Ubuntu Security :: ECryptfs Eating Up Double Disk Space?
Aug 24, 2010
I'm getting "Low Disk Space" warnings in Ubuntu 10.04, because of eCryptfs, which somehow manages to eat up twice as much disk space as an unencrypted partition normally would.When I click "Examine" this is the picture that I see:(the blurred out part is my username of course)Why is this happening?And most importantly, what can I do about it?Does Ubuntu expect me to buy twice as much disk space just to encrypt it?!
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Jan 7, 2011
When I installed the system I went ahead and added the private/ecryptfs feature. However, I have never actively (or at least "awaringly") used it. I don't know if it is being used passively or if it contains any of my important data that I cannot already otherwise access.
There is also a problem with space constantly reducing. I'm losing HDD space and I'm not aware of what is causing it. I've tried clearing caches, tmp, things like that, disabling internet, not running applications that would tend to eat at the hard drives. But no luck. And the space free is being very weird. A few days ago I had 700M remaining on my "/" partition (it's a 19G (almost 20G) partition), then a day later I had several gigs free but I did nothing, then another day later it was back to 800M or 700M free. Something very fishy is going on here.
Regardless, my focus on this thread is that dang ".ecryptfs". Can I get rid of it *without* losing data? Disk usage analyzer, partition with a little over 19G: /home is using 20G ...somehow... (and on a 19G partition?!) weird. The main user account home is using 9.7G ...the ".ecryptfs" is using 10.2G. I really do not want that 10.2G to be used just for the sake of some shady ecrypt feature.
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Jan 29, 2009
running ubuntu 8.10 amd64 on my HP intel 2.26ghz dual core processor, 320gb hdd and 4gb ram. My main problem is that when I dual booted ubuntu onto my laptop, I had vista already installed, so I only set aside 20GB of hard disk space for ubuntu, which seems like more than enough to me. What's going on is that it says I have used all my space and only have one GB left, when the only thing I have on my computer are word files and necessary installs like flash player, compiz, avant, etc.When trying to hunt down what was using all my space, first I checked out the disk usage analyzer (some pics from here in):theres my hdd with 1/19 gb remaining here's a breakdown of my home folder, showing that it's not using very much at allhere's my filesystem, now we can see that all the space is being used in the folder: /var
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Jul 28, 2010
#uname -a
Linux box 2.6.32-21-generic-pae #32-Ubuntu SMP Fri Apr 16 09:39:35 UTC 2010 i686 GNU/Linux
#df
[code]....
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Sep 15, 2010
I used ecryptfs on a Private directory. It has about 5GB of data, but no matter what I do I can't free space in there. I have tried to delete some GBs to no avail. System monitor still shows me 5GB.
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Feb 9, 2011
Below you'll see that my home server is currently maxed with something hidden.I noticed that my machine was maxed so i ran a du on / to see where the issue was happening. I freed up 6gbs so far and ~ciaranw keeps eating up any free disk space. But when i look to see what in the folder could be doing this, i get nothing back that accounts for the currently 19gbs thereI've been a long time user of forums but never found the need to actually post seeing as my problem was usually covered, this problem has stumped my googling prowess
[root@mordothebabyeater home]# df /
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
[code]....
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Jun 28, 2010
In my home directory, when I type
Code:
du -hs
I get
Code:
215G
[Code]....
which is approximately HALF the space than actually needed. Is this increase due to ecryptfs? Also I noticed that the hidden folders are not shown. Are the hidden files within the shown folders included in this list? How do I show a summary which includes the hidden files?
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Jan 6, 2010
what this unrecognized disk space means?
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Jan 17, 2010
On a fresh karmic install, I have a user account with ecryptfs enabled home directory. I want that directory to be secured when I log out.
I have two administrator accounts, user1 and user2. I log in as user1 (with ssh, will test regular logins tomorrow), /home/user1/.Private gets mounted to /home/user1, everything is fine. I log out.
I log in as user2, and /home/user1/.Private is indeed unmounted. But I can do
Code:
sudo su - user1
which will ask me for the password of user2, and then I am logged in as user1, /home/user1/.Private is again mounted, without ever typing the password of user1.
On the other hand if I invoke
Code:
ecryptfs-umount-private
[Code]....
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Jun 3, 2010
After a disastrous upgrade to 10.04 I am at my wits end trying to recover my /home partition from my unbootable system. The /home partition is part of a RAID5 array across 4 disks and I've been trying to use some disk imaging tools from Ultimate Boot CD to recover it with, but none of the utilities seem to recognize or will let me work with my multi-disk device.
Currently I've been booting up with a Live CD in attempts to mount the encrypted partition then copy all the files to an external device I bought, but the mounting process has presented me with some problems. The partition in encrypted with ecryptfs and I have both the disk's passphrase as well as an FNEK signature to work with. Attempting the following:
Code:
Another small issue is the cipher I used. I don't remember which kind of encryption the disk is encrypted with (80% sure it's aes though). I assume figuring out which cipher I used will be more like a guessing game through the ecryptfs mount prompt, but I'm wondering if this would affect the error message I get.
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Apr 17, 2011
if it's possible to use a white or blacklist to control which folders are ecryptfs encrypted when you're using the "encrypted home folder" option.
Of course I can always create an extra folder outside of my ~ and then symlink what I don't want encrypted into it, but I'd rather that it's possible to create like, ~/.ecryptsfs/excludelist with a list of paths that shouldn't be encrypted.
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Feb 24, 2011
root@localhost:~ $ df /dev/sdb1
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdb1 1922858352 23247088 1801935664 2% /mnt/external/sdb1
[code]....
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Jan 6, 2011
I recently installed 32bit maverick and wanted to make it login automatically. I tried enabling auto login from Admin > Login but that didnt work and I was still prompted for my password. Then I went to Users & Groups and changed the password option to Do Not ask for password at login now after I reboot, the user list is shown (only 1 user) and it doesnt ask for password after I click on my username.
However, then it gives a few errors (as i vaguely recall):
1. cannot load .ICE directory in my home directory
2. some error 256 about a gconf-sanity-2 file
3. nautilus cannot load my home directory etc
and then it gets stuck without loading anything (blank wallpaper). i ve tried navigating to my home directory using Alt F2, gksudo nautilus and my home dir contents are encrypted by the ecryptfs (there is a readme.txt file and a shortcut). i have tried to decrypt but it doesnt work... i ve also tried to start/stop gdm, and startx but nothing works. if i stop gdm, then the prompt doesnt recognize my password and keeps on rejecting the commands i enter... I think this has something to do with the home dir not being decrypted due to the dont ask for paswd option... how can i disable the dont ask for pwd without the gui (i can access my / by booting through an external usb).
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Jan 31, 2010
Today I was installing a lot of software since I'm just setting up my Slackware system again after a fresh install, and I realized that my root partition has very little space left.
Here is the output of df -h:
Code:
As you can see, I have a 20G (19G here for some reason) root partition, 8G /var, and 86G of /home. I thought this would be plenty since many recent recommendations for / are 10-15G. Now, though, 17G are used up for some reason! How is this possible? I thought a full slackware install only had about 4G of software! I don't have any music or movies or any crazy huge files that I know of, and those would be in my /home directory anyway. Is there any way I can see which files are taking up all this space?
If it's necessary to allocate more space to my / partition, is it still possible to boot up a GParted live Cd, shrink /home a bit, move some partitions to the right, and expand my root partition? I would REALLY prefer I don't have to reinstall since I just spent a ton of time setting up my system again, but if worst comes to worst ... :'-(
In case you're curious, here's my /etc/fstab:
Code:
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Aug 25, 2009
OS: RHEL AS 5 64-bit
HDD:300 GB Hardware mirror (HP blade bl460c)
While installing OS, in partition window after OS file system structure I've left 277 GB. But after installation it shows Size - 255GB and available disk space is 242 GB.
Isn't it weired? How can I use the total amount of space in Linux? I need the whole 277GB exactly. What should be my workaround?
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Feb 26, 2011
Some thing is using up a huge amount of my disk space about 10G and I can not determine what it is. When I look at my disk usage in system monitor it say I have used about 25G and when I scan the directory in disk usage analyzer the entire file system used is 15G.
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May 23, 2010
ran out of space in my /home dir. Have a second hard drive to install and would like to designate it as additional space for /home. I do not want to mount it as a dir inside my home I would like it to simply work as though my /home simply has more space available to it.
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Jan 2, 2010
I'm running mythbuntu 9.04 and am having an issue with disk space.
I try 'rm' various log files but the space I free up lasts less than a minute before the disk reports as being full once more.
df -Th | sort gives:
Quote:
/dev/sda1 ext3 8.3G 7.9G 0 100% /
/dev/sda6 ext3 138G 125G 6.3G 96% /music
/dev/sda7 xfs 783G 617G 167G 79% /videos
/dev/sdb2 xfs 344G 242G 103G 71% /recordings
[Code]....
There's nothing enormous in /var/log and my trash and the root trash are empty.
why size and used fields are not the same despite 100% usage being reported on sda1..
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Nov 18, 2010
I don't understand disk sizes in Linux. I have a 500GB drive. It's ext4. I have run "tune2fs -m 0" on it to reserve the amount of space reserved for root to 0.
I'm using Ubuntu 10.04 that comes with a Disk Utility. When I run "System->Administration->Disk Utility (palimpsest)" the disk shows up as 500GB (see picture). But when I run df -h it shows up as 459GB. So, I don't understand the discrepancy.
When I run df I get the following:
Question: Why is Disk Utility showing me something different than "df"?
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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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Jan 25, 2011
I'm running out of space in wubi. Online wubi help didn't help much since they suggest creating extra virtual disk space(similar to having a diffrent partition i guess) .None of them speak about increasing the size of /root disk space(or root.disk). I store all files in space shared with windows or external disk and use ubuntu only to install and use softwares and browsing. So how do increase the available space for installing more softwares?
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Apr 16, 2009
Can this be done and to restore the disk with a similar cat command.
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Jun 19, 2010
My laptop's been locking up in Linux (Ubuntu, Backtrack, Puppy) periodically for a while now. When it locked up, it was always immune to the magic of SysRq, which I thought might indicate a hardware problem. It became so bad that I had to stop using the laptop.
Today, when I turned it on and tried to boot into Fedora 12, I got the following error (just once, it just locked up at various points during the splash screen after this once):
double fault: 0000 [#1] SMP
last sysfs file:
CPU 0
odules linked in:
Pid: 1, co m: swapper Not ta nted 2.6.32.11-99.fc 2.x86_64 #VGN-T 250N
RIP: 0010:[<ff
All the seemingly missing letters were really missing, not my typos.
As you can see, kernel version is 2.6.32.11-99.fc12.x86_64 and my laptop is a Sony Vaio TZ 250N (Core 2 Duo ULV 1.2GHZ). Note that with the other remaining kernels from the updates, nothing ever happened other than the locking up. The core temperatures hover pretty high, about 55-60C peak but this is still below the critical temp. Memtest came up clean when the problem first started happening.
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Mar 24, 2011
Until now I have just formated the disks, but it's frustrating since I need the files on the disk and I bet there's an easier way out. I tried to physically delete the .trash folder in the flash disk but that didn't work either. So, what do I do?
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Jun 11, 2011
I installed Ubuntu 11.04 (with wubi) and selected that I wanted 10 GB of disk space for Ubuntu.
There are two things I want to do now, so two questions:
1. How do I delete Windows OS from my computer? It's a new computer so I am sure I want to delete and I did not download anything but a few things on it.
2. After I do that, how do I set Ubuntu so that it's not still at 10 GB of disk space.
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Apr 27, 2010
A few days ago, I got a message that stated I had zero bytes of disk space left.Odd, I thought, but I had been doing video transcribing and thought that may be the issue.I moved a video (4 GB) off the hard drive to an external drive and then went about my business.This morning, I got the message again. I enclosed a screen shot. I moved a few more items off my hard drive - but then was soon out of space again. (Less than an hour later.)I logged in as root and poked around. I noticed that /var/archives had almost 60 GB of data in .tar.gz files.I moved them off to an external drive and am okay for now.
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May 7, 2010
I want to update my com but update manager says "The upgrade needs a total of 498M free space on disk '/'. free at least an additional 495M of disk space on '/'. Empty your trash and remove temporary packages of former installations using 'sudo apt-get clean'. I tried sudo apt-get clean and it did nothing I also checked the trash and theres nothing.
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May 30, 2010
I just booted it up and it said I had 60mb hard disk space left. I go onto disk usage analyzer from the message and it reads this
Total filesystem capacity: 41.8 GB (used: 11.8 GB) available 30.0 GB.
why this error message comes up?
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Jun 25, 2010
I've got a slicehost VPS with 10GB disk space, and I'm trying to extract a 6.4gb ISO file. Between the ISO and the OS i've got just 761MB to play with. Is there anyway to extract files from within the ISO without needing another 6.4gb?
I've tried mounting the ISO as read/write so I could move files instead of copy, but did not have any luck. See here and here.
Should I just give up, download the iso, then re-upload the files? 6.4gb represents a long time over dsl.
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Aug 12, 2010
I just finished my computer build and have installed Ubuntu lucid as my sole OS. Everything seems to be going well except for the fact that when I do "df -h", the size of my 1TB hard drive is reported as being only 908GB. I could understand if it was off by a few gigs but 92? The result is the same with the graphical "Disk Usage Analyzer." However, Under System>Administration>Disk Utility the correct number is displayed.
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