Re: Fatal: Only RAID1 devices are supported as boot devices
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Stan Hoeppner wrote:
> Mathieu Malaterre put forth on 12/3/2009 12:03 PM:
>> Hi there,
>>
>> I am trying to setup a system with software RAID for the first time.
>> I used a debian/stable/503 USB key installer. During the partitioning
>> I selected each FREE SPACE as raid, I configured then a RAID0 system.
>> And setup a LVM volume group on this RAID system.
>>
>> When setting up the boot loader, lilo failed to work properly.
>> Looking at the log is says:
>>
>> ...
>> Dec 3 17:42:32 in-target: WARNING: Added large-memory option, please
>> run lilo before you reboot
>> Dec 3 17:42:32 in-target: Running lilo...
>> Dec 3 17:42:32 in-target: Warning: LBA32 addressing assumed
>> Dec 3 17:42:32 in-target: Fatal: Only RAID1 devices are supported as
>> boot devices
>
> Read about the various RAID levels, especially RAID 0 (striping), and
> you'll understand why the Linux kernel developers will not allow you to
> boot Linux from a RAID 0 (striped) set of disks.
>
> http://en.wikipedia.org/wiki/RAID
>
> You are up against an _intentional_ design limitation.
>
Why would they intentionally limit booting from this type of RAID setup?
Is it suddenly alright to boot from a firmware RAID that presents the
RAID0 array as a single disk? The implications are the same, the
difference is that Linux probably cannot detect it.
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