Re: mount other than rootfs problem

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On 12.10.2011 21:07, Vivek Goyal wrote:
> On Wed, Oct 12, 2011 at 11:22:34AM +0200, Harald Hoyer wrote:
>> On 12.10.2011 11:03, Dave Young wrote:
>>> On 10/01/2011 03:03 AM, Vivek Goyal wrote:
>>>> On Fri, Sep 30, 2011 at 02:38:39PM -0400, Vivek Goyal wrote:
>>>>> On Fri, Sep 30, 2011 at 11:40:12AM +0800, Dave Young wrote:
>>>>> [..]
>>>>>> Add lvm_scan in also works, so if we can make lvm_scan
>>>>>> being called automaticlly via dependencies it will be good. OTOH fstab
>>>>>> is better than cmdlines as an interface for multi-target dumping
>>>>> Agreed that fstab.sys looks like a good interface to mouting non-root devices.
>>>> Having said that, looks like dracut builds all the state using command
>>>> line options. All the lvms, iscsi root, fcoe targets etc. So they might
>>>> expect everything to be passed on command line. In that case it will
>>>> become hard from kdump perspective.
>>> There's file injection feature in dracut, if the kdump.conf params can
>>> move to cmdline params we can just inject /etc/cmdline instead of pass
>>> them to kexec
>> I will add /etc/cmdline.d/ as a drop in for configs. This can also be used
>> easily for combined initramfs images.
> Harald,
> We need something so that we can specify top level block device/uuid/label
> on either commandline or through /etc/cmdline.d/*.config and then dracut
> automatically figures out all the dependencies and packs all the relevant
> modules.
> For example, one might say in kdump.conf that save the dump to a file
> system with UUID=xyz. Now one needs to figure out underlying devices,
> traverse through device stack, bring up associated networking and 
> traverse through networking stack.
> I see in dracut seems to look for root device, and traverses through
> block device stack and every modules packs its relevant files if
> that type of device is found in stack.
> So something like "extra_mount=dev/uuid/label" kind of command line
> will help where one can specify extra mount targets which are mounted.
> Thanks
> Vivek

dracut only does this in hostonly mode... I guess, you will need hostonly, too,
to reduce the site of the initramfs.
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