HowTo: Change disk checking/fsck at boot frequency

[dannyman]

I boiled this down into a "universal" command:

sudo tune2fs -c 0 `mount | awk '$3 == "/" {print $1}'`

I posted further explanation on my web site:
http://dannyman.toldme.com/2008/11/19/e2fsck-frog-off/

[yangeryanger]

hi. i run a home server running 24/7 day and night and data is always moving from one hdd to another or some sorts.. is there a way to make it fsck more often? should i just lower the number in the sudo tune2fs -c 50 /dev/hda1 to sudo tune2fs -c 2 /dev/hda1 or something?

oh, edit: i'm using ext3 on the main boot, and on my other drives, jfs...

thanks guys.

[bodhi.zazen]

Well, you should not need to run it any more often, especially if you are moving files like that.

Also fsck should not be run on a mounted partition, so it runs at boot.

You should be able to run fsck at next boot if you like :

http://www.cyberciti.biz/faq/linux-f...boot-sequence/

[wamukota]

I boiled this down into a "universal" command:

sudo tune2fs -c 0 `mount | awk '$3 == "/" {print $1}'`

I don't use the 'c' (for count) between checks, but the 'i' (for interval).

So to set the interval every 2 weeks the command becomes:

sudo tune2fs -i 2w `mount | awk '$3 == "/" {print $1}'`

Every 10 days becomes

sudo tune2fs -i 10d `mount | awk '$3 == "/" {print $1}'`

Every 3 months becomes

sudo tune2fs -i 3m `mount | awk '$3 == "/" {print $1}'`

Using the interval allows you to predict more or less when the check will take place (ie every sunday, if you run the command on a sunday with an interval of 7 days)

[ciderpunx]

Is there any way to tie into the mechanism that counts the boots and run a little program that says "you're going to have a forced check three boots from now"? Maybe a log file that tells how may boots are left, which could be grepped?

Using the solutions already suggested you can do something like this:

$ dumpe2fs -h /dev/sda1 2>&1 | grep -i 'mount count' | perl -ne '$i++;chomp;s/.*://;s/\s//g;$arr[$i]=$_;print "Next fsck in " . ($arr[$i] - $arr[1]) . " mounts\n" if($i==2);'

You can send that to a file by appending:

> /path/to/file

If you have zenity installed, you can have a popup appear by appending this instead:

| zenity --text-info --title "fsck info"

I have the last version saved as a shell script which can be set up to run in my startup applications (system|preferences|startup applications|startup programs). Here's that version, which is a bit tidier.

#!/bin/bash
# fsck mount dialogue hack, by ciderpunx#

dumpe2fs -h /dev/sda1 2>&1 \
| grep -i 'mount count' \
| perl -ne '$i++;
            chomp;
            s/.*://;
            s/\s//g;
            $arr[$i]=$_;
            print "Next fsck in " . ($arr[$i] - $arr[1]) . " mounts\n" if($i==2);' \
| zenity --text-info --title "fsck info"

[ario]

Thanks. it saved my time a lot

[COKEDUDE]

Great thread . I know its but I wanted to bring it back to life .