Adding a new linux disk:

Find the device (use dmesg)

Delete any partitions on the new disk:

fdisk /dev/sde

And add a new linux partition.

The use mkfs - in this case to create a ext4 filesystem

mkfs.ext4 /dev/sde1

Then tune the filesystem a little:

tune2fs -m 0 /dev/sde1
tune2fs -L backup2 /dev/sde1

-m 0 removes the reserved blocks
-L xxxx labels the filesystem

I've really got to remember to post some things here. It would be useful if there was a link to www.blogger.com to remind me how to post...

Grub problem while rebuilding my server as a virtual host

Installing Centos6.3 and setting up software raid

Disk setup:
500Mb software raid partition for /boot (on sda and sdb)
Create LVM raid partitions for the rest (and left over make ext4 partition)
In the LV - about the same swap as memory and the rest as /

Had a problem with grub (error 15), this fixed it:

grub> device (hd0) /dev/sda
grub> device (hd1) /dev/sdb
grub> root (hd0,0)
grub> setup (hd0)
grub> root (hd1,0)
grub> setup (hd1)
grub> quit

First stage of Reprap build

Got the first package of bit from tvrrug.
This is what it made.

TV RepRap

I've been looking at the RepRap project on and off for a while now. This time I noticed that a group had set up locally to help members build their RepRaps.

So, I have joined the Thames Valley RepRap User Group