Slackware :: Cannot Mount Dev/mapper/crypted-drive?
Feb 18, 2010
Well as you can see from my sig I am running Slack 13 and unfortunately did not discover the readme_crypt.txt on the installation cd until it was far too late. Not to worry, many hours burned and things learned.So I compiled and installed cryptsetup and for my test encryption I am using an external usb harddrive (sdb3).First off cryptsetup kept segfaulting with the luksFormat command and this seems to be a know bug. The workaround it to pass USE="dynamic" to config before you build the package. Then
Code:
# cryptsetup.dynamic -h sha512 --verify-passphrase luksFormat /dev/sdb3 test-crypt
# cryptsetup luksOpen /dev/sdb3
[code]....
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Jan 23, 2011
We had this problem a while back but it went away with whatever updates lvm/cryptsetup have been through, but it's back again as of the latest update. Instead of symlinks to the /dev/dm-* devices, lvm and cryptsetup are both creating duplicate device nodes under /dev/mapper for already existing devices.
e.g.
Code:
gazl@slack:~$ ls -l /dev/mapper
total 0
crw------- 1 root root 10, 61 Jan 23 16:48 control
brw-rw-r-- 1 root disk 253, 0 Jan 23 16:48 lukssda5
brw-rw-r-- 1 root disk 253, 9 Jan 23 16:48 rootvg-lvhome
[Code]...
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Aug 27, 2010
I installed NFS and portmap for export a folder to another PC. /usr/local. ftp is server's hostname and ws01 is client's hostname. I edited file /etc/exports with next text: /usr/local ws01(rw,root_squash) *(ro)
I restarted service portmap and nfs. From client, I try check connection with server with command: showmount -e ftp and result is: mount clntudp_create: RPC: Port mapper failure - RPC: Unable to receive
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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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Jan 24, 2011
I've encrypted the /home partition. I've been successful in doing this by following the instructions here:slackware64-current/README_CRYPT.TXTBut after upgrade to cryptsetup-1.2.0-x86_64, when I boot up I get 'no such file or directory while trying to open /dev/mapper/crypthome'I have to manually type 'cryptsetup luksOpen /dev/sda9 crypthome' and mount each time to get into the encrypted partition.I expect to be prompted for the password on boot but I just get that error, what is wrong?my config files:
/etc/crypttab:
crypthome /dev/sda9
/etc/fstab:
[code]....
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Mar 9, 2011
Ive got an old hard drive with slack on it but I lost the root password. I booted up with the slack install disk but I dont remember how to mount the drive so I can see whats on it. Ive tried to mount it with things like mount /dev/hda and mount /dev/sda and others with no luck.
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Jul 14, 2010
A few months ago I have setup a server with three hard disks. The partition mapping the disks as follows:
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x7ca36fee
[code]....
Now I have the following problem the LVM file system don't mount properly.If I open the mount point I see only a few files of the LVM disk. If I want to unmount the disk I get the following error:
umount /data/
umount: /data/: not mounted
If I want to mount the volume I get the following error:
mount -a
mount: /dev/mapper/gegevens-Data already mounted or /data busy
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Aug 22, 2010
I always have a problem in simple user mode when I insert a USB key. Can't mount, can't open with file manager. I'm obliged to open a simultaneous root session, to do what I want to manage the usb key.
In my user manager, I don't know wich group I have to add to this simple user (it's me) so I am allowed to manage the usb key.
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Mar 13, 2009
I'd setup my new notebook letting auto-crypt swap and temp - temp for /tmp and /var/tmp - using /etc/crypttab. So I made into cryptab following:
swap /dev/sda6 /dev/urandom swap,cipher=aes-cbc-essiv:sha256
tmp /dev/sda7 /dev/urandom tmp,cipher=aes-cbc-essiv:sha256
vtmp /dev/sda9 /dev/urandom tmp,cipher=aes-cbc-essiv:sha256
[code]....
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Jun 7, 2011
I have an encrypted volume, which contains LVM volume group with volumes. I have unencrypted /boot and the rest is on that encrypted lvm. I have a backup I want to revert to, but that backup has a different kernel, and I don't know how to update the /boot since I have suspicions that the system won't boot if I just restore / . I think I need to run update-initramfs and grub-install at some point..
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Apr 4, 2011
How to change the passphrase for crypted partitions in F14?
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Dec 22, 2010
After upgrade from 10.04 to 10.10 I can't mount anymore my crypted disk image.I've an old backup of this image, but when I try to mount it, system give me same errors.
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May 5, 2011
How do I configure my Debian installation to mount external USB drives to mount points based on the volume names of the drives? For instance, if I have a thumb drive with the volume name of "SWORDFISH," how do I have Linux mount it at /media/SWORDFISH? I'm aware that this can be setup in FSTAB, but that requires that I know the UUID of the device beforehand and that I take the time to set each external device up in FSTAB first. That does nothing for me when I have a thumb drive that has never been plugged into my computer before.
This seems to be setup by default in Ubuntu/Kubuntu, but is not working for me with a fresh installation of Debian Squeeze and KDE4. I've spent the past 2 hours Googling for a solution and have turned up nothing. UPDATE: My results are inconsistent. Sometimes Debian mounts devices to mount points based on the volume names, and other times it gives them generic mount points (e.g. /media/usb1).
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Feb 6, 2010
I run a headless Ubuntu 8.04 server, which acts as a web, email and file server. I am sticking with 8.04 as it is a LTS release and will upgrade to the next LTS when it is released.
I have two external USB drives, that I need to mount at boot. I have been using /etc/fstab up until now, with the following entries:
Code:
However, as I gather from doing searches is quite common, occasionally I get an error during boot (causing the system to drop to a recovery shell) because the USB drives take time to wake up and the system hasn't found them by the time it reads /etc/fstab.
From doing searches, it seems there is nothing you can do to fstab to fix this, so you need to mount them using an rc.local script instead, using:
Code:
The problem is, as I have two USB drives, their /dev/sdxx location changes between boots. I thus want to use UUID codes as I do in fstab, however I haven't found anything about this.
Does anyone know how I can use the mount command and UUID to mount a drive in rc.local and what options I have to use the mount the drive with the same options that I am using in my fstab entry? Obvisouly, I can't refer back to fstab using the mount command, because then I will still get the boot error issue if they are listed in fstab. And there is no space internally for the USB drives as there is already two internal drives.
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Oct 4, 2010
Not able to mount windows drive & foder, in linux. i have got following error.
mount error 92 = Protocol not available
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Jul 19, 2010
I have servers installed with RHEL 4 2.6.9-89.0.9 ELsmp. I tried using uuid and label in /etc/fstab to automount usb drives to mountpoints that I specify after reboot. Unfortunately, it just does not work in all my RHEL4 servers. After every reboot, /etc/fstab will be automatically modified and all configurations related to my USB drives will be changed. Irregardless of whether i use UUID or LABEL in my /etc/fstab.However, it works on RHEL5. But, upgrading is not an option in my environment. I have been googling around looking for alternatives but everything seems to point back to using UUID or LABEL in /etc/fstab. Anyone has tried something that works? Please help me, thank you.
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Aug 5, 2010
I have 2 internal drives. One is for the OS and one is for the Data. I tried to get the Data drive to mount automatically at login using some crap I found on a linux blog. Safe to say it didn't work and now I can't mount it with the OS on the OS Drive.
It mounts from a live CD and all the data is perfectly safe. When I try to mount the drive I get this error message: "Error mounting: mount exited with exit code 1: helper failed with: mount: only root can mount /dev/sdb1 on /media/data" What have I done wrong and how can I make it mount again? Preferably this time at login.
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May 25, 2010
I have been trying to share folders from my main PC which is running Ubuntu 10.04. I have been able to figure out Samba enough to get my a couple of folders shared, but I have been unable to share any folders which are on my external harddrive. After entering the path in my smb.conf file they appear on the network but I am unable to navigate to them. When trying to navigate to them through the network folder on the pc they are actually connected to I get an "Unable to mount location: Failed to mount windows share" dialog box. On the windows pc I am trying to share with I get, "Windows cannot acces \Josh-Desktop
ame of folder"
My smb.conf file looks like this:
That folders I cannot access are Music and Videos.
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Sep 17, 2010
Its annoying to unmount my flash drive twice.. its not a major problem actually but its kinda annoying , its whenever i plug-in my flash drive.. everything works well except when i need to un-mount it.. I usually unmount it twice using right-click of the mouse, then it mounts itself back, so i have to unmount it again.. Is there any way to control this? How do i setup the auto-mount option for USB flash drives?
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Aug 2, 2010
I was trying to figure out how to get my network drive to mount as a local drive on my computer. This was back on 9.10. Since I've upgraded to 10.04, my boot process halts and tells me (paraphrasing) /shared is not ready to mount. To continue, pres S to skip or M to manually mount the drive.
Well, I have it mounting now through GVFS and I don't need this in my startup anymore. Frankly, it's just annoying that it won't boot into Ubuntu right away. So, what's the startup file I need to edit to remove the attempt to mount the network drive?
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Jun 12, 2011
no entries exist in the /dev folder for hdc,cdrom,dvd, or any other drive or drive type than hda. The only other similar device is sg0 which doesn't work either. I have tried every variation of mount I can find with every available drive and drive type and nothing works, but this is the drive I installed FC14 with, and it installed perfectly (except for forgetting where it came from!!)Do I have to install a module or recompile the kernel just to get linux to recognize the drive it came from?
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Jan 19, 2011
I have just installed Xubuntu and suprisingly it did not ask me to create a partition within its installer like Ubuntu does. So now, I am left with 150mb of free space. I want to expand that amount. The problem is, I do not know where it has been installed on. I have a C and an E drive. Currently, the C drive is mounted and the E drive will not mount even if i press the mount button. Does anyone have a solution?
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Dec 25, 2010
I have a problem in my ubuntu 10.01 that it can't load a drive/volume in ubuntu. When I tried, it said: "Unable to mount location Error mounting: mount: /dev/sda1: can't read superblock". And when I boot my pc with 'Windows', it said : "UNMOUNTABLE_BOOT_VOLUME" under a blue screen. What can I do to solve this problem?
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Jun 23, 2011
Dell PowerEdge R610 with QLogic HBA card connected to HP EVA6000 SAN through a pair of switches.When I present space to the server, device mapper doesn't see it unless I restart the multipathd service. Same thing with unpresenting - the /dev/mapper/mpatha does not go away unless I restart multipathd.Here's what it looks like in 'multipath -ll' before and after I unpresent the LUN (without restarting multipathd)...
== BEFORE ==
# multipath -ll
mpathb (3600508b40010716b0000900001a40000) dm-8 HP,HSV200
[code]....
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Mar 31, 2011
I am using Centos 5.5. I have a luks partition that I can successfully open and mount manually. But the problem is upon boot up, the device is missing from /dev/mapper/device_name until I manually luksOpen it..then it appears as it has before. This makes it a problem for me to have it open and mounted automatically upon boot up. Why is the /dev/mapper/device_name missing untill I manually luksOpen it?
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Sep 28, 2009
I am using CentOS 5.2. I am installing from disc on a machine with Intel Embedded Server Raid Technology. It has two 500 GB SATA drives. During the initial boot process, it sees that these two devices exist. However, after getting into the screen to partition and configure RAID, it just shows this:
Drive /dev/mapper/ddf1_MegaSR R! #0 (475879 MB) (Model: Linux device-mapper)
I want to do a RAID1 so that the disks are mirrored. However, I would expect to see both drives listed. I can select RAID to create RAID partitions, but I think I need to be able to see both drives in order to do this correctly.
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Aug 3, 2010
im facing problem in mailserver which gives me insufficient space error, when i see details it showAug 3 12:10:02 3dserver zimbramon[17013]: 17013:crit: Disk warning: 3dserver.3dbp.in /dev/mapper/ddf1_3draidp1 at 93%how can i set the frequency on mail threshold warning which is at 10 minutes.
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Feb 4, 2010
I am trying to setup a H/W RAID-1 matrix but I am unsuccessful. I am trying to get partitions installed as /dev/md0, /dev/md1 but it keeps going for /dev/mapper/isw...The reason is that I have R1Soft backup and it needs to hook the partitions as seen in /proc/partitions from /dev not /dev/mapper/isw. I have tried to boot the installation with various options but nothing!
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Feb 14, 2010
It's not a Slackware-specific question, but I figured someone here might have some insight. Basically what I've got is a 120 GiB drive I was using to boot Slackware. I then mounted a third hard drive inside of my PC (500 GiB) that I wanted to clone the Slackware image onto. But I don't want this drive to be solely used for Slackware so I partitioned off about a 250 GiB chunk for it. Using gddrescue I cloned the image. It booted fine and everything looked good other than Slackware still only seems to think it's got 120 GiB to work with. My question is how can I make it recognize the full 250 GiB, or how can I go a different route to utilize the extra space? Is there some way I can just clone it directly and then go about resizing it afterwards? The first thing I tried was to clone it directly and then attempt to resize it afterwards.However, GParted wouldn't seem to let me resize it so I went this other route of setting up the partitions beforehand.
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May 15, 2011
i downloaded slackware iso (4.3 gigs, i thought it would be smaller) and then when i tried to burn to dvd it give me read sector error when i tried to verify. i tried this with 5 dvd and none worked so something is probably wrong with the iso itself. is there another way to get slackware to install with a usb flash drive or should i just redownload my iso (10 hour download =( ).
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