Enable user quotas on B3

[anhtuan445]

NOTE: The kernel and modules used here are not fully tested so use at your own risk!

This small guide will help you get user quotas running on your B3.

This is the steps I took on B3 to get user quotas working. It might be missing some small thing as it took a lot of testing to get it. Feel free to comment on steps missing or clarifications needed.

1. Download files from - http://b3.update.excito.org/test/ .I used wget to download the kernel and module files.

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	wget filename

2. Install the packages manually -

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	dpkg -i  bubba3-kernel_2.6.35.8-1.armel.deb  bubba3-modules_2.6.35.8-1.armel.deb

3. Restart

4. Add quota support to mounted partition (I'm using journaled quota v2)
Open fstab and add ,usrjquota=aquota.user,jqfmt=vfsv0 to /home partition

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	vi /etc/fstab

The line should look like this

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    ..
    /dev/mapper/bubba-storage       /home   ext3    defaults,usrjquota=aquota.user,jqfmt=vfsv0      0       2
    ..

5. Remount the partition (restart will do it also)

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	mount -o remount /home

6. Check with "mount" if the partiton was mounted correctly. In my example -

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	..
	/dev/mapper/bubba-storage on /home type ext3 (rw,usrjquota=aquota.user,jqfmt=vfsv0)
	..

7. Add quota support to kernel modules

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	modprobe quota_v2
	echo 'quota_v2' >> /etc/modules

8. Restart

9. Check "lsmod" and find -

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	..
	quota_v2                3461  0
	..

If you find it then the module loading was successful.

10. Create aquota files

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	touch /home/aquota.user
	chmod 644 /home/aquota.user

I'm using 644 instead of 600 because users can see their usage thatway.
11. Install quota (might be installed already but just to be sure)

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	apt-get install quota quotatool

12. Run quotacheck

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	quotacheck -vcum /home

You should get something like this

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	quotacheck: Scanning /dev/mapper/bubba-storage [/home] done
	quotacheck: Old group file not found. Usage will not be substracted.
	quotacheck: Checked 19 directories and 16 files

Wait for the scan to complete.
13. Turn the qouta on

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	quotaon /home

14. Use repquota (repquota -a for example) to check the current usage.

15. Now your done - quotas are working. Next step is to configure the usage limits.

16. You can use quotatool to set user quota limits. The example will set limit for user marten, using 15Mb for soft and 20Mb for hard limit on /home partition.

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    quotatool -u marten -bq 15M -l "20 Mb" /home

This should cover it
If you have any questions or comments please leave them here and I'll be happy to help.

Marten