Wednesday, May 24, 2006

linux software raid root /

For my own reference, raid is good.

Create degraded raid1 first,
mdadm --create /dev/md0 --level 1 --raid-devices=2 missing /dev/sdb2
mke2fs -j /dev/md0

mount /dev/md0 /mnt

Clone the / filesystem.
cd /mnt
tar -C / -clspf - . | tar -xlspvf -
change /mnt/etc/fstab

change /boot/grub/menu.lst
root=/dev/md0
mkinitrd --with=raid1 ...
(at least for CentOS 4.2, raid1 is not included in default initrd)
Following command to see the status,
cat /proc/mdstat

after reboot, add the other mirror,
mdadm /dev/md0 -a /dev/sda2


// posted by GlaDoo @ 5:01 PM 0 comments

Monday, May 22, 2006

Join Samba to Active Directory

I followed this link exactly, just one more line to add,

local master = no

Or else, the master (AD) will always be bugged with MRxSmb, Event ID 8003.

This is my first time to configure kerberos also.

// posted by GlaDoo @ 11:34 AM 0 comments

Friday, May 19, 2006

enable quota on linux

make sure package available,
rpm -qa | grep quota

/etc/fstab
/dev/sdb3 /home ext3 usrquota,defaults

mount -o remount /home

quotacheck /home

quotaon -a

setquota, better than edquota

// posted by GlaDoo @ 4:34 PM 0 comments

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