Ubuntu Servers :: How To Cancel Fsck At Boot

Mar 22, 2010

Right now I am trying to fix the problems on my server with daemons not starting.

So I have to try different solutions and reboot.

The problem is that after 28 reboots, fsck kicks in and decides to check 2 TB of data.

Is there a way to cancel this???

It takes forever, and by the time it will be done, I will have forgotten what I was testing.

The issue of daemons not starting becomes even more frustrating when fsck decides that I must take a half an hour break.

So again, how do I cancel the fsck on Ubuntu Server?

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Aug 11, 2010

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Mar 24, 2010

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Jan 12, 2010

I am running 9.04 Server (standalone). It had been running fine since I installed in last autumn. Upon reboot, fsck of the root filesystem was forced and it hangs at the same point (16.5%) every time. I was able to break out somehow with cntl-alt-del but the boot was to a read-only filesystem. So I couldn't disable the forced fsck. Instead, I tried to fsck there. It started, but hung. I couldn't do e2fsck -v as it needed the device and, although I worked on UNIX systems for decades, I am not familiar with the /dev/mapper stuff.

Looking at other threads, all involving the desktop GUI Ubuntu, I tried some of the suggestions. Went into the BIOS to see what I could disable. I killed the serial port and similar. (Some said that onboard modems interfered with the checks in /dev.) I also tried to boot from my original installation disk. That does work.The suggestion is to choose "Try without any change to your computer". The problem is that is not available on the server installation, apparently only the desktop (GUI). I had install, check CD for defects, test memory, boot from first hard disk, and something like repair or recover a broken disk. I started the last of them, as it seemed to be the only option. It failed because it couldn't get a dhcp address. I could manually configure it (as it is hard addressed anyway), but I didn't want to start screwing up configurations not knowing where it was going, whayt it would ry to do, and risk losing months of hard work.

Without help, I think I will be forced to install the OS on a second drive, use that install to fsck the original filesystem on the original disk, edit the fstab (or whichever has the config) on the original disk to disable fsck, and return to the original boot.I am building this server for a nonprofit and have put in many hours writing mysql/perl apache cgi code for them as a free service and hate to lose it all and set back everything.

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Jun 13, 2010

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Sep 25, 2009

When I do a forced fsck, I would like to have a log file to look at after boot.

When I check /var/log/ there are no files there with fsck output

I've run force fsck in these ways:

shutdown -rF now

-and-

touch /forcefsck

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Apr 20, 2011

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I have fully updated f13 (as of today) on a laptop with all ext2 file systems (It has nothing but flash memory.) If it's shut down without unmounting all file systems, it drops to a shell and asks for the root password to run fsck when it's rebooted. Every key press is treated as though it were <enter>, with a response to the effect that the password is incorrect.

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Update1: On my system '/usr/libexec/gam_server' (gamin component used by xfce) prevented /home from being unmounted. I changed
Code:

[code]...

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It was fine until a few weeks ago when it started to fail.

Here is the error message :

What should I do to fix that ? I use my laptop to go on the Internet and I don't remember modifying/installing anything that could make this happen.

I found the answer : [URL] ....

I just had to type the root password and run fsck manually as follows : fsck /dev/sda7.

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Does fsck provide and logs or records of what it found?

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I was running 11.0 and it stalled in the middle of a number of updates. On reboot I now get (if I remember correctly) Error 15: File not found.I managed to get my hands on a 11.0 live cd and started trying to fix grub. However, when I try mounting the harddrive using "mount /dev/sda1" I got

Code:
can`t find sda1 in /etc/fstab or /etc/mtab
"mount /dev/sda1 /mnt" gives

[code]...

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Fsck is not check any file system which are not root file system at boot time.

Normally it run: /sbin/fsck -A -R -C -a

But this command doesn't do anything.

I've tried to strace it, and looks like this:

Code:

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Jul 22, 2010

Can anybody tell me what kind of fsck errors are found on a system?

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I have $ uname -a
Linux kub 2.6.32-5-amd64 #1 SMP Mon Mar 7 21:35:22 UTC 2011 x86_64 GNU/Linux

Most of the time when I boot my PC I get an error about fsck.ext4: Unable to resolve... I don't know why it's happening.

The problem is happening with my external drive that has 3 partitions:
/dev/sdc1
/dev/sdc3
/dev/sdc2

About 90% of the time I boot I do get the error. Sometimes after getting the error I can login and the external drive (/dev/sdc) is already mounted:
$ df -H
Filesystem             Size   Used  Avail Use% Mounted on
/dev/sda2               15G   8.0G   5.8G  58% /
tmpfs                  1.9G      0   1.9G   0% /lib/init/rw
udev                   1.9G   246k   1.9G   1% /dev
tmpfs                  1.9G   738k   1.9G   1% /dev/shm
code....

The UUID's in the error file match the output of the command blkid. And the UID's of blkid match the fstab UUID's. I don't know what to do at this point.

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