Re: [gentoo-user] grub2 or kernel config - unable to properly boot

[Francisco Ares]

2013/8/27 Francisco Ares <frares@×××××.com>

>
> 2013/8/27 Francisco Ares <frares@×××××.com>
>
>>
>> 2013/8/27 Francisco Ares <frares@×××××.com>
>>
>>>
>>> 2013/8/27 Michael Hampicke <mh@××××.biz>
>>>
>>>> Am 26.08.2013 20:11, schrieb Francisco Ares:
>>>> > Hi, Michael, thanks for you reply.
>>>> >
>>>> > Please forgive me for not having mentioned grub2-mkconfig and
>>>> > grub2-install. The mentioned grub.cfg was a sample from a working
>>>> system,
>>>> > with legacy grub:0, from which I have recovered parts of the kernel
>>>> command
>>>> > line parameters.
>>>> >
>>>> > After "genkernel" finished to build the kernel, I've issued:
>>>> >
>>>> > grub2-mkconfig -o /boot/grub2/grub.cfg
>>>> > grub2-install /dev/sda
>>>> >
>>>> > Sorry for this.
>>>> > Francisco
>>>> On a failed boot, can you reach the rescue system from the initramfs?
>>>> (The message is something like "enter password for rescue or ctrl+d) If
>>>> so, are you able mount your actual root partiton (sda5) manually?
>>>>
>>>>
>>> No, unfortunately. But I am able to use the grub console prior to boot.
>>>
>>> By doing so, I have listed the command about to be used to boot the
>>> first entry in the grub menu, it installs some modules. In regard of file
>>> systems, it only loads a ext2 module, and the root partition is ext4
>>> formated.
>>>
>>> Although this kernel has ext2, ext3 and ext4 built in (not modules), can
>>> this be a cue?  Right now I am preparing to format the root partition as
>>> ext2, just to check this out.
>>>
>>> Thanks again
>>> Francisco
>>>
>>>
>> It didn't work, so I suppose the embedded ext2, ext3 and ext4 in the
>> kernel is not the issue, and might be working.  Going to explore the grub
>> console now.
>>
>> Thanks
>> Francisco
>>
>
>
> In the grub console, prior to boot, I was able to mount any partition
> using commands like:
>
> root=(hd0,msdos5)
>
> and then listing the directory tree structure with " ls / " gave the
> expected results.
>
> Francisco
>
>

I think I might have found it.  Although I have selected in the kernel
"menuconfig" to compress the initramfs using gzip and deselected all other
decompression forms. a simple "file initramfs-xxx" told me that it was "XZ
compressed data", so now I am rebuilding the kernel with all decompression
algorithms built in.

I will (hope) soon post the results.

Thanks,
Francisco