Ubuntu login takes 15 seconds, "I/O error dev fd0 sector 0"

Question

After upgrading to Ubuntu 10.04, when I first login it takes 10+ seconds where it just sits at the gdm backgroup before taking me to gnome. By switching to a terminal window during this 10 seconds I saw the error message

[   54.904480] end_request: I/O error, dev fd0, sector 0

being outputted. I assume this has to do with the floppy drive... but I don't even have a floppy drive! How do I disable this device and make this error message go away (and hopefully fix the long wait)?

Thanks.

Solution 1

Login to your system as you would normally do. Press alt+f2 . Type: sudo gedit /etc/fstab .

Here, you should see a line with /dev/fd0 . Put a # to the beginning of that line, save the file, do a reboot.

For example it looks like this:
/dev/fd0 /media/floppy0 auto rw,users,noauto 0 0

Make it look like this:
#/dev/fd0 /media/floppy0 auto rw,users,noauto 0 0

---

Let's disable the floppy then. Alt+f2 , sudo gedit /etc/modprobe.d/blacklist.conf .

Start a new line with:
blacklist floppy

Reboot.

Solution 2

I have been fideling and fooling around with that for yet rather a lang time.

A short and a long solution.

This is the short one:

• First see that your fstab file is okay, especially your swap partition.
• Than run:

sudo update-initramfs -u

and your problems should be over.

---+---

The long version written by someone else which I did not take note of. (Sorry people!)

Try:

Use blkid to determine the UUID of your swap partition, and while at it, make sure all other partitions have correct UUID's in /etc/fstab. Also can use lsblk -f to find the UUID's.

Put the correct UUID's into /etc/fstab, especially swap, for this error.

Put the correct UUID for swap into /etc/initramfs-tools/conf.d/resume.

Run sudo update-initramfs -u

Reboot. Fixed my triple boot of Stretch all with this error, as the swap file had changed.

---+---

The problem was due to my swap being encrypted. So the local-premount script in initramfs was waiting for a swap device that was not available, until it timed out. The relevant message was gave up waiting for suspend/resume device.

To disable this (as resuming from swap is not possible with an encrypted swap, and I don't use hibernation anyway), I modified this file: /etc/initramfs-tools/conf.d/resume.

In this file, a line with

RESUME=none (instead of the UUID that was here) will disable waiting for a resume device.

Run

sudo update-initramfs -u to apply the changes.

System now boots normally.

---+---

Bert.

Comments

[Jarvin]

Hmm... Tried this, and restarted, still getting the same error message. The problem is the error is happening with the device, not the mounting.

[Jarvin]

Just Blacklisting didn't work, but I did find this bug report. It had me do this echo "blacklist floppy" | sudo tee /etc/modprobe.d/blacklist-floppy.conf && sudo rmmod floppy && sudo update-initramfs -u which worked. Thanks for your help troubleshooting this!

[Apache]

You can use bootchart to check what takes so much at boot also.