SDcard /dev/sdb2 is apparently in use by the system; will not make a filesystem here

Posted by user171223 on Super User See other posts from Super User or by user171223
Published on 2013-11-12T02:47:37Z Indexed on 2013/11/12 3:59 UTC
Read the original article Hit count: 188

Filed under:

linux

|

partitioning

|

sd-card

|

software-raid

|

hardware-raid

I divided my sdcard into 2 partitions, but It got an error and couldn't create a new partition.

Error:
/dev/sdb2 is apparently in use by the system; will not make a filesystem here!

My /dev/sdb was not mounted, and the output of command lsblk was:

cxphong@cxphong:~/Desktop$ lsblk

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sr0 11:0 1 1024M 0 rom
sda 8:0 0 465.8G 0 disk
+-sda1 8:1 0 118.8G 0 part
+-sda2 8:2 0 147.7G 0 part /media/DATA
+-sda3 8:3 0 137.1G 0 part
+-sda4 8:4 0 1K 0 part
+-sda5 8:5 0 1023M 0 part [SWAP]
+-sda6 8:6 0 61.2G 0 part /
sdb 8:16 1 3.7G 0 disk
+-sdb1 8:17 1 70.6M 0 part
+-sdb2 8:18 1 3.6G 0 part
+-sdb1 (dm-0) 252:0 0 70.6M 0 part
+-sdb2 (dm-1) 252:1 0 3.6G 0 part

I couldn't delete /dev/sdb1 (dm-0) & /dev/sdb2 (dm-1). What are they?

© Super User or respective owner

Related posts about linux

apt-get install and update fail

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I've got a problem with apt-get update and apt-get install ... commands . every time update or installing fails and errors are : Get:1 http://dl.google.com stable Release.gpg [198B] Ign http://dl.google.com/linux/chrome/deb/ stable/main Translation-en_US Get:2 http://dl… >>> More
kernel module compiling error

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
sh@ubuntu:/home/ccpp/helloworld$ make gcc-4.6 -O2 -DMODULE -D_KERNEL_ -W -Wall -Wstrict-prototypes -Wmissing-prototypes -isystem /lib/modules/`uname -r`/build/include -c -o hello-1.o hello-1.c hello-1.c:4:0: warning: "MODULE" redefined [enabled by default] <command-line>:0:0: note: this is… >>> More
Build-Essentials installation failing

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am having trouble accessing the several critical header files that show to be a part of the build process. The "Ubuntu Software Center" shows "Build Essentials" as installed: Next I did the following two commands, which did not improve the problem: ~$ sudo apt-get install build-essential [sudo]… >>> More
Updating Debian kernel

as seen on Super User - Search for 'Super User'
I'm trying to update my Debian machine to 2.6.32-46 (which is the new stable). However, after doing apt-get update my apt-cache search linux-image shows me: linux-headers-2.6.32-5-486 - Header files for Linux 2.6.32-5-486 linux-headers-2.6.32-5-686-bigmem - Header files for Linux 2.6.32-5-686-bigmem linux-headers-2… >>> More
Serial connection over a single USB cable (Windows to linux, or linux to linux)

as seen on Server Fault - Search for 'Server Fault'
I'm helping out with a project for an embedded device that only has USB and no serial. This device is running Linux. These days, when we need to connect to a serial port on a device we typically use a USB to serial adapter (on something like a phone system or a load balancing device, etc). I would… >>> More

Related posts about partitioning

Partitioning Webcast Details - 17/03/2010

as seen on Oracle Blogs - Search for 'Oracle Blogs'
Hi AllHere are the details for Wednesday's (17th March 2010) webcast on Partitioning:Webcast is at http://strtc.oracle.com (IE6, 7 & 8 supported only)Conference ID for the webcast is 6168728There is no conference keyPlease use your real name in the name field (just makes it easier for us to help… >>> More
UNR Installation: Partitioning Error

as seen on Super User - Search for 'Super User'
Hi all, I have a Samsung N120 netbook (with upgraded 2GB RAM). I'm trying to install Ubuntu Netbook Remix, but when I set my partitions, I get an error. The setup I want right now is: Recovery Partition - 6 GB Windows XP Home Partition - 40 GB General Partition - remaining space UNR Partition -… >>> More
Parallelism in .NET – Part 5, Partitioning of Work

as seen on Reed Copsey - Search for 'Reed Copsey'
When parallelizing any routine, we start by decomposing the problem. Once the problem is understood, we need to break our work into separate tasks, so each task can be run on a different processing element. This process is called partitioning. Partitioning our tasks is a challenging feat… >>> More
How do I mount a "DiskSecure Multiboot" partition?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
For a hard drive that has 4 or 5 partitions, I was able to mount one of them using Ubuntu LiveCD: sudo mount /dev/sda1 /mnt but is there a way to mount to the other partitions? (if using sudo fdisk -l, it only shows /dev/sda) GParted's snapshot is: Right now, the fdisk info is as follows: ubuntu@ubuntu:~$… >>> More
Can't remove GPT data from MBR

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am having difficulty getting the Ubuntu installer (and gparted) to recognize the partitions on my MBR type disk. Other operating systems and disk tools read the disk structure and the files on it fine. I have used fixparts to write a new MBR but the issue persists. I assume the issue stems from… >>> More