Age and the art of making a EXT3 File System Kernel

Age and the art of making a EXT3 File System Kernel

[John]

Gaddsss, I really must be aging. I have successfully built a working 
EXT3 kernel in the past and have forgotten the requirements. I have 
selected in the "file systems" Yes for the ext2 and Module for the ext3 
journal file systems. There is something else in the back of my mind 
that saying that I am missing something.  Currently the attempts that I 
have built do a kernel panic right at the point where it mounts the root 
partition. LABEL=/  "cant be found". I have tried both module and hard 
select for the ext3 file systems with the same results.

I am using RH8.0 with formatted scsi ext3 file system. The canned 
2.4.18-14 loads just fine but it lacks the dmascc0 drivers that I need 
to ax25. I was attempting to build a 2.4.19 smp kernel.

Could some kind sole refresh my memory with the ext3 file system 
requirements.

Thank you in advance. John

Re: Age and the art of making a EXT3 File System Kernel

[Niall Parker]

John wrote:
> Gaddsss, I really must be aging. I have successfully built a working 
> EXT3 kernel in the past and have forgotten the requirements. I have 
> selected in the "file systems" Yes for the ext2 and Module for the ext3 
> journal file systems. There is something else in the back of my mind 
> that saying that I am missing something.  Currently the attempts that I 
> have built do a kernel panic right at the point where it mounts the root 
> partition. LABEL=/  "cant be found". I have tried both module and hard 
> select for the ext3 file systems with the same results.
> 
> I am using RH8.0 with formatted scsi ext3 file system. The canned 
> 2.4.18-14 loads just fine but it lacks the dmascc0 drivers that I need 
> to ax25. I was attempting to build a 2.4.19 smp kernel.
> 
> Could some kind sole refresh my memory with the ext3 file system 
> requirements.

Just compiled the dmascc driver here for a RH8.0 machine, but I used the 
  default config file from the RH kernel rpm (in directory 
/usr/src/linux-2.4/configs) as my base config and just added the dmascc 
module to the build. Works fine.

I haven't tried it before, but you may be able to grab the appropriate 
config file from an official kernel rpm and just apply it to the build 
of a complete kernel source tree from kernel.org.

BTW, what kind of card are you using (using PI2's here)

						... Niall (VE7HEX)

Re: Age and the art of making a EXT3 File System Kernel

[Jean-Luc]

John wrote:
> 
> Gaddsss, I really must be aging. I have successfully built a working
> EXT3 kernel in the past and have forgotten the requirements. I have
> selected in the "file systems" Yes for the ext2 and Module for the ext3
> journal file systems. There is something else in the back of my mind
> that saying that I am missing something.  Currently the attempts that I
> have built do a kernel panic right at the point where it mounts the root
> partition. LABEL=/  "cant be found". I have tried both module and hard
> select for the ext3 file systems with the same results.
> 
> I am using RH8.0 with formatted scsi ext3 file system. The canned
> 2.4.18-14 loads just fine but it lacks the dmascc0 drivers that I need
> to ax25. I was attempting to build a 2.4.19 smp kernel.
> 
> Could some kind sole refresh my memory with the ext3 file system
> requirements.
> 
> Thank you in advance. John
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-hams" in
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John,

ext3 filesystem have to be buit in the kernel, not as module otherwise
you will never be able to boot on your ext3 partition.

---
Regards and 73
	Jean-Luc f5ibh

Re: Age and the art of making a EXT3 File System Kernel

[Jean-Luc]

John wrote:
> 
> Gaddsss, I really must be aging. I have successfully built a working
> EXT3 kernel in the past and have forgotten the requirements. I have
> selected in the "file systems" Yes for the ext2 and Module for the ext3
> journal file systems. There is something else in the back of my mind
> that saying that I am missing something.  Currently the attempts that I
> have built do a kernel panic right at the point where it mounts the root
> partition. LABEL=/  "cant be found". I have tried both module and hard
> select for the ext3 file systems with the same results.
> 
> I am using RH8.0 with formatted scsi ext3 file system. The canned
> 2.4.18-14 loads just fine but it lacks the dmascc0 drivers that I need
> to ax25. I was attempting to build a 2.4.19 smp kernel.
> 
> Could some kind sole refresh my memory with the ext3 file system
> requirements.
> 
> Thank you in advance. John
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-hams" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Don't forget to set the filesystem to ext3 in /etc/fstab

----
jean-Luc

Re: Age and the art of making a EXT3 File System Kernel

[Thomas Nilsson]

Hi,

in general everything you need for booting must be comipiled into the kernel 
and NOT being modules. This includes scsi drivers, file-systems (ext3) etc in 
your case.

BR

/Thomas, SM0KBD


Citerar Jean-Luc <jean-luc.coulon@wanadoo.fr>:

> John wrote:
> > 
> > Gaddsss, I really must be aging. I have successfully built a working
> > EXT3 kernel in the past and have forgotten the requirements. I have
> > selected in the "file systems" Yes for the ext2 and Module for the ext3
> > journal file systems. There is something else in the back of my mind
> > that saying that I am missing something.  Currently the attempts that I
> > have built do a kernel panic right at the point where it mounts the root
> > partition. LABEL=/  "cant be found". I have tried both module and hard
> > select for the ext3 file systems with the same results.
> > 
> > I am using RH8.0 with formatted scsi ext3 file system. The canned
> > 2.4.18-14 loads just fine but it lacks the dmascc0 drivers that I need
> > to ax25. I was attempting to build a 2.4.19 smp kernel.
> > 
> > Could some kind sole refresh my memory with the ext3 file system
> > requirements.
> > 
> > Thank you in advance. John
> > 
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-hams" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> Don't forget to set the filesystem to ext3 in /etc/fstab


-- 
Thomas "Thuben" Nilsson
E-mail: Thomas<dot>Nilsson <at> bahnhof<dot>se

Re: Age and the art of making a EXT3 File System Kernel

[Wilbert Knol]

On Monday 05 May 2003 09:29, John wrote:
> Gaddsss, I really must be aging. I have successfully built a working
> EXT3 kernel in the past and have forgotten the requirements. I have
> selected in the "file systems" Yes for the ext2 and Module for the ext3

Are you trying to boot off the ext3 partition?

if so, try building ext3 into the kernel, as opposed to having it as a 
module. This may avoid the chicken/egg problem....

<snip>

> that saying that I am missing something.  Currently the attempts that I
> have built do a kernel panic right at the point where it mounts the root
> partition. LABEL=/  "cant be found". I have tried both module and hard

Wilbert, ZL2BSJ

Re: Age and the art of making a EXT3 File System Kernel

[terry]

On Sun, 4 May 2003, John wrote:

> partition. LABEL=/  "cant be found".

... have you included an 'hdx=scsi' statement in lilo/grub ...


-- 
73 , de WD0FPC		Pacific Nowthwest 2M Repeaters
    aka: terry 		http://www.aniota.com/~wd0fpc

Re: Age and the art of making a EXT3 File System Kernel

[Rodolfo Brasnarof]

---
On 4 May 2003 at 14:29, John wrote:

> Gaddsss, I really must be aging. I have successfully built a
> working EXT3 kernel in the past and have forgotten the
> requirements. I have selected in the "file systems" Yes for the
> ext2 and Module for the ext3 journal file systems. There is
> something else in the back of my mind that saying that I am
> missing something.  Currently the attempts that I have built do a
> kernel panic right at the point where it mounts the root
> partition. LABEL=/  "cant be found". I have tried both module and
> hard select for the ext3 file systems with the same results.
> 
> I am using RH8.0 with formatted scsi ext3 file system. The canned
> 2.4.18-14 loads just fine but it lacks the dmascc0 drivers that I
> need to ax25. I was attempting to build a 2.4.19 smp kernel.
> 
> Could some kind sole refresh my memory with the ext3 file system
> requirements.

You should have ext3 support built into the kernel, unless 
you use the initrd way, that lets you load it as a module. I 
think you should have ext2 too.

In order to mount the root filesystem as ext3, you have to 
set that in fstab. Remember you can still mount your ext3 as 
ext2. Also you can turn an ext2 into ext3, and vice-versa, 
using tune2fs.

Re: Age and the art of making a EXT3 File System Kernel

[Hannu Savolainen, oh2glh]

On 4 May 2003 at 14:29, John wrote:

> Gaddsss, I really must be aging. I have successfully built a
> working EXT3 kernel in the past and have forgotten the
> requirements. I have selected in the "file systems" Yes for the
> ext2 and Module for the ext3 journal file systems. There is
> something else in the back of my mind that saying that I am
> missing something.  Currently the attempts that I have built do a
> kernel panic right at the point where it mounts the root
> partition. LABEL=/  "cant be found". I have tried both module and
> hard select for the ext3 file systems with the same results.
> 
> I am using RH8.0 with formatted scsi ext3 file system. The canned
> 2.4.18-14 loads just fine but it lacks the dmascc0 drivers that I
> need to ax25. I was attempting to build a 2.4.19 smp kernel.
I had the same problem few months ago. I think the LABEL=/ stuff requires
some kind of disk label support option (which may be RedHat's extension to
the kernel). I didn't manage to find any elegant solution within almost a
day of work so I decided to use brute force.

My method was editing /etc/fstab manually while running the old kernel. I
just replaced "LABEL=/" with the /dev/hda# partition that contained the
root fs. If there are any other LABEL= strings they need to be replaced in
the same way. The easiest way to find out the right device names is the
"df" command. 

Also the original RH's kernel works after this modification.
However you should be very very carefull because making a mistake here
makes the system unbootable forever. Don't do this kind of changes unless
you are familiar with the /etc/fstab format.

Best regards,

Hannu
-----
Hannu Savolainen (hannu@opensound.com)
http://www.opensound.com (Open Sound System (OSS))
http://www.compusonic.fi (Finnish OSS pages)
OH2GLH QTH: Karkkila, Finland LOC: KP20CM

Re: Age and the art of making a EXT3 File System Kernel

[Tomi Manninen]

On Wed, 7 May 2003, Hannu Savolainen, oh2glh wrote:

> My method was editing /etc/fstab manually while running the old kernel. I
> just replaced "LABEL=/" with the /dev/hda# partition that contained the
> root fs. If there are any other LABEL= strings they need to be replaced in
> the same way. The easiest way to find out the right device names is the
> "df" command. 

I did the same in /boot/grub/grub.conf after similar effort to try to make 
it work...

Doing it in grub/lilo has the advantage of not breaking anything for the 
stock distribution kernel.

-- 
Tomi Manninen           Internet:  oh2bns@sral.fi
OH2BNS                  AX.25:     oh2bns@oh2rbi.fin.eu
KP20ME04                Amprnet:   oh2bns@oh2rbi.ampr.org