[CentOS] install on raid1

[Wessel | Postoffice]

thnx for the response guys
Apparently the problem lies with the bios not detecting both sata dirives early enough in its boot process. so i patched both drives to another port on the motherboard and now it works like a charm.
but i'm not sure what i've to add to the grub.conf?

wessel

On Jul 23, 2010, at 4:01 PM, Jussi Hirvi wrote:

> I don't have a direct answer to your question, but here is the howto I 
> have been using twice, with good results:
> 
> http://www.howtoforge.com/software-raid1-grub-boot-fedora-8
> 
> After installing grub to the other disk, did you update your grub.conf 
> accordingly?
> 
> Terv.
> Jussi
> 
> On 23.7.2010 11.12, Wessel | Postoffice wrote:
>> Hi All,
>> 
>> I'm currently trying to install centos 5.4 x86-64bit on a raid 1, so if
>> one the 2 disks fails the server will still be available.
>> i installed grub on /dev/sda using the advanced grub configuration
>> option during the install.
>> after the install is done i boot in linux rescue mode , chroot the
>> filesystem and copy grub to both drives using:
>> grub>root (hd0,0)
>> grub>setup (hd0)
>> grub>root (hd1,0
>> grub>setup (hd1)
>> grub>quit
>> 
>> then reboot, but is still get the error : disk boot faillure, insert
>> linux install disk.
>> does anyone now what i'm doing wrong? here is a copy of my partition scheme.
>> 
>> Disk /dev/sda: 251.0 GB, 251000193024 bytes
>> 255 heads, 63 sectors/track, 30515 cylinders
>> Units = cylinders of 16065 * 512 = 8225280 bytes
>> 
>> Device Boot Start End Blocks Id System
>> /dev/sda1 * 1 38 305203+ fd Linux raid autodetect
>> /dev/sda2 39 675 5116702+ fd Linux raid autodetect
>> /dev/sda3 676 30515 239689800 fd Linux raid autodetect
>> 
>> Disk /dev/sdb: 251.0 GB, 251000193024 bytes
>> 255 heads, 63 sectors/track, 30515 cylinders
>> Units = cylinders of 16065 * 512 = 8225280 bytes
>> 
>> Device Boot Start End Blocks Id System
>> /dev/sdb1 * 1 38 305203+ fd Linux raid autodetect
>> /dev/sdb2 39 675 5116702+ fd Linux raid autodetect
>> /dev/sdb3 676 30515 239689800 fd Linux raid autodetect
>> 
>> Disk /dev/md1: 5239 MB, 5239406592 bytes
>> 2 heads, 4 sectors/track, 1279152 cylinders
>> Units = cylinders of 8 * 512 = 4096 bytes
>> 
>> 
>> Disk /dev/md0: 312 MB, 312410112 bytes
>> 2 heads, 4 sectors/track, 76272 cylinders
>> Units = cylinders of 8 * 512 = 4096 bytes
>> 
>> 
>> Disk /dev/md2: 245.4 GB, 245442281472 bytes
>> 2 heads, 4 sectors/track, 59922432 cylinders
>> Units = cylinders of 8 * 512 = 4096 bytes
>> 
>> 
>> Regards,
>> 
>> Wessel
> 
> 
> -- 
> Jussi Hirvi * Green Spot
> Topeliuksenkatu 15 C * 00250 Helsinki * Finland
> Tel. +358 9 493 981 * Mobile +358 40 771 2098 (only sms)
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