[RAS] Nebka disk

Christian Zimmermann christian.zimmermann at uconn.edu
Wed Mar 12 13:29:16 EDT 2008


The file sent was incomplete. Here it is complete.

On Wed, 12 Mar 2008, Christian Zimmermann wrote:

> Nebka load is still high, so I have not done anything yet. I looked into what 
> I am supposed to do, and I must confess I do not understand what I am 
> supposed to do and especially what to do if something does not work right.
>
> I have attached a file containing detailed instructions and questions. Please 
> amend so that I can work with it, hopefully tomorrow.
>
> Also, how long is this supposed to take?
>
> Christian Zimmermann                                     FIGUGEGL!
> Department of Economics
> University of Connecticut
> 341 Mansfield Road, Unit 1063
> Storrs, CT 06269-1063
> http://ideas.repec.org/zimm/   christian.zimmermann at uconn.edu
> http://ideas.repec.org/e/pzi1.html
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tune2fs -c 1000
rid stop
reboot
# into 2.4 or 2.6?
#at reboot in grub: single user mode (select kernel, press "e", select kernel line, press "e", append "single" at the end of the line, "enter", press "b", root password)
		   mount -o ro,remount /dev/sda1 

e2fsck -c -y /dev/sda1

#according to the man page: 
#   Note  that  in general it is not safe to run e2fsck on mounted filesys-
#   tems.  The only exception is if the -n option is specified, and -c, -l,
#   or  -L  options  are not specified.   However, even if it is safe to do
#   so, the results printed by e2fsck are not valid if  the  filesystem  is
#   mounted.    If e2fsck asks whether or not you should check a filesystem
#   which is mounted, the only correct answer is "no".  Only experts  who
#   really know what they are doing should consider answering this question
#   in any other way.
#I am no expert, in fact, I hardly understand what I am supposed to do here, 
#are you sure you want to do this?

# this takes a few hours.
# what if something is wrong?

reboot

#single user again

rsync -va --exclude /vol --exclude /proc --exclude /sys / /vol

grub-install --directory /vol/boot/grub /dev/sdb1

# do you mean 
#grub-install --root-directory=/vol/boot/grub /dev/sdb1
# this is how I would understand it from the man page on nebka.
# and why not use update-grub?


#sdb1, not sdb, right?

#edit /vol/etc/fstab putting the right device for the swap, but how? And I suppose that file will be rsynched from /etc/fstab, right?

reboot 

# normal user (same a above, remove "single")


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