Fedora Installation :: 15 - LUKS Encrypted Logical Volumes Not Mounting On Boot
May 26, 2011
I have a setup that looks like this
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and I'm dumped into recovery mode. However, if I remove these mounts from /etc/fstab via comments, I can wait for the system to boot (which it does very quickly) then mount the mapper devices myself. So what is going on? Has something changed wrt logical volumes, or is this just systemd? I can live with manual mounting, but any advice on resolving the automatic mounting situation would be great.
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Jan 3, 2010
I'm just wondering - what is the best way to set up your encrypted volumes with dm_crypt and LUKS?
My understanding was that aes-lrw ws better than aes-cbc - and then I stumble upon [url] which says that LRW has some problems, and XTS is better? I dont know enough about encryption theory to be able to say anything, so i'm hoping some folks more enlightened will be able to say something here.
I was previously using aes-lrw-benbi to set up a volume. If xts is truly better - should i be using '-c aes-xts-benbi' then?
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Aug 26, 2011
I've had everything but /boot on LVM LUKS encryption since I installed 11.4 on my netbook. Suddenly it won't accept my password and boot. Nothing had been updated since the last successful boot. The only possibly different thing that occurred was that I had plugged in my Android phone to charge before it booted up. Anyway, the specific error it gives when I enter the password (and I'm absolutely sure it's the correct password):
Code:
No key available with this passphrase.
Here is everything else on the screen:
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doing fast boot
Creating device nodes with udev
[number (not sure if relevant/unique)] fb:conflicting fb hw usage inteldrmfb vs VESA VGA - removing gen
Volume group "system" not found
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Apr 24, 2011
I have let the debian installer set up with separate partions forrootusrvarhometmpIt ended up with a huge home partition and little place for the others.So I wanted to give some of home's space to the others and didlvreduce on homelvextend on the others.Following some info on the net it tells you toe2fsck -f partition1 followed by aresize2fs partition1But when I try to fsck the reduced home partition I got the following error:The filesystem size (according to the superblock) is 73113600 blocksThe physical size of the device is 20447332 blocksEither the superblock or the partition table is likely to be corrupt!Abort? yesIs there any way to save this?
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Feb 8, 2011
i have a fedora 11 server which can't access the ext4 partitions on lvm logical volumes on a raid array during boot-up. the problem manifested itself after a failed preupgrade to fedora 12; however, i think the attempt at upgrading to fc12 might not have anything to do with the problem, since i last rebooted the server over 250 days ago (sometime soon after the last fedora 11 kernel update). prior to the last reboot, i had successfully rebooted many times (usually after kernel updates) without any problems. i'm pretty sure the fc12 upgrade attempt didn't touch any of the existing files, since it hung on the dependency checking of the fc12 packages. when i try to reboot into my existing fedora 11 installation, though, i get the following screen: (click for full size) a description of the server filesystem (partitions may be different sizes now due to the growing of logical volumes):
Code:
- 250GB system drive
250MB/dev/sdh1/bootext3
lvm partition rest of driveVolGroup_System
10240VolGroup_System-LogVol_root/ext4
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except he's talking about fake raid and dmraid, whereas my raid is linux software raid using mdadm. this machine is a headless server which acts as my home file, mail, and web server. it also runs mythtv with four hd tuners. i connect remotely to the server using nx or vnc to run applications directly on the server. i also run an xp professional desktop in a qemu virtual machine on the server for times when i need to use windows. so needless to say, it's a major inconvenience to have the machine down.
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Apr 1, 2009
I have Fedora Core 8 installed. I would like to reinstall it so as to get back commands that have been lost. To preserve my user data that has been stored in logical volumes, what selections should I make in the installation process? Are these selections essentially the same for Fedora Core 10?
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Jan 28, 2010
I have a system where the logical volumes are not being detected on boot and would like some guidance as to how to cure this. The box is a Proliant DL385 G5p with a pair of 146 GB mirrored disks. The mirroring is done in hardware by an HP Smart Array P400 controller. The mirrored disk (/dev/cciss/c0d0) has 4 partitions: boot, root, swap and an LVM physical volume in one volume group with several logical volumes, including /var, /home and /opt.
The OS is a 64-bit RHEL 5.3 basic install with a kernel upgrade to 2.6.18-164.6.1.el5.x86_64 (to cure a problem with bonded NICs) plus quite a few extras for stuff like Oracle, EMC PowerPath and HP's Proliant Support Pack. The basic install is OK and the box can still be rebooted OK after the kernel upgrade. However, after the other stuff goes on it fails to reboot.
The problem is that the boot fails during file system check of the logical volume file systems but the failure is due to these volumes not being found. Specifically the boot goes through the following steps:
Red Hat nash version 5.1.19.6 starting
setting clock
starting udev
loading default keymap (us)
setting hostname
No devices found <--- suspicious?
Setting up Logical Volume Management:
fsck.ext3 checks then fail with messages: No such file or directory while trying to open /dev/<volume group>/<logical volume> There are also messages about not being able to find the superblock but this is clearly due to the device itself not being found. If I boot from a rescue CD all of the logical volumes are present, with correct sizes; dmsetup shows them all to be active and I can access the files within. Fdisk also shows all the partitions to be OK and of the right type. I am therefore very sure that there is nothing wrong with the disk or logical volumes....
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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 22, 2010
I'm trying to have a LUKS encrypted partition mounted at startup and to have GDM ask for my key so it will decrypt. Now I followed [URL] to the letter. Except for now, I have it just mounted into /mnt/cryptohome so I'm not messing with my system. My problem is the one everyone mentions in the comments, ubuntu isn't asking for the LUKS key in the X display, it's asking in the first terminal (Ctrl-Alt-F1). This will not do. I need it to ask to mount my drive before I'm even asked to login, so eventually I can encrypt my /home.
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May 27, 2010
I'm having a problem auto-mounting a new luks partition. I have crypttab and fstab entries. I already have my primary encrypted partition (root) mounting at boot (from the install), but after creating this one manually, it does not open on boot. It auto-mounts when I run the following command manually after boot: sudo luksOpen /dev/disk/by-uuid/<uuid> mycrypt
/etc/crypttab entry:
personalcrypt /dev/disk/by-uuid/a1af5b7b-db58-4690-b586-b74407795e2c none luks
/etc/fstab entry:
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Mar 2, 2011
Is there a limit to the number of partitions/logical volumes you can create using the partman-auto recipes? If not, any thoughts on why my preseed using the values included below results in only a /boot partition and logical volumes root, swap, and user? Is there another way to achieve putting /, /tmp, /var, /usr, /usr_local /opt, etc on their own logical volumes with preseeding?
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Nov 8, 2009
I need to access /etc/modprobe.d on an encrypted LVM LUKS partition. I m not sure how to go about it though. Mount usually handles my mounting needs, do I need to decrypt the physical volume first? LIst of commands need would make my day.
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Aug 18, 2010
I run fedora 13 on my laptop (dual boot with Windows 7) and I just created a new partion to hold sensible data, encrypted with LUKS. I followed this tutorial for creating it.Now, everything went well and the new partition works well. But I needed something a little different from what the tutorial suggested, because I don't want the partition to be mounted on the system each time it boots, but I would (unlock and) mount it manually when I need it.
To do so I just didn't follow the Tutorial steps from 7 to 13, thinking that without the changes to crypttab and fstab the partition wouldn't be even touched by the start up process. And that's partially true: the partition isn't mapped nor mounted in the system when I boot, but the problem is that it however keeps asking for the passphrase to unlock it even if it doesn't get mounted or mapped.It just asks for it before the system loads all it's parts (udev, filesystems, etc) and I can't understand why, what it uses it for if it doesn't unlock it.So my question is: why does it ask for the passphrase to unlock luks if I haven't set crypttab and fstab to mount the partition on start up?
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Aug 30, 2010
I have encrypted a partition while installing Fedora 13, and I need to disable its automount - I will mount those manually.
But even though I commented out the corresponding line in /etc/fstab, I am still asked for the passphrase for the partition at startup.
How to completely disable this behaviour - and how to mount the partition manually afterwards?
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May 20, 2010
Anyone had any experience with unlocking a LUKS encrypted root partition via ssh? It is ok to leave /boot unencrypted.
There are a few pages from google with the debians variants, archived by putting dropbear into initrd.
I like to do that with my fedora/centos remote servers, but struggle to find any resources specific to it. Anyone has any suggestions and thoughts as to what might be a suitable way forward?
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Dec 23, 2009
I have an external 300GB (Toshiba) disk which I encrypted (using cryptsetup luksFormat) and then installed an NTFS filesystem on (need to be able to use it in both Linux and Windows - using FreeOTFE). The disk mounts fine in windows and on my Fedora 10 system it automounts.
I can manually mount it on the RHEL5.3 system, and gnome-mount gets as far as recognising that it is encrypted and asking for the key, but it doesn't then mount it - I then have to manually mount the /dev/mapper/luks... device.
Does anyone know how to do this - if it works in Fedora 10 it ought to be possible to get it to work in EL5.3 I'd have thought.
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Feb 18, 2010
There are a couple of way to mount Samba shares, but I prefer using "autofs" which can mount them on the fly. Use the autofs daemon to have shares automatically mounted on demand. The netfs service (installed by default in Fedora) is not a daemon and can only mount shares on boot, (it can't mount them on demand).
* Install the autofs package:
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yum install autofs * Edit /etc/auto.master (the master map file), and comment out all lines (with #). This avoids conflicts with the CDROM (which is handled by Gnome), etc. Save the file. * Create a new file /etc/auto.cifs, with the contents of:
Code:
#!/bin/bash
# $Id$
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Dec 16, 2008
I'm using fedora core 9 and I am a linux beginner. In my computer, I can see the icons representing windows partitions but cannot be opened. I right click on it and then opt for "mount the volume" . But there is no use. What can I do?
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Nov 25, 2010
I have done a recent install of Debian squeeze on a laptop. I set up LVM with 3 LV's, one for the root filesystem, one for /home, and another for swap. I then used lvextend to increase the size of the LV's. This additional space is shown if I enter lvdisplay (shortened for clarity):
- Logical volume -
LV Name /dev/auriga/swap
LV Size 4.66 GiB
- Logical volume -
LV Name /dev/auriga/root
LV Size 15.97 GiB
- Logical volume -
LV Name /dev/auriga/home
LV Size 169.01 GiB
However, if I use df, it still shows the previous size.
/dev/mapper/auriga-root 14G 8.0G 5.2G 61% /
/dev/sda1 221M 16M 193M 8% /boot
/dev/mapper/auriga-home 147G 421M 139G 1% /home
I have even tried restarting as well. I do not understand why df would still show that /home is 147GB, when I extended it to 169GB using lvextend. Similarly for the root, which was extended by 2GB from 14GB to 16GB.
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Jan 8, 2011
How would I go about encrypting my lvm2 logical volumes on Debian Squeeze? Is it possible without backing everything up to a different drive and restoring afterwards?
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Jun 23, 2011
I've read the first 40% of the RHEL 5 Logical Volume Manager Administrator's Guide, but still have one outstanding, burning question.
During the installation of Centos 5.6, I set up LVM physical volumes, volume groups and logical volumes. I can list these using pvdisplay, vgdisplay and lvdisplay commands.
How would I list what filesystems I have that are using my logical volumes?
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Sep 15, 2010
Are there any maximum amount of logical volumes a LVM2 volume group can contain?
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Nov 15, 2010
I upgraded aaa_elflibs as per Eric's advice here:URL..Now I can't access anything.it boots into tty1 and won't mount any of my logical volumes.
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Jan 6, 2011
I am trying to use e2label to label one of my Logical Volumes. the labeling is done successfully. but my findfs output is like this:
/dev/mapper/VolGroup00-TEST
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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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Jan 20, 2009
i cannot resize mounted lvm volumes with reiserfs by using yast like in a previous version 10.x !?
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Nov 3, 2010
I would like to ask if is it possible to boot Slackware with the installation CD when in a pinch with a system on logical volumes? For the usual fdisk partitions the procedure is known:
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boot: root=/dev/sda1 noinitrd ro or something like that. This way, the system boots with mounted basic partitions. My question is whether there is an option to achieve the same if the system is installed on logical volumes? I need to do this on a machine with dual booting Windows + Linux. The Windows needs to be reinstalled, but as is well known, the boot sector will then be overwritten. So after the Windows reinstallation I will need to boot Slackware with the installation CD and run lilo.
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Sep 9, 2009
Does everybody do major upgrades in place on production servers?Am I over-engineering by creating a new logical volume, syncing my working root volume to it and upgrading the new volume to test services? Then, after a week or 2 or 4, removing the old LV...
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Sep 11, 2011
I inherited a 3ware 9550SX running a version of gentoo with a2.6.28.something kernel. I started over with CentOS 5.6 x86_64.tw_cli informs me that the 9-disk RAID 5 is healthy.The previous admin used lvm (?) to carve up the RAID into a zilliontiny pieces and one big piece. My main interest is the big piece.Some of the small pieces refused to mount until I installed theCentOS plus kernel (they are reiserfs).The remainder seem to be ext3; however, they are not mounted at boot("refusing activation"). lvs tells me they are not active. If I try tomake one active, for example:root> lvchange -ay vg01/usrI get:Refusing activation of partial LV usr. Use --partial to override.If I use --partial, I get:Partial mode. Incomplete logical volumes will be processed.and then I can then mount the partition, but not everything seems tobe there.
Some of the directory entries look like this:?--------- ? ? ? ? ? logfilesIs it possible that the versions of the kernel and lvm that wereon the gentoo system are causing grief for an older kernel (andpossibly older lvm) on CentOS 5.6 and that I might have greaterfortunes with CentOS 6.x ?Or am I missing something fundamental? This is my first experiencewith lvm, so it's more than a little probable.
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Jul 9, 2011
So today I needed to switch from openSolaris to a viable OS on my workstation and decided to install openSUSE after having good experiences with it on my personal laptop. I ran into some problems partitioning one of the two hard disks installed on the system. I was limited on the amount of time I could spend at the office doing the install so I decided to use LVM on the one hard disk that seemed to work okay.
I picked LVM because although I don't know much at all about LVM, I at least know enough that it would allow me to expand the root and home partitions once I get the 2nd hard drive working correctly. So now that I've gotten the 2nd disk working okay, I've created two physical volumes on the 2nd drive, one to expand the root partition and one to expand the home partition. So, my question is, can I expand the root an home partitions while they are mounted or should I boot into a live CD environment before I expand the partitions? If I could expand them without booting into a different environment, that would be so great as I don't want to have to drive out to the office again before Monday. BTW, I am a new openSUSE user and an ex Ubuntu user. I loved the Ubuntu forums but had to switch because I do not agree with the direction that Ubuntu is taking.
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