initramfs vs initrd

initramfs vs initrd

[Sébastien Chrétien]

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Hello,

What is the difference between initramfs and initrd ?

Sébastien Chrétien

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Re: initramfs vs initrd

[Josh Boyer]

On Mon, Aug 25, 2008 at 02:57:14PM +0200, =?ISO-8859-1?Q?S=E9bastien_Chr=E9tien_ wrote:
>Hello,
>
>What is the difference between initramfs and initrd ?

You could poke around in the Documentation directory of the kernel.  That
should answer your question.

Briefly, initramfs is a gzipped cpio archive.  initrd is typically a
compressed ext2 filesystem and requires a ramdisk to be unpacked to.

josh

Re: initramfs vs initrd

[Sébastien Chrétien]

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ok thank you



2008/8/25, Josh Boyer <jwboyer@linux.vnet.ibm.com>:
>
> On Mon, Aug 25, 2008 at 02:57:14PM +0200,
> =?ISO-8859-1?Q?S=E9bastien_Chr=E9tien_ wrote:
> >Hello,
> >
> >What is the difference between initramfs and initrd ?
>
>
> You could poke around in the Documentation directory of the kernel.  That
> should answer your question.
>
> Briefly, initramfs is a gzipped cpio archive.  initrd is typically a
> compressed ext2 filesystem and requires a ramdisk to be unpacked to.
>
> josh
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-dev
>

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Re: initramfs vs initrd

[Sébastien Chrétien]

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When the kernel is booting, is it possible to check if the initrd is good ?

2008/8/25, Sébastien Chrétien <sebastien.chretien.enseirb@gmail.com>:
>
> ok thank you
>
>
>
> 2008/8/25, Josh Boyer <jwboyer@linux.vnet.ibm.com>:
>>
>> On Mon, Aug 25, 2008 at 02:57:14PM +0200,
>> =?ISO-8859-1?Q?S=E9bastien_Chr=E9tien_ wrote:
>> >Hello,
>> >
>> >What is the difference between initramfs and initrd ?
>>
>>
>> You could poke around in the Documentation directory of the kernel.  That
>> should answer your question.
>>
>> Briefly, initramfs is a gzipped cpio archive.  initrd is typically a
>> compressed ext2 filesystem and requires a ramdisk to be unpacked to.
>>
>> josh
>> _______________________________________________
>> Linuxppc-dev mailing list
>> Linuxppc-dev@ozlabs.org
>> https://ozlabs.org/mailman/listinfo/linuxppc-dev
>>
>
>

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Re: initramfs vs initrd

[Geert Uytterhoeven]

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On Mon, 25 Aug 2008, Sébastien Chrétien wrote:
> When the kernel is booting, is it possible to check if the initrd is good ?

Sure, the kernel does some basic checking in init/do_mounts_rd.c.

With kind regards,

Geert Uytterhoeven
Software Architect

Sony Techsoft Centre Europe
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