Is this irrelevant if you are using the kde install disc? I want to use a encrypted filesystem. I would think since I am using kde that I would have a graphical interface.
View 10 RepliesI have an encrypted filesystem that I've decided I don't want encrypted anymore. Seems the easiest way to do this is simply reformat the filesystem, but I can't. If I try to do it in YaST2 I get either system error code -3005 (unknown) or -3008 (apparently in use). When I try to do it from the command line I get:
Code:
frylock:/home/joel # umount /dev/sdb5
umount: /dev/sdb5: not mounted
frylock:/home/joel # mkfs -t ext4 /dev/sdb5
mke2fs 1.41.9 (22-Aug-2009)
/dev/sdb5 is apparently in use by the system; will not make a filesystem here!
frylock:/home/joel #
It's unmounted, I don't know how to make it any less in use than that.I can't delete the partition because it's not the last logical partition in the extended partition.
I have two ext3 partitions within an encrypted lvm2 volume. when i start up my system it says that there are 0.3% non contiguous blocks.
This is my steup:
When i want to repair with repair system from dvd it tells me that the repair and check operation for encrypted LVM devices is not supported. so how can i fix my filesystem?
I'm trying to mount an external DVD +RW Drive so I can burn a directory from my Linux Server to disk. I think I've figured out how to mount the drive, but it only works when there's a disk with data in the drive. When I enter mount /dev/scd1 /mnt I'm able to read from the drive, no problem. When I try to do the same thing, however, with a blank disk I get the following message: "mount: you must specify a filesystem type" So I'm assuming I need to prepare the disk somehow. I've verified that the dvd+rw-tools package is installed on the RH server but I'm not sure what the next step is.
View 4 Replies View RelatedI386 install dvd, gets to the point where it needs to resolve packages and then anaconda crashes. http://jaojbre.users.sbb.rs/anacdump.txt contains detailed log file. Any idea?
View 1 Replies View RelatedI encrypted "/" and "/home" during boot with F12. Now I'm trying to install F13. The problem is it will not allow to specify /home as the mount point. It will take /home and not complain but when I get back to summary there is no mount point, just blank. When I entered the passphrase it didn't complain so I think that is okay. The / dir I said I wanted to format, so it accepted the / mount point.
I tried to go ahead and install F13 anyway thinking it may figure this out. However it didn't use my /home but created a new /home.
I have AMD athlon 64 processor, Seagate 160GB SATA Hard Disk, ASUS A8VMX mother board.With this configuration, I can Install FC7 without any error. But all the latest releases after FC7 is not detecting my Hard disk. Is there any solution to solve this problem? Actually I'm searching for a solution when the FC8 released. Now I have all the later releases from FC8 to FC11 DVD except FC9. But none is working .
View 1 Replies View RelatedI have used ubuntu distribution in wich i can install grub on a fat32 Filesystem. Can i install Grub on a fat32 filesystem with Fedora 12?
View 6 Replies View RelatedI have just installed 11.3 x64. The installation went fine and worked for the first few hours. I ran the online update tool, and now it cannot find grub unless the installation disc is inserted and I select the "boot from hard disc" option.
I have read about the problem of the root partition being back, but not sure that's it.
sda1 - swap
sda2 - /
sda3 - /home
There used to be a repair tool in the installation disks. I could not find that in this media. Is that still available?
I'm trying to install files and everytime I manage to install from the first disc I succeed. When I get the the second disc I just keep clicking the "OK" button instead of "Cancel" and it keeps neglecting it.
View 1 Replies View RelatedI bought new hdd (WD2002FAEX-007BA0). This disk have normal block size (512bytes) so I do not bother with the alignment.I trying make test write speed.
Code:
dd if=/dev/zero of=/dev/sda oflag=direct bs=16384 count=100000
100000+0 records in
[code]...
I have a dual boot system with ubuntu 9.10 x64 and Windows 7. Everything has been working fine for a a long time but yesterday I tried to delete an unused partition through the Disk Utility in ubuntu (System->Adminstration->Disk Utility) and everything was messed up. I used to get the "Grub error: Unknown filesystem". I managed to create an ubuntu bootable usb and followed some tutorials for fixing grub but all i managed to do is to get another error: "Grub error: No such disc". After some experimentation i got
"Grub stage 1.5" which gave me a grub> command prompt./dev/sda is the drive containing Windows and Ubuntu.
Code:
[ Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Grub 0.97 is installed in the MBR of /dev/sda and looks on the same drive
in partition #6 for /boot/grub/stage2 and /boot/grub/menu.lst.
[code].....
Is it somehow possible to boot a Linux operating system from an encrypted filesystem/disk without having uesr interaction? Background: I am preparing a VmWare Image for shipment to a customer. This image contains sensible data. The only access granted shall be via an apache server running from inside in the image.
View 1 Replies View RelatedI'm looking for a way to store an encrypted filesystem on rsync.net which can be mounted and used by multiple clients concurrently - I've considered and experimented with many different ideas, including code...
but all of them are leading me to what looks like a fundamental theoretical problem: a filesystem with concurrent access needs someone to manage it, and who's going to manage it if I can't trust the server? Or refuse on principle to trust the server? There would need to be some trusted entity communicating with every client and making decisions to keep the filesystem and/or block device consistent, right?
Is my understanding correct, or is there any way of achieving what I'm trying to do?
I have a external HDD with eSATA and USB connectors available. I want to use this HDD to store my backups. The HDD should be encrypted (my main system is as well).
So here is what I did so far:
1) I used the following code to create the encrypted LUKS partition with EXT3 Filesystem:
Code:
cryptsetup -c aes-xts-plain -s 512 luksFormat /dev/sdb1
cryptsetup luksOpen /dev/sdb1 luks
mkfs.ext3 /dev/mapper/luks
The system always hang when I executed the "mkfs.ext3..." command, so I switched the HDD from eSATA to USB and then it worked fine.
2) When I switched on the ext. HDD the first time, the drive was recognized automatically and Nautilus asked for the password. I typed it in as checked the checkbox to remember the password in the future. For the backup I use a nice script that I found in another forum, where I can define a mountpoint and then the script will check for previous backups and only make a incremental backup based of the latest version. The script also mounts the drive automatically. In order to always have the same mountpoint, I want to make an entry in the /etc/fstab using the UUID of the ext. HDD.
Whatever I tried, it doesn't work. What am I doing wrong? Here is my current /etc/fstab
Code:
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# / was on /dev/mapper/ubuntu-root during installation
UUID=2ea47421-73ce-4c66-9606-8a1db81ae640 / ext3 relatime,errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=dbdeb793-1d4e-43ea-8986-7b37fdbc9674 /boot ext3 relatime 0 2
# /home was on /dev/mapper/ubuntu-home during installation
UUID=42702091-83e6-43eb-aad1-108f43eedf9d /home ext3 relatime 0 2
# swap was on /dev/mapper/ubuntu-swap during installation
UUID=e225bcf9-908b-4226-a963-6b02ee658df1 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
# Eintrag wegen iPhone
none /proc/bus/usb usbfs devgid=125,devmode=666,nodev,nosuid,noexec 0 0
# external HDD
UUID=913977f7-8fa6-416f-af79-b5f913b68f53 /media/backup-hdd ext3 noauto,users 0 0
I made the "none /proc/bus/usb..." entry because it was recommended to ensure correct behaviour of the iPhone. Not sure if I need it though.
I created the mountpoint with this command:
Code:
sudo mkdir /media/backup-hdd
Now it seems the mountpoints owner is not root - strange right?
Code:
2 4 drwxr-xr-x 3 michael michael 4096 2010-01-15 02:45 backup-hdd
How should I mount this drive correctly? It will be automounted as every USB device, but that should not be the case. I want the script to mount and unmount the drive.
Recently I was forced to hard reset my computer a couple of times (mostly out of frustration) and due to my idiocy i was confronted with the standard Kernel Panic message at bootup. I tried running an fsck from live cd which corrected a bunch of errors but to no avail (as far as getting rid of the Kernel Panic msg). I then tried to mount the filesystem by accessing it from live cd (and later even installed ubuntu on a small leftover partition to get rid of the annoying live cd lag) but it says that I don't have access to my home or root folder. Mounting from command line gave the same issue.
So now to the question. Is there a general procedure to access data in my corrupt filesystem if it is encrypted?
I am trying to create an encrypted file and later mount it as a filesystem.
KEY=`tr -cd [:graph:] < /dev/urandom | head -c 79`
echo $KEY | openssl aes-256-cbc > container.key
dd if=/dev/urandom of=~/container.img bs=1G count=10
losetup /dev/loop0 ~/container.img
[code]....
The luksOpen command asks me for my passphrase, but always rejects it. I have retried this several times and written down the passphrase - and even tried with a very simple one just to check. And I never can make it work.
how can I set the keyboard layout used by Debian to enter the password of my encrypted filesystem?
After my recent "aptitude upgrade", I have not been able to mount my encrypted filesystem anymore. I have discovered that the keyboard layout used to enter the password has changed. Problem is that with such layout I can't enter some of the characters composing the password. The encrypted filesystem looks intact, since I have been able to mount it and backup my files by means of a live CD. That means that I can edit any system file, if needed.
Every technique I have found to change layout cannot be employed in this case, since they rely on the system being up and running. I've tried editing /etc/default/keyboard, but that does not work.
I've created encryption systems on servers, but nearly always I have stored the password somewhere on the machine itself. The file is always 0600 to the relevant user, but a systematic analysis of my system could easily find the scripts that invoke decryption and discover the password. (The most blatant example of this is mounting SMB shares with the "-o credential_file" option where both the username and password are plain-text. In the cases where I've used this, the security of the share hasn't particularly mattered.)
Soon I might be faced with storing "patient health information" (PHI in the healthcare world) whose privacy is heavily regulated by the provisions of the US law called HIPAA. I've been thinking about creating an encrypted partition to hold the PHI, but I need a highly fault-tolerant method for obtaining the key from a different machine than tha server itself. At first, I thought about running a script using scp and shared keys to copy the key from the remote, use it to decrypt the partition, then erase it. I'd like to be able to do this with a pipe; otherwise I'll write the key in a non-persistent location like /dev/shm.
I need more than one machine to make this work to ensure I can obtain the key when needed (like at boot). One solution is to place copies of the key on multiple servers and try each of them until I find it. A more elegant solution would place the key in a DNS TXT record. I suspect I could use LDAP for this as well, but OpenLDAP and I have never really been on speaking terms. So does this make sense? I presume I can write a bash script to do all this at boot. Most of what will be stored in this partition is the PostgreSQL database in /var/lib/pgsql and perhaps some other files.
My understanding of encrypted file systems is that they are only encrypted when unmounted. When mounted they must be as visible to the operating system as an unencrypted partition. I suppose you could apply encryption to every single disk transaction, but that would require knowing the key all the time, and would seem to add a lot of overhead.
When I try to mount a linux file system that was encrypted using cryptsetup I get the following error:
debian:/# mount /dev/sdb3
Command sukey slot 0
mount: u moet een bestandssysteemsoort aangeven
mount failed with run_sync status 32
Command failed: Device busy
mount.crypto_LUKS(crypto-dmc.c:168): Could not unload dm-crypt device "/dev/mapper/_dev_sdb3", cryptsetup returned HXproc status 240
"mount: u moet een bestandssysteemsoort aangeven" is dutch for
"you must specify filesystem type"
I'm sorry for this stupid question, but I have nowhere found it.I need to access to my USB disc from text mode (In Fedora LiveCD I see it and i can access /media/New Volume). In F12 runlevel 3 in mc I see it in /dev/disc/by-label as @Newx20Volume. But I don't know what is the correct path.
View 2 Replies View RelatedI have implemented a web application on Linux that I want to deploy and sell to customers. I want to sell ready systems including the hardware. The application is written in PHP/MySQL. What I am searching to achieve is :
1) Find a way so that filesystem and partitions to be encrypted but without the need to insert some code when rebooting. So that if someone gets out the hard disks and attach to another system, cannot have any access to my files or settings. And of course when rebooting (e.g. after a power failure) encryption to be applied automatically.
2) I know that there are ways to bypass root password on a Linux system. Can all these ways be unassigned ? I want the only way to have access to system, to be by using the root password and nothing else.
I have thought of using a virtual server instead of a physical one (like deploying a virtualbox server) but still would like this to be the most secure possible including not only remote but also local access to system.
I have been running ONLY linux (ubuntu) on my computer for years now. However, a friend sucked me back into the world of MMO's (angry fist @ RIFT). So, I decided to pick up a new disc, slap windows 7 on it and now want to dual boot.Basically I had to do some disc juggling to get windows to play nice. So my windows drive is now first, then my Ubuntu drive second.Its been a while so I'm wondering how involved / what would be the steps to get grub2 to chainload into windows7 (in my head I want to say I'm going to boot into the live cd, mount the windows disc and reinstall the loader to the windows drive since its the first disc in the chain?)
View 1 Replies View RelatedI'm a complete novice who installed ubuntu 10.10 this morning, which seemed like it worked great until I noticed that I had to connect to the wireless network manually each time I re-started etc. I did some research into this and found that if you disable the network manager via the terminal section by replacing certain lines with 'deny' instead of accept or something. I did this however the nm was unable to connect anymore! I've been tearing my hair out searching the net, and this forum for a solution but to no avail. Ive since removed network manager while trying one (of many) ways I found online, so need to install it once more. I even tried to install the whole os again from the disc that I did so with initially, but it doesn't work either!Ill be more than happy to connect every time I turn on if it means I can access the net once more!
View 1 Replies View RelatedI am very new to linux, and I have a question regarding the filesystem check (fsck). The power recently went out and when I tried to restart linux the following error appears:
*/dev/sda1 contains file system w/errors, check forced it then goes on to say..
*An error occured 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) I wasn't sure what to do, but checked some other online forums and they suggested running fsck manually - so I typed in the root password - and used the command, "fsck -A -V ; echo == $? ==" it then gave the following message
*WARNING!!! Running e2fsck on a mounted filesystem may cause SEVERE filesystem damage
*Would you like to continue (y/n)
Again, I wasn't sure what to do so i just checked no. I then manually turned off the computer and was prompted at the beginning to press Alt-3. I was brought to another screen and it informed me one of the drives was degraded and suggested rebuilding the array. I tried doing this, but it still brings me back to the original error of, "/dev/sda1 contains file system w/errors, check forced," and the process continues.
Also, when I tried to rebuild the array, I didn't backup any of the data on our home directory before doing this (which was probably a big mistake). After being prompted to type the root password, I was able to give the ls command and look at all the directories...the home directory where our data was stored was empty and I am afraid I may have lost some information. Is there a possibility that data was lost when I was trying to rebuild using the old drives?
I am trying to install debian on a compaq presario 6000. When I try to boot off of the first dvd it just won't do anyting most of the time; one flat line keeps blinking. The first time that I booted it, there was that line that starts with isolinux, but that was only there the first time. now nothing shows up.That first time, I got several error messages: EDD: error 8000 reading sector 1360652 and the same thing 5 times over with different numbers at the end. Do these mean that the disc is corrupt in some way, or that the dvd reader is broken or something else?
View 14 Replies View RelatedIs it possible/easy to create my own install disc based on the install that I have now? I just got finished setting up ubuntu on a new computer and I want to make an install disc that has everything that I have set up ALREADY set up right after installation.
View 2 Replies View RelatedI DLed 10.10 iso and burned it to cd. When I try to boot with cd, it starts up fine, I get the Ubuntu logo with rolling dots, but after a few mins it freezes (with logo still on screen). I have been running Ubuntu on this comp for years
View 9 Replies View RelatedI want to reinstall lucid for various reasons, so I downloaded the file, burnt it to cd and then booted with the cd in. An ubuntu screen started then went to a black screen with the message:(initramfs) mount: mounting /dev/loop0 on //filesystem.squashfs failed: input/output errorCan not mount /dev/loop0(1cdrom/casper/filesystem.squashfs) on //filesystem.squashfsthen no further progress.
View 5 Replies View RelatedI am new to Linux and I'm trying to install OpenSuse on my machine:
AMD Athlon 64 3200+ / 2.0 GHz
ATI Radeon Xpress 200
512.0 MB DDR SDRAM
ATI Radeon Xpress 200 Shared video memory (UMA)
DVD-RW 16X TSSTcorp CD/DVDW TS-H552B drive
Western Digital WD3200AAJB 320GB Hard Drive
I downloaded the ISO for version 11.4-i586 DVD size from DirectLink on opensuse.org. I checked the Windows MD5CHECKSUM and verifyied it. The installation goes fine until it begins installing packages when it prompts:
"Insert Disc 1"
Which I believe is the Disc that I burned already with the ISO file and is in the DVD-ROM drive that it's asking for. This happens for several files, and prompt me to either
retry/skip/abort/cancel
If I click Retry I get "media1.media not found" or a similar message. If I click Abort/Skip/Cancel the installation stops and takes me to a text version of the installation which then stops and says that it can not find the Installation Package either.
I have looked for reasons behind this but all I could find was possibly Mounting the DVD-ROM but the installatin runs fine until it begins looking for specific files and says it can't find the files on the Disc, even though it's in the DVD drive.