Buffer I/O error on device fd0, logical block 0 error and simply soultion

by Vivek Gite on July 10, 2007 · 11 comments

Q. I’ve CentOS 5 server running on Dell hardware. I’m getting following error message in my /var/log/message file (some time message is also shown on console):

Jul 05 12:04:05 dell01 kernel: end_request: I/O error, dev fd0, sector 0
Jul 05 12:04:05 dell01 kernel: Buffer I/O error on device fd0, logical block 0
Jul 05 12:04:18 dell01 kernel: end_request: I/O error, dev fd0, sector 0
Jul 05 12:04:18 dell01 kernel: Buffer I/O error on device fd0, logical block 0
Jul 05 12:04:30 dell01 kernel: end_request: I/O error, dev fd0, sector 0
Jul 05 12:04:42 dell01 kernel: end_request: I/O error, dev fd0, sector 0

What do they mean? How do I fix this problem?

A. This message appears when you don’t have a floppy drive attached to Linux server. Solution is quite simple just disable driver for floppy and reboot the system. You can verify this with the following command (this solution works with RHEL, CentOS, Redhat, Ubuntu/Debian and other Linux distros) :
# lsmod | grep -i floppy
Output:

floppy                 95465  0

Open file called /etc/modprobe.d/blacklist:
# vi /etc/modprobe.d/blacklist
Listing a module (driver name) in this file prevents the hotplug scripts from loading it. Usually that'd be so that some other driver will bind it instead,
no matter which driver happens to get probed first. Sometimes user mode tools can also control driver binding. Append following line:
blacklist floppy
Save and close the file. Now reboot the Linux server:
# reboot

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{ 11 comments… read them below or add one }

1 SW January 19, 2008

Thanks for the helpful info! I ran into this issue and your solution does seem to fix it!

Reply

2 Vadim February 17, 2008

thanks for info. it is also possible to do:
sudo modprobe -r floppy
so there will be no need to reboot

Reply

3 Aaron February 18, 2008

where do u do the lsmod | grep -i floppy thing?

Reply

4 doez March 23, 2008

thank’s

Reply

5 treez March 28, 2009

Aaron, you have to put this into your terminal or console, e.g. by going with Ctrl-Alt-F1 into the first TTY (TTY1). Enter user and password and su to root. There you go. Now you are ready to insert these commands and everything works as expected… :)

Reply

6 asd June 7, 2009

thanks :)

Reply

7 anon October 30, 2009

you may also comment out the line (fd0) in /boot/grub/device.map file.

Reply

8 pABLO March 13, 2010

Hi, can somebody tell me step by step what should I do? Im not so into computer system. I already disable floppy, Im not getting the same error anymore, but it doesnt go anywhre. It send me to a busybox 3.1 screen, but I dont know what am I supposed to write iin order to make it finish the intallation. Thanks in advance. I have windows vista and Im trying to intall UBUNTU

Reply

9 Steff May 7, 2010

Type it in Terminal? When I paste ”blacklist floppy” it says ”cklist floppy”. Could you please be more specific?

Reply

10 ag February 9, 2011

Thanks for the tip. I was having these messages for a long time and with a quick look have found the solution in your web.

Reply

11 NoahY July 11, 2011

These commands work in the terminal:

sudo su
echo -e ‘\nblacklist floppy’ >> /etc/modprobe.d/blacklist.conf
exit

Reply

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