Re: grub segmentation fault on RAID 1 lvm
From: Craig White (craigwhite_at_azapple.com)
Date: 08/27/05
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- In reply to: David G. Miller (aka DaveAtFraud): "Re: grub segmentation fault on RAID 1 lvm"
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To: For users of Fedora Core releases <fedora-list@redhat.com> Date: Fri, 26 Aug 2005 22:43:10 -0700
On Fri, 2005-08-26 at 22:34 -0600, David G. Miller (aka DaveAtFraud)
wrote:
> shawn@nccsc.k12.in.us wrote:
>
> >On Friday, August 26, 2005 6:28 PM, Craig White wrote:
> >
> >
> >>>
> >>>Nothing wrong with lilo - grub seems to work better.
> >>
> >>
> >
> >This is not so true with RAID. Grub does not support it like lilo does.
> >In fact, my experience is that grub-install does not work with RAID1
> >/boot partitions at all out of the box. With lilo, it will
> >automatically make the mirrors of RAID 1 both bootable and active with a
> >boot image after lilo is executed. You can literally kill either drive
> >and still be able to boot into the degraded one. In order to do this
> >with grub, the boot image must be installed onto both drives manually,
> >or it must be patched as Bill described.
> >
> >
> >
> >>>
> >>>I think that there are thousands of people successfully
> >>>running Fedora and a few people that are struggling can
> >>>mislead others into thinking that there are some problematic
> >>>issues with the defaults but typically, they have varied from
> >>>the defaults.
> >>>
> >>
> >>
> >
> >No one is being misled here. In fact, my implementation only uses
> >stable Fedora rpms from the base and update repositories. David is
> >implementing a good solution. I was using lilo on both FC1 and FC2
> >without problems. In fact, it never really made much sense to me for
> >Fedora to offer RAID during the install and then not provide a valid
> >RAID-compatible boot image automatically across all drives (it did on
> >FC1 because lilo was still an option). Maybe grub2 will prove more
> >promising.
> >
> >--
> >
> >Shawn
> >
> >
> >
> >
> Thanks, Shawn. "Couldn't have said it better myself."
>
> I mainly wanted to point out that lilo supports RAID 1 *natively*. No
> fuss, no custom scripts, etc.; it "just works."
>
> If someone is a grub developer and they want to help implement software
> RAID support in grub, they should have at it. On the other hand, if
> someone wants a simple, easy to install and maintain implementation of
> software RAID for Fedora, they should use lilo for their boot loader;
> not grub. The current incarnation of grub doesn't inherently support
> software RAID and that support needs to be there if folks like Fedora
> are going to offer lvm and RAID 1 as an install option for /boot.
> Sadly, lots of people out there with stock installs of Fedora probably
> think that their system will survive a hit to their system disk because
> they think that software RAID 1 will keep it running.
---- hmmm...I probably haven't done software RAID since RHL 7.x and obviously lilo and didn't know the difference but I vaguely recollect issues with booting from LVM. On these 'stock installs' that you refer to - there are 2 options...1 is to auto partition and setup and the other is to do it yourself - which presumes a little on knowing what you are doing. http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/sysadmin- guide/s1-raid-diskdruid-manual-devmnt.html curiously, this says that if you put /boot into a RAID array, it must be in a RAID 1 configuration only but it doesn't say anything about choosing lilo - I wonder if anaconda does this automatically if you put /boot into a RAID 1 array... Craig -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list
- Previous message: Reshat Sabiq: "Re: Linux notebooks by Hewlett-Packard"
- In reply to: David G. Miller (aka DaveAtFraud): "Re: grub segmentation fault on RAID 1 lvm"
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