[U-Boot-Users] RE: start / load addresses for initrd

Wed Apr 2 23:18:51 CEST 2003

>> I was getting the error:
>> (RAMDISK: incomplete write (ramdisk too small?) (-28!= 32768)
>>  and then I discovered the my command line option ramdisk_size=8192 needs
to
>>  be changed to ramdisk_size=16384.

>What makes you think so? I think you are wrong.
Yes - I was wrong - I misinterpreted the definition of the command line
option

> > ## Loading RAMDisk Image at 00200000 ...
> > Image Name:   DA Ramdisk Image
> > Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
> > Data Size:    1509352 Bytes =  1.4 MB

>Given a compressed size of 1.4 MB, the contents of the  ramdisk  will
>be probably in the range of 3...4 MB. Did you really create a ramdisk
>16 MB big?

Yes - stupid mistake

> > RAMDISK: Couldn't find valid RAM disk image starting at 0.
> > Freeing initrd memory: 1473k freed
> > Kernel panic: VFS: Unable to mount root fs on 01:00

>Again, I see no indication that  you  really  have  a  good,  working
>ramdisk image. I think you should ask MV support for help.
>
>Alternmatively, you could try using a known-to-work ramdisk image for
>a start, for example one from here:
>ftp://ftp.denx.de/pub/LinuxPPC/usr/src/SELF/images/

Okay - I downloaded pRamdisk and I now have the following error:

>RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
>Tracer: Initialization complete
>RAMDISK: Compressed image found at block 0
>RAMDISK: incomplete write (ramdisk too small?) (-28 != 32768)

So now it has found a valid ramdisk image - and it was not before,
however I still get the other error.

Kindest Regards,

Jerry Walden

Entire Boot Log is Below:

U-Boot 0.2.0 (Apr  2 2003 - 11:42:33)

CPU:   IBM PowerPC 405GPr Rev. A at 266.666 MHz (PLB=133, OPB=66, EBC=26
MHz)
           PCI async ext clock used, internal PCI arbiter enabled
           16 kB I-Cache 16 kB D-Cache

Board: ### No HW ID - assuming WALNUT405
I2C:   ready
DRAM:  64 MB
Now running in RAM - U-Boot at: 03fcf000
FLASH: 512 kB
*** Warning - bad CRC, using default environment

PCI:   Bus Dev VenId DevId Class In
PCI Autoconfig: Memory region: [20000000-27ffffff]
PCI Autoconfig: I/O region: [800000-3ffffff]
PCI Scan: Found Bus 0, Device 0, Function 0
PCI Scan: Found Bus 0, Device 7, Function 0
PCI Autoconfig: BAR 0, Mem, size=0x1000000, address=0x20000000
PCI Autoconfig: BAR 1, I/O, size=0xffffff04, No room in resource
PCI Autoconfig: BAR 2, I/O, size=0x1000000, address=0x1000000
        00  07  1394  0978  0200  1c

In:    serial
Out:   serial
Err:   serial

U-Boot relocated to 03fcf000
   Bus 0: port = c
OK
  Device 0: Model: SanDisk SDCFB-32 Firm: Vdg 1.23. Ser#: 003917A2203F2620
            Type: Removable Hard Disk
            Capacity: 30.6 MB = 0.0 GB (62720 x 512)
=>
=> imi 0x100000

## Checking Image at 00100000 ...
Image Name:   Linux-2.4.18_mvl30-walnut
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    300107 Bytes = 293.1 kB
Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK

=> imi 0x200000

## Checking Image at 00200000 ...
   Image Name:   Simple Embedded Linux Framework
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    1476478 Bytes =  1.4 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
=> bootm 0x100000 0x200000

## Booting image at 00100000 ...
   Image Name:   Linux-2.4.18_mvl30-walnut
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    300107 Bytes = 293.1 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
## Current stack ends at 0x03F9EBE8 => set upper limit to 0x00800000
## cmdline at 0x007FFF00 ... 0x007FFF45
memstart    = 0x00000000
memsize     = 0x04000000
flashstart  = 0xFFF80000
flashsize   = 0x00080000
flashoffset = 0x0003100
ramstart   = 0x00000000
ramsize    = 0x00000000
bootflags   = 0x001E8480
procfreq    = 266.666 MHz
lb_busfreq = 133.333 MHz
pci_busfreq = 33.333 MHz
ethaddr     = 00:00:00:00:00:00
IP addr     = 0.0.0.0
baudrate    =   9600 bps

## Loading RAMDisk Image at 00200000 ...

   Image Name:   Simple Embedded Linux Framework
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    1476478 Bytes =  1.4 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK

## initrd at 0x00200040 ... 0x003687BD (len=1476478=0x16877E)

   Loading Ramdisk to 03e35000, end 03f9d77e ... OK

## Transferring control to Linux (at address 00000000) ...
Linux version 2.4.18_mvl30-walnut (root at hhl) (gcc version 3.2.1 20020930
(MontaVista)) #34
IBM Sycamore (IBM405GPr) Platform

On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.

Kernel command line: root=/dev/ram rw ramdisk_size=16384
console=ttyS0,9600n8 console=tty0
serial_out UART_LCR 176
Calibrating delay loop... 266.24 BogoMIPS
Memory: 62296k available (516k kernel code, 212k data, 32k init, 0k highmem)
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
OCP uart ver 1.2 init complete
Starting kswapd
Disabling the Out Of Memory Killer
Serial driver version 5.05c (2001-07-08) with no serial options enabled
ttyS00 at 0x0000 (irq = 0) is a 16550A
ttyS01 at 0x0000 (irq = 1) is a 16550A
block: 128 slots per queue, batch=32
RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
Tracer: Initialization complete
RAMDISK: Compressed image found at block 0
RAMDISK: incomplete write (ramdisk too small?) (-28 != 32768)

Jerry Walden
Program Manager
Digital Atlantic Inc
http://www.digitalatlantic.com
jwalden at digitalatlantic.com
1-877-494-6073 x407
cell - 703-431-2413

-----Original Message-----
From: u-boot-users-admin at lists.sourceforge.net
[mailto:u-boot-users-admin at lists.sourceforge.net]On Behalf Of Wolfgang
Denk
Sent: Wednesday, April 02, 2003 3:13 PM
To: jwalden at digitalatlantic.com
Cc: U-Boot-Users at Lists. Sourceforge. Net
Subject: Re: [U-Boot-Users] RE: start / load addresses for initrd

Jerry,

in message <EGEGIJHKDKJGAJMGIDPNEEGNCKAA.jwalden at digitalatlantic.com> you
wrote:
>
> I was getting the error:
> (RAMDISK: incomplete write (ramdisk too small?) (-28!= 32768)
>  and then I discovered the my command line option ramdisk_size=8192 needs
to
>  be changed to ramdisk_size=16384.

What makes you think so? I think you are wrong.

> > ## Loading RAMDisk Image at 00200000 ...
> > Image Name:   DA Ramdisk Image
> > Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
> > Data Size:    1509352 Bytes =  1.4 MB

Given a compressed size of 1.4 MB, the contents of the  ramdisk  will
be probably in the range of 3...4 MB. Did you really create a ramdisk
16 MB big?

> > RAMDISK: Couldn't find valid RAM disk image starting at 0.
> > Freeing initrd memory: 1473k freed
> > Kernel panic: VFS: Unable to mount root fs on 01:00

Again, I see no indication that  you  really  have  a  good,  working
ramdisk image. I think you should ask MV support for help.

Alternmatively, you could try using a known-to-work ramdisk image for
a start, for example one from here:
ftp://ftp.denx.de/pub/LinuxPPC/usr/src/SELF/images/

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
I don't know if it's what you want, but it's what you get.  :-)
                      - Larry Wall in <10502 at jpl-devvax.JPL.NASA.GOV>

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