Slackware :: Adding A Volume To A LUKS/LVM Setup?
Mar 21, 2010
I have been following Alien Bob's README_CRYPT.TXT on the install disk and playing around with LUKS and LVM as highlighted in the section Combining LUKS and LVM. I got this working following the examples in the readme however I now wish to add another volume to the volume group. I have got this working and extended the group with an encrypted volume so it's now bigger. I want the two included physical volumes in the volume group (which are both encrypted) to be opened on bootup.
As it is now I am prompted for a password for the first physical volume (the passwords are set to be the same) and that opens and boots the volume. It has a problem with the second PV I have added and doesn't open this. There are errors on boot up about this and pvdisplay give this:
Code:
Couldn't find device with uuid 'JVirxL-lmqH-SUym-3lXG-MnXx-Qjk8-JZRha8'.
Couldn't find device with uuid 'JVirxL-lmqH-SUym-3lXG-MnXx-Qjk8-JZRha8'.
Couldn't find device with uuid 'JVirxL-lmqH-SUym-3lXG-MnXx-Qjk8-JZRha8'.
--- Physical volume ---
PV Name /dev/block/253:0
[Code]....
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Dec 28, 2009
I have a 160GB harddrive with 2 partitions:
1. /dev/sda1 ext2 100MB (this is my /boot partition)
2. /dev/sda2 LVM2 Remaining space (this is my physical volume and is LUKS-encrypted)
There is 1 volume group, slackvg, and 3 logical volumes:
1. swap 2GB
2. root jfs 10GB
3. home jfs 50GB
I would like to shrink /dev/sda2 to make room for another regular partition, is this possible?
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Jul 6, 2015
I have install a debian jessie in my laptop, i create a lvm volume with /, /home, etc and a /boot partition outside. the i move this partition to the lvm volume and boot from it, everything it´s okay and it works.
The problem is that wen boot it ask me the passphrase to load grub, and then, when grub loads the kernel, it ask me again the passphrase.
I read that i can pass a key file to the initramfs to solve this, but where i see it, he uses mkinitcpio, and i can´´t find this package in the debian repos, it an arch package, also i tried this option [URL] ...
But it asking me the passphrase 3 times, and the third fails, the sistem starts, but i read the fail in the log.
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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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Jan 24, 2010
I'm trying to take my current windows7 (x64) setup and make it into a dual-boot setup with slackware 13.0 (x32) and am hitting a brickwall. I guess I would like to know if I can salvage the situation without formating my windows drive. I fully intend to, but I had hoped to not do it this month. I'd like to get dual boot going so I can master it and acquire all the files/drivers I'll want and then format and do it 100% right next time.
Currently I have windows setup on a 3x 500gb Raid0 onboard array which itself has been flawless. After I shrunk my current partition size to give me about 25gb of free space I proceeded to setup Linux, and I was unable to perform the cfdisk portion for partitioning the array for Linux.
I tried using cfdisk:
/dev/hdx (a1-a3,b1-b3)
/dev/sdx (a1-a3,b1-b3)
I even attempted to locate with: cat proc/partition and tried using cfdisk on every device it located. It always said it was either an unknown partition table and should I start at zero, or bad partition. I was of course too concerned over my windows setup (which has almost 1tb of stuff I have not backed up) to go any further into the unknown.
PS: I have used Slackware before, back at 8.1, 10, and even a very brief interlude at 12.0, this is my first attempt on this computer however with 13.0, it is currently running fine on my laptop and my PS3 (Laptop is even dual booting 7/Slack13. Albeit without raid)
Phenom 9850
M2N-SLI Deluxe (Nvidia AM2)
4x1gb of 1066 kingston hyperX
3x500gb WD Caviar Black Sata2 3.0
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Nov 25, 2010
I've just did a fresh Slackware 13.1 install on a 32-bit box for friends of mine. It's an older machine with an AMD Athlon XP 2500. Generally everything works just fine, with one exception, however.Connecting a LUKS encrypted USB harddisk is notified by KDE. Clicking on the device icon in Dolphin opens the dialog asking for the LUKS passphrase. No error message appears, but the file system is not opened and mounted, anyway.However, before another attempt I have to "remove" the device in Dolphin.Output of dmesg:
Code:
# Nov 25 23:58:24 mycomputer kernel: device-mapper: ioctl: unable to remove open device temporary-cryptsetup-3023
[code]....
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Mar 9, 2011
Basic Problem: I have been trying to install 13.1 (64-bit) and have not been able to get lilo to install.
Procedure:
1) partitioned drive /dev/sdc 1GB (Linux RAID) and 499GB (Linux Raid)
2) copied partitioning scheme to /dev/sdd
3) set up RAID-1 arrays md0 (sdc1-sdd1) and md1 (sdc2-sdd2)
4) write random data to partitions
5) set up LUKS on md1 (swluks)
6) set up LVM on swluks (80GB /, 375GB /home, 20GB swap)
7) ran setup, chose partitions, installed software
8) setup lilo (mbr, selected /)
9) TRIED to install lilo
[Code]..
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Dec 17, 2008
I am trying to get Slackware 12.2 running on a system with two identical harddiscs using RAID-1, LVM and LUKS.
Here is what I get:
Code:
The system is still the same, however, the results of upgrading or installing 12.2 are different. The system refuses to boot. The screen messages during boot seem to suggest, that the RAID system is "seen" by the system, but the encrypted filesystem is not.
I can boot with the installation DVD, however, and
Code:
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May 9, 2011
I just installed slackware 13.37 64 using luks and lvm by following this. However, when its time to enter the password, my usb keyboard won't work. I included the uhci-hcd, and usbhid modules when running mkinitrd,
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Mar 3, 2010
Slackware 13 Kernel 2.6.29.6 have three hard drives. Root is on own drive sda1. sdb and sdc are raid via mdadm with two partitions. one for /home raid0 md0 one for swap raid1 md1. md0 is encrypted vi cryptsetup. md1 is encrypted vi fstab. everything boots fine and is accessible. However, /dev/mapper/* shows sda1 as block device connected to the raid md0. swap crypted device is correct in /dev/mapper/*. fstab is set correctly. problem seems to be with initrd. I would like the correct device in /dev/mapper so that I can access drive info; size, available space, etc. now info shows only sda1 info
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Aug 15, 2010
So I was wondering about the dilemma of how to encrypt the password file on a key card to unlock your harddrive without having to enter any password. I came to the conclusion that that the scripts could do this without storing any passwords in plane text them self. Have a few extra steps to the scripts that would:
1. Read the UUID of any disks coming in.
2. Attempt to use that ID to decrypt a password file stored in the initrd.
3. Use the decrypted password file to unlock the the keycard partition.
4. THEN use the password files on the keycard to decrypt the main partition and boot the system.
However, if somebody stole your key card and didn't know what the unencrypted information was, then it's harmless for them to have it anyway. And if they did know, you wouldn't be any better off with it being encrypted because they probably can gain access to your computer anyway; leaving them to just pop the key card in and automatically decrypt the drive.
I suppose encrypting the keycard would give you extra assurance that the information would be much harder to recover if you destroyed the key card in a hurry. So would this extra security step even be worth it?
I guess the most secure thing would be to only have a password and type it in every time... unless you are concerned about the aliens/government stealing that from your brain which would probably mean they wouldn't need your password anyway.
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Apr 5, 2011
I have a luks-encrypted external drive with lvm on top. When I plug it in xfce prompts me (twice as usual) for the encryption phrase. Then, unlike when I have a regular file system on top and it automounts, I need to activate the volumes and manually mount. Is there a way to make these steps happen automatically?
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May 24, 2010
Anyone else experiencing the random LUKS fails? Anyone know of a solution?I filed a bugBasically I have a USB hard drive with two LUKS partitions on it (sdb2, sdb3). When plugged in, it asks for the password in Xfce (like it did in Slackware 13.0), but instead of the previous "asks twice for password" bug, now it asks once, but nothing pops up on the desktop. It's rare to see either of them put an icon on the desktop (usually nothing results).
I see /dev/mapper/luks_crypto_{UUID} get populated, so they are successfully being unlocked (LUKS), but no icon appears, and no mount point for the volume label (i.e. /media/BACKUP /media/ASUS) is populated.Does anyone know how I could produce a more useful bug report? I'm wondering if "strace startxfce" would produce anything useful or if I should alias Thunar to "strace -o /tmp/thunar-`date`.txt" would be in order.
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Oct 29, 2009
How can I get a LUKS encrypted partition on an external USB device automounted with r/w access for non-privileged users?
Background:
I just reformatted an external USB device with ext4. The only partition is LUKS encrypted. Now, when I plug the device to my computer, KDE notifies me and asks me to enter the LUKS passphrase. Then it mounts the device. Little snag here: Non-privileged users have read-only access.
My user is a member of group plugdev, but not of group disk, as this was discouraged several times, e. g. by Robby Workman. With non-encrypted disks regular users have read/write access, or can change the filemodes accordingly, as far as I recall (currently I have no more non-encrypted disks left to verify it...)
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Feb 7, 2011
I plan to install a server using LVM. I thought a partition schema where /boot would be in an ext4 partition while / /usr /var /home and /opt would be in the LVM. My question is: if I'm putting / into the LVM, is it necessary to divide /usr /var /home and /opt into different logical volumes? If I divide them, would it become harder to maintain when new disk space has to be added to the volume group?
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Aug 3, 2009
I have a CentOS 5 server with a 250gb hard drive running close to the maximum space on one of the partitions. 87% of 200gb (/home), roughly. I have a second 250gb hard drive which is completely unused. I just recently did some searching through the forums here and found out about LVM and wanted to implement it. Although the downside is I believe it has to wipe a drive/partition before it can add it as a logical volume.
The process I'm considering following is:
1. add this empty 250gb (SDB) secondary hard drive as a logical volume on LVM and copy everything over from the currently filling up partition on my main hard drive.
2. have LVM add in the old partition on the primary hard drive (SDA)
3. extend my logical volume out to include the old partition. Extending my total hard drive space out to 450gb.
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Mar 22, 2011
after update to slackware current 4 days ago i cant get sound working in wine in starcraf 2 i mean i got sound in instalation but not in game and i get error when i wanna configure sound in winecfg
err:alsa:ALSA_CheckSetVolume Could not find '{PCM,Line} Playback Volume' element
err:alsa:ALSA_CheckSetVolume Could not find '{PCM,Line} Playback Volume' element
err:alsa:wine_snd_pcm_recover underrun occurred
err:alsa:wine_snd_pcm_recover underrun occurred
in game i dont got that error but sound dont work btw my sound card is asus xonar essence stx
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Apr 9, 2011
I boot my slackware through usb and I don't install lilo. I want to add slackware to fedora grub.conf.I have tried some methods,but failed. How can I do? fedora grub.conf
Quote:
title Fedora (2.6.35.10-72.fc14.x86_64)
root (hd0,5)
kernel /vmlinuz-2.6.35.10-72.fc14.x86_64 ro root=UUID=5cc13bf9-725f-
[cod3e]....
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Mar 27, 2010
I'm running Karmic Server with GRUB2 on a Dell XPS 420. Everything was running fine until I changed 2 BIOS settings in an attempt to make my Virtual Box guests run faster. I turned on SpeedStep and Virtualization, rebooted, and I was slapped in the face with a grub error 15. I can't, in my wildest dreams, imagine how these two settings could cause a problem for GRUB, but they have. To make matters worse, I've set my server up to use Luks encrypted LVMs on soft-RAID. From what I can gather, it seems my only hope is to reinstall GRUB. So, I've tried to follow the Live CD instructions outlined in the following article (adding the necessary steps to mount my RAID volumes and LVMs). [URL]
If I try mounting the root lvm as 'dev/vg-root' on /mnt and the boot partition as 'dev/md0' on /mnt/boot, when I try to run the command $sudo grub-install --root-directory=/mnt/ /dev/md0, I get an errors: grub-setup: warn: Attempting to install GRUB to a partition instead of the MBR. This is a BAD idea. grub-setup: error: Embedding is not possible, but this is required when the root device is on a RAID array or LVM volume.
Somewhere in my troubleshooting, I also tried mounting the root lvm as 'dev/mapper/vg-root'. This results in the grub-install error: $sudo grub-install --root-directory=/mnt/ /dev/md0 Invalid device 'dev/md0'
Obviously, neither case fixes the problem. I've been searching and troubleshooting for several hours this evening, and I must have my system operational by Monday morning. That means if I don't have a solution by pretty early tomorrow morning...I'm screwed. A full rebuild will by my only option.
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Dec 22, 2010
I'm asking for an advice about the setup of a large volume: I have 2 disks of 1 Tb each and I want to merge them in a single volume/partition. I am in doubt about setting up a LVM, a RAID0 device or both. I know that RAID0 has no redundancy but I will manage a backup on other media, so that I can take advantage of the stripe feature in terms of I/O performance. On the other hand LVM let me to easily manage and expand the volume in a near future. Am I correct? Anyway I don't know if I can ever setup both and in which order. First LVM then RAID, I suppose.
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Sep 11, 2010
i have OpenSuse 11.3 setup in my home running Easy-LTSP to my 3 kids machines, is it possible to change the LTSP machines to Wifi, I am getting sick of running ethernet cables through my house.
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Jul 17, 2010
I am currently booting 4 flavors of Linux - Ubuntu 10.04, Xubuntu 10.04, Linux Mint 9 KDE RC and Linux Mint 9 Gnome. There is so little difference between Ubuntu Gnome with the right packages installed and Linux Mint 9 it is redundant and I would like to replace it with Fedora 13 and try that out for a while. I understand that Fedora still uses a legacy Grub while the others are all using Grub2. I also understand that the two bootloaders do not get along. Is there a way to do that? How? If I have Fedora install its legacy Grub to the Fedora partition will Grub2 see Fedora and update itself properly? I'm open to starting clean if that would simplify things.
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Oct 22, 2009
Fedora 11. I am trying to setup kickstart so it lays out a mirrored volume group. I have 2 disks sda and sdb. I want a primary partition on each disk 200mb in size for /boot. This is to be mirrored onto raid device md0 (raid 1). The rest of each disk is to be setup partition which grows to use the remaining space, and is also mirrored (raid 1) md1. Onto md1, I want an LVM volume group called rootvg, and logical volumes set up on there for /, /home, /usr, /tmp etc. I can lay this out manually, and it works fine. However, the code below, which is slightly amended from a previous anaconda-ks.cfg file doesn't work.
Code:
clearpart --linux --drives=sda,sdb --initlabel
part raid.11 --asprimary --size=200 --ondisk=sda
part raid.12 --grow --size=1 --ondisk=sda
part raid.21 --asprimary --size=200 --ondisk=sdb
part raid.22 --grow --size=1 --ondisk=sdb
raid /boot --fstype=ext3 --level=RAID1 --device=md0 raid.11 raid.21
raid pv.1 --level=1 --device=md1 raid.12 raid.22
volgroup rootvg --pesize=32768 pv.1
logvol / --fstype=ext4 --name=rootlv01 --vgname=rootvg --size=512
logvol /home --fstype=ext4 --name=rootlv02 --vgname=rootvg --size=256
logvol /tmp --fstype=ext4 --name=rootlv03 --vgname=rootvg --size=128
logvol /usr --fstype=ext4 --name=rootlv04 --vgname=rootvg --size=3072
logvol /var --fstype=ext4 --name=rootlv05 --vgname=rootvg --size=1024
logvol /opt --fstype=ext4 --name=rootlv06 --vgname=rootvg --size=1024
logvol swap --name=LogVol06 --vgname=rootvg --size=1024
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Oct 21, 2010
I am very new to LVM, as well as not especially experienced at linux, and have some questions about how lvm works. A few months back I set up a server running FC10 and tried creating Logical Groups during the the initial setup. We've realized that we are not using all the available space on the physical drive, and I realized that for some reason (I'm thinking this might have been the default?), we initially created two Logical Groups (VolGroup00 and VolGroup01) and it appears two Logical volumes in each (LogVol00 and LogVol01). LogVol00 in VolGroup00 is mapped to /, and the other Group was actually unused. I figure that it would be simplest to just use all this space mapped to /, so I thought the thing to do would be to simply merge VolGroup01 to VolGroup00. I tried this:
[root@office mapper]# vgmerge VolGroup00 VolGroup01
Logical volumes in "VolGroup01" must be inactive
So after a bit of research, I tried this:
[root@office mapper]# vgchange -a n VolGroup01
Can't deactivate volume group "VolGroup01" with 1 open logical volume(s)
So apparently There's an open volume, but I don't know how to go about closing it. I removed the LogVol00 from that group, but LogVol01 won't budge.
[root@office mapper]# lvremove VolGroup01
Can't remove open logical volume "LogVol01"
So how do I go about closing this Volume? At one point, there was some output that told me LogVol01 was being used as swap space. How do I handle that?
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Jul 1, 2011
I'm an experienced PC technician running a slackware 13.1 distro on a server at home. I've currently got 2x 1TB drives in the box allocated as raid1 for the OS and everything I want to run on the machine. I'd like to think my question/needs are fairly straight forward, I am buying 2x 2TB drives to add to this machine as it serves as a NAS box for one of its roles. I'd like these in raid0 as the data that would be going on it is not that important to me. The question is, after adding the new drives to the system, once I boot up, what do I need to do to the system to get the drives added and working sucessfully as a single raid0 volume that I can then samba share out to my network. To clarify, I understand a little of mdadm as I've used it to raid1 my existing setup when I installed, and I'm fine with the samba bit after.
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May 25, 2010
How to add new icons on xfce. i tried adding icons to my ~/.icons/<folder_name> then run this command
Code:
But it still doesn't appear in the icons selection.
I downloaded the icons in [url].
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Jun 9, 2010
I've installed 13.1 and the new GSB. I like it a lot (better than old versions), but the volume applet doesn't work.I did some reading and apparently this is due to a conflict between the GNOME people and the Pulse Audio people. So I was wondering if it was at all possible to use the xfce volume applet.
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Feb 18, 2010
Newbie slackware user here, I'm having some issues getting keyboard volume control to work properly.I recently fixed my network adapter problem and I managed to get flash player installed despite my minimal knowledge of linux and slackware, but there's yet another small glitch that I can't fix.When I'm logged in as root, keyboard volume controls work perfectly, mute mutes the audio + increases the percentage, - decreases the percentage, etc.However, when I'm logged in as another user and I try to use keyboard volume controls, the bar will pop up in the middle of the screen, but it will be stuck at 0% no matter that I do. (Sound still plays though, it seems that volume is at 100% while the bar in the middle reads 0%).
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May 28, 2010
No, not Arnold S.I'm talking about the one from slackbuilds.org. It's not just another terminal emulator. It's got a cool feature of broadcasting the input to all (or selected windows). If it's a well known and used feature, than I'm sorry. I read about it a couple of days ago and soon it proved a big time-saver.
As all my systems are almost identical (selection of software, /home/ directory structure, program configuration, etc) I used terminator to set up my new shiny Slackware64 13.1 systems.The 'broadcast' function of terminator mirrors your input to other terminator windows (ssh sessions to other machines). That way I didn't have to configure it three times on three computers. I know that one can write a script to automate most of things, but sometimes there are interactive steps which would not work in a script.
It was especially useful in:
1. using sbopkg (3 simultaneous instances doing exactly the same thing on different systems )
2. general configuration
3. setting up bookmarks in emacs
4. Creating some scripts that aren't there by default (eg. /etc/rc.d/rc.local_shutdown)
I can imagine how useful it can be for administering a number of machines.
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Apr 14, 2011
Just installed 13.1 64bit on my laptop. In an effort to keep things slim, I neglected to install the 'D' group....didn't figure I would be doing any developing (call me a literalist). I install Wicd and find that Python is a dependency. What is the easiest way for me to make this happen? Should I just install the python txz or will there be more dependencies that could be solved easier with a script?
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