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Subject: Re: Failover root devices
To: Harald Hoyer <harald.hoyer@gmail.com>, Drew DeVault <sir@cmpwn.com>
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From: Richard Weinberger <richard@nod.at>
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Date: Thu, 17 Sep 2015 20:29:34 +0200
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Am 17.09.2015 um 20:27 schrieb Harald Hoyer:
> On 17.09.2015 20:17, Richard Weinberger wrote:
>> Am 17.09.2015 um 20:05 schrieb Drew DeVault:
>>>> Better send a patch to dracut folks. :-)
>>>> Major distros use it and if the feature is nice other initramfs implementations will adopt it too.
>>>
>>> dracut is the common one sure, but I'm still not confident that it's the right place to put this. How would that feature look? Would we have the root= parameter use a format that's
>>> specific to dracut and no longer a sane kernel parameter? Would we use a second parameter and discard the root= parameter? I think all of these are suboptimal solutions. No, the
>>> right way, I think, is to implement this in the kernel and let the init systems take it from there themselves.
>>
>> I'd patch dracut to support kernel command lines like "root=/dev/diskX root=/dev/diskY". initramfs is allowed to parse/use the command line.
>> So, you can do what you want.
>>
>> Thanks,
>> //richard
> 
> 
> https://github.com/haraldh/dracut/blob/master/modules.d/95rootfs-block/rootfallback.sh

Awesome! :-)

Thanks,
//richard