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RE: Raid and LVM at boot on RHEL4



Exact!!! We've installed RedHat Linux with logical volumes and we had to
install / on a ext3 partition, not in a logical volume.


-----Mensaje original-----
De: redhat-list-bounces redhat com
[mailto:redhat-list-bounces redhat com]En nombre de Cecilio Marín
Enviado el: martes, 25 de octubre de 2005 17:14
Para: General Red Hat Linux discussion list
Asunto: Re: Raid and LVM at boot on RHEL4


Hi,

I think your problem is the type of partition.

For grub is requesite /boot partition will be ext3, NOT LVM. Make sure
you put /dev/md0 as ext3.

Atte.

Lunt, Nick escribió:

>Hello folks,
>
>We have some Proliant DL145 machines which do not come with a raid
controller but do come with 2 identical internal disks.
>
>I tried to do the install with putting the two disks in a raid1 config via
the command line as Anaconda would not allow me to perform a mixed raid and
LVM setup at install.
>
>Here's is what I did,
>
>Boot off disk 1
>Before getting to the configure file systems bit I went onto console 2 and
did this -
>
>fdisk /dev/sda creating a 300Mb bootable partition sda1 for /boot and left
the rest of the disk as a partition of type linux raid autodetect.
>
>I then did exactly the same on /dev/sdb
>
>I created /dev/md0 with /dev/sda1 and /dev/sdb1 and /dev/md1 with /dev/sda2
and /dev/sdb2
>
>My aim was to use /dev/md0 as a raid 1 /boot partition and /dev/md1 as LVM
for the rest of the OS.
>So I pvcreated /dev/md1 and vgcreated vg00 with /dev/md1.
>
>Next I switched back to console 7 to carry on with the install, Anaconda
recognised the LVM and raid structure Id put on the disks and allowed me to
create lvols in the vg.
>
>No problems so far, however, just before it starts installing the packages
it formats the partitions then tells me it could not mount /boot (even tho
it just formatted it) and presents a really unhelpful button saying "press
ok to reboot" -- NICE ! ;)
>
>Anyhoo, has anyone managed to get raid and lvm working from install on RHEL
4 ?
>
>Im going to keep trying to get this to work, but if anyone has any pointers
they would be well appreciated.
>
>Many thanks,
>Nick .
>
>
>
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