OpenSUSE Install :: Full Encrypted System (expected /boot)with The Best Possible Algorithm And Key Length?
Aug 18, 2010
but I wantto set up a new system with openSUSE 11.3 The system should be fully encrypted. I want to use the best possible encryption.1 I am not sure, AES 256 xts-plain is the most secure single algorithm, isn't it?2 Is it possible to use a cipher? 3 Which algorithm does the yast-installer use when I encrypt the whole system with a logical volume group?I have read this two articles:a) Encrypted Root File System - openSUSEb) openSUSE Lizards encrypted root file system on LVMBut I have to say that these routines are a little bit complicated in my eyes.Isnt there a easier way to encrypt the whole OS?I know there is a 64bit live cd available. 4 So the first description (a) is obsolete?5 How can I set up a (fully encrypted) system without using LVM?The hard disk layout should be done in this way:
/boot sda1
/enhanced partition sda2
/swap sda5
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Mar 21, 2011
I followed this tutorial to encrypt my entire installation: SDB:Encrypted root file system - openSUSE
It worked splendidly and whoever wrote it should get a lifetime supply of beer. After I got the install encrypted I made a RAID 1 array of 2 1GB disks and encrypted that as well. They are used for a data repository.
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Feb 6, 2011
I haven't used encryption previously but through that for better security, I would enable it on one of my disks. I went though the process and when done, copied data to the device etc. My house had a powercut the other day and I noticed that the device did not mount automatically upon restart. Unfortunately, I have forgotten the de-cryption password and have lost access to my data. Is there a way of either recovering my password or getting the partition to mount without the password so I can access the data, copy/back up and then re-create the partition without encryption?
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Oct 20, 2010
For some reason I can't find any documentation re: the algorithm(s) used by Ubuntu to encrypt the filesystem... Anyone know what it is?? AES?
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Jul 16, 2010
I just upgraded my OpenSuSE 11.2 system to 11.3 and have experienced the following problem:
My hard drive was encrypted beforehand, and after the upgrade(which went smoothly) will no longer decrypt. I type in my passphrase at the prompt, press enter and the start up process never resumes. I am able to access the filesystem from the Rescue System option in the install disk. What's strange is that this worked smoothly on another laptop of mine.
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Aug 16, 2011
I've installed opensuse 11.4 by doing a network install, (boot off kernel + initrd, everything else is fetched off network) and i skipped the bootloader part because i've already got two other linux systems set up with grub2 on my computer. I picked the minimal server install (text mode) and didn't make any other software selectiono changes.
My partition layout is as follows
ssd drive contains / partitions for distributions (GPT layout) hdd drive contains encrypted lvm PV (PV on a luks partition). inside that PV is a VG with volumes for /home and /var (and other), where each distribution has its own /var.
The problem is that i cannot get initrd to open the luks properly. i tried chrooting, rebuilding the image with mkinitrd -f "lvm2 luks" ( i saw that somewhere on opensuse wiki, i think ) and adding boot parameters like this : lvm_box=/dev/disk/by-uuid/<luks partiiton UUID> lvm="box" (where box is the name of the lvm array).
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Oct 18, 2010
I have a problem that I can't login to SUSE in graphical mode. I get to the login prompt; enter my username and password; SUSE starts to do the login but then crashes back to the login prompt. Looking in /var/log/messages doesn't tell me anything useful. However, I noticed that my SUSE system partition is full (at 20 GB). So I think this is the culprit that is stopping my login.
Unfortunately, I can't extend my system partition as it is ext4 (SUSE default) but parted (from SUSE 11.2 live cd) complains that it can't do anything with ext4.
I'm using
OpenSUSE11.2 x86_64
KDE 4.3.5
Linux 2.6.31.14-0.1-desktop
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Nov 24, 2010
I can't login due to my file-system being full. I found the main area with the large usage. Var/log is taking 99.5% of my var folder. On a full file-system scan Var/log is taking up 85% of disk use. File-system capacity is 36 gig. Temp is cleared after each boot.
What can I do to clean up any unnecessary files. I can only boot in safe mode and have limited navigation skills. To get scan results I booted a live-disc.
Opensuse 11.2 gnome 64 bit.
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Oct 8, 2010
I am trying to get conky to use the whole length of the screen instead of just have.This is my conky file. PLease help.
Code:
Conky 2
background yes
use_xft yes
xftfont HandelGotD:size=8
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Jan 11, 2011
I have Suse 11.3 KDE dual boot with Win 7. There is a Desktop Folder on the main screen, with one icon named "My Computer". when I click this icon, Konqueror opens a window with detailed information of the System along with Disk Information (detailed partitions of Windows 7). Once I select any one of these partitions, it opens the one said partition.
One thing I have noticed, if I "Right Click" a folder in this Win 7 partition, there is an option of opening that folder with Dolphin Super user Mode. After using this, I can edit the contained subfolders or files.On the other hand if there is a file (i.e. outside a folder), there is no option of Super user Mode and I cannot edit these files. at times I have to rename them or delete them. But for doing so I have to restart computer and go into Windows (which I don't like)is there any way of having a full control of Suse and Windows (permanently). I read the thread mentioned here: FSTAB - Editing Manually
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Mar 23, 2010
I read that passwd -S spits out informationabout a user's password including the encryption algorithm used to encrypt the password in /etc/shadow. I ran the command but nothing about the algorithm is returned. Is this a quirk in openSUSE?On another note, I've determined through other means that I've selected blowfishryption as evidenced by the $2blah$2blahblah format of the /etc/shadow entry. However, if I look at /etc/default/passwd it lists CRYPT=md5. If I'm using blowfish why would that variable be set to md5. onversely, if it is set to md5 why is the blowfish algorithm being invoked?
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Mar 27, 2011
OpenSUSE 11.4 install from DVD with default options. (KDE Desktop, selected language and keyboard is German)
When installing from the 32bit media KDE is always English afterwards but when installing from the 64bit media I will have a german KDE as expected. Changing country & language & preferred language on the 32bit does not help - still in English.
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Apr 28, 2011
I just installed OS 11.4 this morning. Was previously on CentOS. I chose to have it import the partition & raid setup during install. Now when it boots it hangs with
"Could not find /dev/disk/by-label //" "Want me to fall back to /dev/disk/by_id/ata-ST(lots of drive stuff) -part2 (Y/n)" If I just hit ENTER at that point the boot will go on and it runs fine, but it stalls every time with that same error on boot. I did quite a bit of searching with Google and here (the search here considers every word in the error message to be too short or too common).
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Apr 22, 2011
I tried to update one of my home machines with a fresh install. This is far from new to me so I did not expect any problem. But I was proven wrong. First: did install the system as usual. First anomaly: system blocked during the install process but did restart it flawlessly one I tried to eject the DVD from the player. It needed actually that intervention to retake working. It then went to install and froze during the first system start. I rebooted with failsafe settings, it then correctly configured. I reached a beautiful desktop. I performed the updates from the update repository and I joined the nvidia proprietary driver repository (which updated to the G02 driver).
I then rebooted the machine and now I am in trouble. In normal mode the system (dual boot Opensuse, XP) does not boot at all and freezes immediately after hitting enter as before. In safe mode it goes further but does not reach X anymore. It blocks with the following line statement: "system console stolen at line 266". I then tried "startx". But the system goes into a scrolling loop that does not allow me to read the output. how to get at least the error message of the loop? I read some line passing by that the system might have an X11 authorization problem.
Athlon Phenom X4 905e
Nividea G7600 graphic card
Former system installed and running flawlessly: 11.1
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Jan 21, 2009
I need a FREE solution that can image an entire Luks system encrypted volume and the rest of the used HDD, the MBR and /boot partition. Note: MBR and /boot are not encrypted. Note 2: I want to be able to restore entire drive from image with only a couple of steps. Note 3: Destination HDD space is a factor. Image file must be compressed and the image file must be around 40 to 50 GB or less. The smaller the image the better.
I have used clonezilla live cd before but not for encrypted volumes. I know you can install it in Linux. But, I don't know how to configure it after installation. I would be very happy if someone could tell me how to configure clonezilla in Fedora. How to guides are also welcome. I have one more question. If I image the encrypted volumes and all the stuff I mentioned above while logged in to Fedora, and I restore the drive from the image, will the recovered drive still be encrypted?
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Feb 24, 2010
I used to know how to access and rw other linux drives and do the fstab magic. For some reason I've lost my touch. I just want the drive to automount and have full access. I don't need a beginners tutorial on mkdir and fdisk -l. Is there a foolproof way to get my drives to do what I want? I dual boot fedora and ubuntu, but have the same issues on both.
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May 12, 2010
This question has been raised several times I am sure but...
I would like to create a FULL recovery CD/DVD of my system with a boot restore...
Any recommended for Ubuntu 10LTE Server.
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Jul 4, 2011
I set up opensuse 11.4. I updated nvidia 6600 drivers from vendor. Everything is good until automatic kernel update. When I start the system, opensuse is not open with this lines.
/etc/rc.status: line 1: /bin/ash : no such file or directory
bash: ./etc/sysconfig/chron : cannot execute binary file
X_MOUSE_CURSOR : Undefined variable
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Sep 5, 2010
I would like to remove openSUSE (11.3) from my dual boot (/Windows) system. In the old days, the install CD used to have an option for that, but now my DVD doesn't have anything, or perhaps I overlooked?
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Apr 27, 2011
I did a fresh install of SuSE 11.4 (WIN7 TOO) and changed my Larger HD1 to the first HD. I was installing and got this error first: the boot loader is installed on a partition that does not lie entirely below 128GB The system might not boot if BIOS supports only lba24 (result is error during install grub mbr) status loc dev/sdb6
I continued with the install and then got:
Yast2 error occured
while installing GRUB ver 0.97 (640k lower/3072k upper memory)
[minimal bash-like lineediting is supported? for the first word, TAB lists possible command completition anywhere else TAB lists possible completion of a device/filename]
grub setup --stage2=/boot/grub/stage2 --force4-lba (hd0,5) (hd0,5)
Error 25
disk read error
grub> quit
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May 20, 2010
algorithm:breada
input: file system block number for immediate read
file system block number for asynchronous read
output:buffer containing data for immediate read {
if(first block not in cache) {
get buffer for first block
if(buffer data not valid)
initiate disk read }
if(second block not in cache) {
get buffer for second block)
if(buffer data valid) //line 1
release buffer else
initiate disk read //line 2 }
if(first block was originally in cache) //line 3 {
read first block
return buffer }
sleep (event first buffer contains valid data)
return buffer }
Here is an algorithm for block read algorithm. I have problem in
line 1: If buffer data is valid why is it releasing the buffer?
line 2: If buffer data valid why is it initiating disk read. It should have read directly from buffer?
line 3: It should be the first condition as if it is there in cache then it should return it without delay?
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Jun 1, 2013
I'm a long time user of Debian, but I'm having trouble with my partitioning process. Here is where I currently stand:
I am installing the latest Wheezy build. I am trying to install debian with an encrypted LVM that spans two hard disks.
My partitioning layout is as:
1. /home
2. /root
3. swap
4. /boot
I then added partitions 1, 2 and 3 to a physical volume group. I then took that physical volume group and added it to a logical volume. Then I encrypted the logical volume, leaving the /boot partition untouched. I was under the assumption that the only partition the system needed free to reach the loading of the LVM is the /boot partition, as it holds the files necessary for booting. But when I attempt to finalize the disk, it gives an error stating, "No root file system detected". That would be an issue as it is currently sitting inside the encrypted LV. Am I wrong in including the root partition in the encrypted LV?
What is the best way of having as little of my file system non-encrypted as possible while still allowing a proper boot?
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Jan 31, 2010
I was installing the kernel-pae, in the middle of the installation it said it couldn't resolve some dependencies. it ask me to ignore or cancel I chose to cancel there after my system froze.
Now I cant boot any more I get the following:
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Oct 22, 2010
Gnome is falling apart and I've had a lot of nagging problems that I couldn't overcome.I'm thinking of wiping the OpenSuse partitions and doing a clean install without wiping the windows partition.I initially setup using the 11.0/XP dual boot FAQ in the How To forum.I have my Home directory backed up on an external HD. Might try KDE next go-round or KDE & Gnome as separate users. I have 11.2 i586 installation DVD.
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Sep 7, 2010
I love opensuse as it's much snappier than MINT. But my system 11.3 is freezing while booting. I pressed ESC during splash and can see messages on the screen. The last message is ATA3 Exception EMASK. I have uploaded the /var/boot.msg here klogd 1.4.1, log source = ksys - Suse Freeze - CuQAd3dg - Pastebin. There are no other log files!
My system:
Intel Core2duo
Mother board Intel DG31PR
Intel integrated graphics G33
3 GB DDR2 RAM
250 GB SATA2 Hard drive
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Apr 28, 2011
I had a triple OS xp 7 and Linux Open SUSE 11.4 the last one was the active partition.the grup boot loader used to provide a OS selection screen .any way , I cant boot my system after restoring a full disk image created by "Acronis TrueImage program" , what happens is that i get a BIOS message "there is no operating system insert disk and try again"however when i set winxp partation as active i can boot winxp againThere is some thing I'd like to ask for please ,when i install Linux : did it install grup boot loader on the master boot record or on the boot sector of the / partition ?
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Jan 24, 2010
I am using OpenSuse 11.2 (64 bits) with KDE 4.3.1. My hard disk partition contains 3 areas : / + /home + swap. Frequently the / area is filling with, I suppose, temporary files until it is full (15 Go) and that in a very short time, typically about 5 mn. Then, these files are cleaned by the system, when disk space is needed I suppose. The point is that during this time, the system goes slower and slower until the "cleaning". That seems to occur only when Firefox (3.5.6) is running so I suppose that these files are temporary internet files.
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Jan 1, 2016
I just installed Debian Testing on an encrypted partition (using the encryption feature in the installer). Problem is when I boot I enter the passphrase and then Debian starts to load a bit and then it stops and won't move again. During a normal boot the boot stops after : EDAC sbridge : Couldn't find mci handler Then do a recovery mode boot from grub loader so more information is displayed during the boot time and it stops after : [12.513770] fb: switching to nouveaufb from simple it stops there I can't type anything, I can reboot the computer with ctrl+alt+del tho
I was booting just fine in a previous installation on a MBR-partitioned disk (now it's GPT-partitioned). I have to add that during installation I added a second encrypted volume on a HDD (while / is on a SSD) that mounts to /data. When few days ago I installed it on the MBR-partitioned disk it asked me for the /data passphrase pretty fast, now it just seems to boot and asks me only one passphrase until it freezes.
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Aug 23, 2010
how to check my system bit length on linux machine.?
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Jul 9, 2010
I wish to add more OS to my dual boot system with suse (sda) and windows7 (sda). The plan is to add Linux Mint(sda), PC BSD (sda), Fedora (sdb) and Solaris (sdb). I wish to remove grub2 from mint and install grub legacy, not sure whether it will work or not. I will be reinstalling grub from suse dvd. It gives me a free hand for adding boot entries. I wish to know whether I can remove grub2 and install grub legacy. In grub2 all boot related folders are stored in more than 1 place like /boot and /etc and subfolders.
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