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How to disable “device mapper” warnings in fedora

Mine is an x86 based embedded platform.. Running completely out of NFS. I recently ported fc23 onto it... But been getting this warning message every time I give the reboot command.. [ OK ] Stopped ...
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1answer
42 views

Assuming you can't directly boot into a linux system, how do you make the bootstrap?

What are the actual steps, assuming you had a set of c header files that described the memory mapped devices in your system, to make the initial running kernel? I know everyone just boots off a live ...
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14 views

Device Mapper partitions on RHEL

I've 2 HP Proliant DL 380 Gen8 servers. RHEL 5.10 is running on them. The servers are in cluster. In my cluster configuration I've defined my clustered services to be mounting on partitions defined on ...
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1answer
345 views

How can I fix my rt (right trigger) bottom on pso2 (Phantasy Star Online 2)

What happened was I was starting up pso2 and everything went okay EXCEPT for one thing. When I tried to get my items in my inventory, it highlighted everything and I can't get the item that I want. ...
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22 views

How can I force delete a faulty drive from the Linux device mapper?

I have a faulty HDD which sometimes fails to spin up. It doesn't contain anything important, just my home directory and some multimedia files, so I don't care if the filesystem crashes. However, it's ...
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63 views

Docker set disc quota

I see, that there is no built in solution to control disc usage of containers in Docker. I'm searching for some 3rd party solutions. I have found a Device mapper plugin, that maybe can do the trick, ...
0
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1answer
167 views

%T specifier in printf option of `stat` command

I want to know what is %T specifier in stat printf option and how it gets the file descriptor value ie., fd,1 is printed by using the below command. command is $> echo `stat -L /dev/mapper/...
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38 views

How to disable creating device nodes of ldm disks in ubuntu?

Yesterday I've installed ubuntu 14.04 to my mother's home computer. That's really good deal, but she uses windows too to work with documents. This documents is placed on the Windows dynamic disks in ...
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1answer
117 views

How can I export a /dev/mapper mounted filesystem via NFS?

I have a server "pr-cl-n1" that mounts /usr via /dev/mapper like this: # mount [...] /dev/mapper/pr--cl--n1-usr on /usr type ext3 (rw,relatime,errors=continue,barrier=1,data=ordered) The root of ...
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0answers
111 views

Can I make a encrypted image by using openssl encrypt tools instead of dmsetup?

Generally, I can create a encrypted ext4 image by do this: fallocate -l 6553600 encrypt.img losetup -f encrypt.img dmsetup create encrypt_disk --table "0 12800 crypt aes 32BYTEKEY 0 /dev/loop0 0" ...
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1answer
416 views

dmsetup status fields explained?

I am not new to linux, but I am new to the underlying guts of it, and I don't know anything about LVM or device-mapper. I'm trying to troubleshoot a livecd mounting its live-rw (dm-0) file system as ...
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2answers
48 views

Is there an easy way to retrieve the link speed of network devices?

We have a mix of 100 and 1000mbps cabling in this office with cabling that ranges from ancient home-made cat5 to brand new cat6, and a mish-mash of semi-accessible switches and network segments that ...
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105 views

Why do loop devices sometimes refuse to go away?

I regularly mount the partitions inside an image file as loop devices: sudo kpartx -a test.img That creates loop devices such as /dev/mapper/loop0p1 /dev/mapper/loop0p2 When I'm done, I get rid ...
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1answer
36 views

Regard a folder as a normal USB stick storage

In Ubuntu, it is known that one can install a Ubuntu iso file to a USB stick using the below command: dd if=./Ubuntu.iso of=/dev/sdb where /mnt/sdb refers to a USB stick plugged to a Linux machine. ...
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1answer
446 views

How to Create Virtual Block Devices

I want to create multiple virtual block devices like /dev/sda and then use them to create an md device for test purpose. I have mounted my root filesystem on /dev/sda1 and don't have extra space to ...
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2answers
734 views

Any way to make partitioning tools see kpartx-created devices?

I have a dd'ed disk image file with me. I can use a tool like kpartx to create a device-mapper device from this disk image file. But partitioning programs like gparted and fdisk don't list my ...
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1answer
47 views

How to autodetect device name in Linux

I have an encrypted USB dongue with cryptosetup, to mount it I have to execute a script that has hardcoded (or admits it as a parameter) the device name of that dongue that previously you had to ...
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729 views

Udev rule for changing owner of Linux LVM device nodes

I'm having some trouble changing the owner of a Linux LVM logical volume on my Debian wheezy system. I added the following udev rule to both the initramfs and the real root file system: SUBSYSTEM=="...
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0answers
422 views

Moxa - NPort 5110 as HTTP Server or similar

I have a NPort 5110 Serial Device Server connecting our Automation Control Box to the LAN so we can communicate with it from a non-local pc via mapped com port. (if you are unfamiliar with the device ...
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4answers
6k views

TRIM support via dm-crypt/device-mapper

Getting a new laptop with SSD tomorrow. I need to know about the current status of dm-crypt and TRIM. I have seen several conflicting reports and most activity around this question seems to be > 1 ...
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0answers
181 views

How to mount USB disk with LVM/LUKS crypted volumes on a Mac? [duplicate]

Possible Duplicate: How to mount an encrypted ext3 filesystem under OS X? I have a USB disk that I've partitioned with LVM and encrypted some of the volumes with LUKS. This is all Linux/...
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6answers
83 views

Is there some utility that will allow me to see all devices physically connected to my laptop, regardless of whether they have a driver or not?

Upgraded Vista to 7 last day and my wireless laptop adapter is behaving funny. First it was killing me with resource conflict issues, but I just did a fresh Win 7 installation and the thing just does ...
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0answers
700 views

How to disable Device mapper package from kickstart?

Can anyone tell me how to disable/exclude Device mapper package from kickstart file.