help about dracut

help about dracut

[Tony Wan]

Hi List,

Sorry for interrupt. I'm totally a newbie for dracut and have no idea
how to make a customized initramfs with it on Fedora Core 12. I have a
luks-crypted partition, but I don't want to mount it at boot time, so
there's no need to ask for the password during the boot process. My
question is how to disable dracut to auto-detect crypto_LUKS
partitions and ask for the password during boot (or just for a
specific partition with a UUID). Anyone can give me help, since it's
really difficult to find a tutorial for dracut on internet. Thanks in
advance.

--
Best regards,
Tony Wan

Re: help about dracut

[Harald Hoyer]

Am 06.04.2010 14:11, schrieb Tony Wan:
> Hi List,
>
> Sorry for interrupt. I'm totally a newbie for dracut and have no idea
> how to make a customized initramfs with it on Fedora Core 12. I have a
> luks-crypted partition, but I don't want to mount it at boot time, so
> there's no need to ask for the password during the boot process. My
> question is how to disable dracut to auto-detect crypto_LUKS
> partitions and ask for the password during boot (or just for a
> specific partition with a UUID). Anyone can give me help, since it's
> really difficult to find a tutorial for dracut on internet. Thanks in
> advance.


$ man dracut

crypto LUKS
        rd_NO_LUKS
           disable crypto LUKS detection

        rd_LUKS_UUID=<luks uuid>
           only activate the LUKS partitions with the given UUID Any
           "luks-" of the LUKS UUID is removed before comparing to
           <luks uuid>.  The comparisons also matches, if <luks uuid> is
           only the beginning of the LUKS UUID, so you don’t have to
           specify the full UUID.

Re: help about dracut

[Tony Wan]

Thank you very much. But I still have a question -- can I specify 2 or
more crypto_LUKS partitions after "rd_LUKS_UUID="?

On Wed, Apr 7, 2010 at 5:15 PM, Harald Hoyer <harald-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> Am 06.04.2010 14:11, schrieb Tony Wan:
>>
>> Hi List,
>>
>> Sorry for interrupt. I'm totally a newbie for dracut and have no idea
>> how to make a customized initramfs with it on Fedora Core 12. I have a
>> luks-crypted partition, but I don't want to mount it at boot time, so
>> there's no need to ask for the password during the boot process. My
>> question is how to disable dracut to auto-detect crypto_LUKS
>> partitions and ask for the password during boot (or just for a
>> specific partition with a UUID). Anyone can give me help, since it's
>> really difficult to find a tutorial for dracut on internet. Thanks in
>> advance.
>
>
> $ man dracut
>
> crypto LUKS
>       rd_NO_LUKS
>          disable crypto LUKS detection
>
>       rd_LUKS_UUID=<luks uuid>
>          only activate the LUKS partitions with the given UUID Any
>          "luks-" of the LUKS UUID is removed before comparing to
>          <luks uuid>.  The comparisons also matches, if <luks uuid> is
>          only the beginning of the LUKS UUID, so you don’t have to
>          specify the full UUID.
>
>



-- 
Best regards,
Tony Wan

Re: help about dracut

[Harald Hoyer]

Am 07.04.2010 11:52, schrieb Tony Wan:
> Thank you very much. But I still have a question -- can I specify 2 or
> more crypto_LUKS partitions after "rd_LUKS_UUID="?

you can specify rd_LUKS_UUID several times

>
> On Wed, Apr 7, 2010 at 5:15 PM, Harald Hoyer<harald-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>  wrote:
>> Am 06.04.2010 14:11, schrieb Tony Wan:
>>>
>>> Hi List,
>>>
>>> Sorry for interrupt. I'm totally a newbie for dracut and have no idea
>>> how to make a customized initramfs with it on Fedora Core 12. I have a
>>> luks-crypted partition, but I don't want to mount it at boot time, so
>>> there's no need to ask for the password during the boot process. My
>>> question is how to disable dracut to auto-detect crypto_LUKS
>>> partitions and ask for the password during boot (or just for a
>>> specific partition with a UUID). Anyone can give me help, since it's
>>> really difficult to find a tutorial for dracut on internet. Thanks in
>>> advance.
>>
>>
>> $ man dracut
>>
>> crypto LUKS
>>        rd_NO_LUKS
>>           disable crypto LUKS detection
>>
>>        rd_LUKS_UUID=<luks uuid>
>>           only activate the LUKS partitions with the given UUID Any
>>           "luks-" of the LUKS UUID is removed before comparing to
>>           <luks uuid>.  The comparisons also matches, if<luks uuid>  is
>>           only the beginning of the LUKS UUID, so you don’t have to
>>           specify the full UUID.
>>
>>
>
>
>