From the graphical desktop, click on:
or
From the command line, run:
And then this file
Access-Your-Private-Data.desktop
But when I click it and try to run it I get this error
PHP Code:
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Jul 20, 2010
I have two volumes, both with 800GB total used on them. lets call them /vol1 and /vol2. /vol2 is just a cron'd rsync'd copy of a folder on /vol1 which is a live share for many users.If I temporarily suspend the cronjob doing the rsync's from /vol1 to /vol2, is it safe to unmount and e2fsck /vol2, then remount it somehow?
Both /vol1 and /vol2 say the filesystem state is not clean when i do a tune2fs -l on them both. According to tune2fs both will check themselves upon restart, but if I can do /vol2 since it isn't the live data beforehand, that will cut my downtime in half the next time i restart the server.But I also wonder that if I can do this, then i remount /vol2, will the "not clean"-ness of /vol1 just be rsync'd back over to /vol2 the next time the rsync runs?
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Jul 5, 2011
I accidentally unmounted filesystems using umount -a command.How to recover from this.
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Jul 22, 2011
How can I see all the physical hard drives on my Ubuntu system — regardless of whether they're mounted — as well as their partition info, sizes, &c.? I have three physical drives, but only one seems to be mounted. I'd like to mount the other ones too, as I have some data on them.
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Jul 15, 2011
I have been setting up my laptop as a dual boot with Win7 (yuckkk!) and Ubunutu 11.04. My HP Pavilion dm4 came with 4 primary partitions used by Windows! (Again, yuckkk!) I got rid of Windows_recover partition (I don't remember the exact name) converted that primary partition to an extended partition and then installed Ubuntu in virtual partitions. All that works.What I don't like is that the partition HP_TOOLS shows up in Nautilus, and if you click on it, it self-mounts and makes that partition accessible.
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Jan 10, 2010
I'm using some software that using mount point such as truecrypt. I also mount shared folder on other machine (fileserver) and publish it using ftp. The problem is when the truecrypt volume dismounted or the shared folder mount point loosing connection to the fileserver, user can write to the mount point without knowing that they actually not writing to the truecrypt volume or to the shared folder.
My question is, when sometime the server reboot and truecrypt volume is not mounted yet, how to prevent write to the mount point? I dont run truecrypt mount automatically for security reason.Some question for shared folder, if fileserver restart and the shared folder mount point got disconnected, how to prevent write to the mount point?
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Feb 7, 2010
I know there are many threads about recovering damaged superblocks. I've spent 3 evenings reading them and trying what they suggest. Invariably the commands do nothing except to report bad or missing superblocks. I've removed the physical disk from the machine and am working with a dd image file (/mnt/image). I can mount what used to be hdc1 and read its files with no problem. I'm trying to recover partions hdc6 and hdc7.$ mmls /mnt/image -b
DOS Partition Table
Offset Sector: 0
Units are in 512-byte sectors
[code]....
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Jun 3, 2010
I've searched high and low, and can't figure this one out. I have a older Olympus Camera (2001 or so). When I plug in the USB connection, I get the following log output:
$ dmesg | grep sd
[20047.625076] sd 21:0:0:0: Attached scsi generic sg7 type 0
[20047.627922] sd 21:0:0:0: [sdg] Attached SCSI removable disk
Secondly, the drive is not mounted in the FS, but when I run gphoto2 I get the following error:
$ gphoto2 --list-config
*** Error ***
An error occurred in the io-library ('Could not lock the device'): Camera is already in use.
*** Error (-60: 'Could not lock the device') ***
What command will unmount the drive. For example in Nautilus, I can right click and select "Safely Remove Device". After doing that, the /dev/sg7 and /dev/sdg devices are removed.
The output of gphoto2 is then:
# gphoto2 --list-config
/Camera Configuration/Picture Settings/resolution
/Camera Configuration/Picture Settings/shutter
/Camera Configuration/Picture Settings/aperture
/Camera Configuration/Picture Settings/color
/Camera Configuration/Picture Settings/flash
/Camera Configuration/Picture Settings/whitebalance
/Camera Configuration/Picture Settings/focus-mode
/Camera Configuration/Picture Settings/focus-pos
/Camera Configuration/Picture Settings/exp
/Camera Configuration/Picture Settings/exp-meter
/Camera Configuration/Picture Settings/zoom
/Camera Configuration/Picture Settings/dzoom
/Camera Configuration/Picture Settings/iso
/Camera Configuration/Camera Settings/date-time
/Camera Configuration/Camera Settings/lcd-mode
/Camera Configuration/Camera Settings/lcd-brightness
/Camera Configuration/Camera Settings/lcd-auto-shutoff
/Camera Configuration/Camera Settings/camera-power-save
/Camera Configuration/Camera Settings/host-power-save
/Camera Configuration/Camera Settings/timefmt
Some things I've tried already are sdparm and sg3_utils, however I am unfamiliar with them, so it's possible I just didn't find the right command.
# mount | grep sdg
# mount | grep sg7
# umount /dev/sg7
umount: /dev/sg7: not mounted
# umount /dev/sdg
umount: /dev/sdg: not mounted
# gphoto2 --list-config
*** Error ***
An error occurred in the io-library ('Could not lock the device'): Camera is already in use.
*** Error (-60: 'Could not lock the device') ***
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May 26, 2011
How to use cp command without to overwrite target file permissionsFor examplecp /tmp/file /home/fileI dont want to change chown and chgrp on /home/file
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Mar 8, 2011
I try to write to a file "date > file" but Linux says 'cannot overwrite existing file'. I tried chmod 755 but still cannot write to the file. What should I do?
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Jan 18, 2010
there's a command to overwrite a directory.
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Apr 15, 2011
I run a command in a Linux terminal, the result was written to the desied folder. After I modified the command and rerun it. The old files are still there and not overwritten at all. Only it is successfull after I deleted the old files and run the command.
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Jun 17, 2011
I have a list of files that I am copying around for various purposes. What my current command looks similar to this:cat list_of_files | xargs -I {} /bin/cp -f {} /destination/dirI am using the full path to cp so that the default alias of cp -i does not take effect. However, when I find a duplicate file, it is overwriting any that have already been copied. What I would like to do is to force cp to not overwrite and not prompt.
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Aug 15, 2011
I am trying to make a floppy image with a working file system so that I can test a 2 stage boot loader. When I attempt to mount the floppy and then cp the second binary over to it, mount gets all unhappy. Here are the steps I am trying to use:
dd if=/dev/zero of=floppy.img bs=512 count=2948
mkfs.vfat floppy.img
dd if=boot1.bin of=floppy.img bs=512 count=1
[Code]....
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Aug 24, 2010
I have problem with bootloader , mean to say , after installing fedora 13 my windows 7 bootloader will overwrite, and when i install windows7 boot loader my fedora 13 bootloader will overwrite vice versa
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Jun 29, 2011
I use software where I have to edit a text file in order to get my custom needs from it. Problem is that when the author puts out an update, it always overwrites my changes and I have to spend hours trying to compare the file, re-edit my changes back in, etc. This happens sometimes as often as once per month.
I've wondered if there might be a linux tool or commands which would look through the new file, then at my old file, changing only the text which already exists while not breaking anything else. Most software authors seem to know how to do this but since mine doesn't, how can I accomplish this on my own?
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Jan 5, 2010
For example I want a file to be processed by sed, and then overwrite the file with sed's output. I would try this:
Code:
sed '<regex goes here>' myfile > myfile
But it doesn't work as expected, instead it empties the file (I am thinking that as the first byte comes out of sed, it overwrites the whole file and sed has nothing more to do). How can I make this work?
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Jan 26, 2010
I am writing a shell script that unzips a ZIP file into an existing hierarchy of files, potentially overwriting some of the files. The problem is that the unzip command asks for confirmation: replace jsp/extension/add-aspect.jsp? [y]es, [n]o, [A]ll, [N]one, [r]ename: y
This is unacceptable for a script.I need an option to force unzip to overwrite the files.I did not find in the man page nor with Google.
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May 5, 2010
currently there's a xxx dir already in /home/yyy I'm trying to overwrite itcp -fr ../xxx /home/yyy/doesn't work still prompts me to overwrite the individual files. how do I fix it?
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Jun 10, 2010
I'm using CentOS 5.5 with smbclient 3.0.33-3.28-el5 (latest version in repo), and I can't overwrite files in my Samba store. I am not the admin for the Windows server that hosts the share, so there isn't anything I can do server side. But I do have write permission to the server. I know the server runs Windows XP or Server 2003; I don't know which. I can delete the file, and then copy the new version over, but I can't overwrite it. Using the cp command I'll get this error:
[jonescb@localhost ~]$ cp foo.txt /mnt/si_storage/foo.txt
cp: cannot create regular file `/mnt/si_storage/foo.txt': No such file or directory`
And if I edit a file on the server using vim, I can save it once, but if I save it again I get this: "/mnt/si_storage/foo.txt" E212: Can't open file for writing This is my /etc/fstab entry for the samba server: //192.168.1.2/SI_STORAGE /mnt/si_storage cifs username=myuser,password=mypass 0 0 I can overwrite files just fine on my XP machine. The CentOS box is the only one having problems.
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Aug 6, 2011
Since Ubuntu is smaller than Windows, will it entirely delete Windows to install Ubuntu? The Ubuntu installation won't affect the recovery drive, right?
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Jul 14, 2010
A few months ago I have setup a server with three hard disks. The partition mapping the disks as follows:
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x7ca36fee
[code]....
Now I have the following problem the LVM file system don't mount properly.If I open the mount point I see only a few files of the LVM disk. If I want to unmount the disk I get the following error:
umount /data/
umount: /data/: not mounted
If I want to mount the volume I get the following error:
mount -a
mount: /dev/mapper/gegevens-Data already mounted or /data busy
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Jan 19, 2010
Typically when I'm given a SAN attached to one of my servers i'm not given any information on it. Usually I can get my with an fdisk -l to tell me what's out there. Twice now I've had to ask what the connection device is. What command can be run other than fdisk -l, I've seen something ran people by another guy but was not able to write it down at the time and have forgotten it.
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Apr 8, 2010
I have lots of HDD on my PC and I just mount them to access files, I am wondering if these drives are turned off when unmounted? because I want to remove them physically on my computer unplug its IDE and power cable while ubuntu is running, wont it damage the drive even if its unmounted?
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May 4, 2010
I just upgraded from Karmic to Lucid and have the following problems:
(1) My unmounted partitions used to be visible in "Places" on the left of Nautilus, so I could mount them when needed, but now they are not there. Also,they do not show in "Computer" view
(2) When I open Disk Utility from System/Administration, there is nothing at all showing - it takes quite a while to start up, but when finally the window opens, no devices or partitions are shown.
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Aug 31, 2010
On my desktop, I try to instantly put some disks into sleep using hdparm, for some tests. Though the disks are unmounted, they wake back up in seconds. How can it be? How can I track which process wakes a disk up with what operation? I think unmount disks should default to standby during system load.
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