[CentOS] Re: Installation problem, possibly RAID
eddielee at tropicsoft.com
Sun Sep 11 10:40:07 UTC 2005
Bryan J. Smith wrote:
> On Sat, 2005-09-10 at 17:24 -0400, Edward Diener wrote:
>>Just though I mentioned that I got CentOS installed properly by not using a boot
>>partitition and just installing everything into a root partition. Why this bug
>>insists on my machine, and whether it exists for others for some reason is
>>something I do not know. My guess is that grub booting on a boot partition and
>>executing programs on a root partition needs to know the disk geometry of the
>>root partition and is not doing that properly on my machine for some reason or
> I pretty much killed the "/boot as a separate slice" option years ago.
> Too many little nagging headaches, especially with GRUB (although LILO
> itself is another headache).
> About the only time you need it is for MD (software) RAID. But if I
> need RAID, I throw in a 3Ware (ATA/SATA) or LSI (SCSI/SATA) card.
> So that removes that issue for myself.
I was doing it so that if I ever needed to move my root partition, while keeping
the same partition order, I would not need to reinitialize grub on the boot
partition. I was told however that grub does not have the smarts to recognize
where its root partition is at run-time so that I would have to reinitialize it
anyway if I moved my root partition.
In general Linux's reliance on partition order in mounting hard disk partitions,
and evidently grub's reliance on specific hardcoded hard disk geometry in order
to find its root partition, seem primitive to me. I could be wrong but I thought
that hard disk information on PCs was a pretty well determined thing and a
better system would automatically detemine these things at run-time. Of course
MS Windows does not allow a separate boot partition at all and also relies on
partition order, so my remarks go to Windows as well as Linux.
In these days of large hard disks, boot loaders which can boot multiple
operating systems, and partition managers which can move and image hard disk
partitions at will, a better system for OSs to find what they need on hard disks
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