linux booting using ramdisk

Tue Jan 23 18:33:27 EST 2007

Hi,
Try to increase default ramdisk size on kernel
configuration.
--- Nethra <nethra_gmit at yahoo.co.in> wrote:

> 
> hi,
>  I am using MPC8272ADS board.I am getting fallowing
> error for kernel
> booting...
> => printenv
> bootdelay=5
> baudrate=115200
> ethact=FCC2 ETHERNET
> filesize=23a19c
> fileaddr=300000
> ipaddr=192.168.174.231
> serverip=192.168.178.110
> ethaddr=00:99:23:44:ad:de
> stdin=serial
> stdout=serial
> stderr=serial
> bootargs=root=/dev/ram
> 
> Environment size: 219/262140 bytes
> => tftpboot 0x400000 8272ADS_ramdisk_img
> Using FCC2 ETHERNET device
> TFTP from server 192.168.178.110; our IP address is
> 192.168.174.231
> Filename '8272ADS_ramdisk_img'.
> Load address: 0x400000
> Loading:
>
#################################################################
>         
>
#################################################################
>         
>
#######################################################
> done
> Bytes transferred = 942521 (e61b9 hex)
> => tftpboot 0x500000 ramdisk.new
> Using FCC2 ETHERNET device
> TFTP from server 192.168.178.110; our IP address is
> 192.168.174.231
> Filename 'ramdisk.new'.
> Load address: 0x500000
> Loading:
>
#################################################################
>         
>
#################################################################
>         
>
#################################################################
>         
>
#################################################################
>         
>
#################################################################
>         
>
#################################################################
>         
>
#################################################################
>         
>
#################################################################
>          ###################
> done
> Bytes transferred = 2758997 (2a1955 hex)
> => bootm 0x400000 0x500000
> ## Booting image at 00400000 ...
>    Image Name:   Linux-2.6.10_mvl401-8272ads
>    Image Type:   PowerPC Linux Kernel Image (gzip
> compressed)
>    Data Size:    942457 Bytes = 920.4 kB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
>    Uncompressing Kernel Image ... OK
> ## Loading RAMDisk Image at 00500000 ...
>    Image Name:   uImage.ramdisk
>    Image Type:   PowerPC Linux RAMDisk Image (gzip
> compressed)
>    Data Size:    2758933 Bytes =  2.6 MB
>    Load Address: 00000000
>    Entry Point:  00000000
>    Verifying Checksum ... OK
>    Loading Ramdisk to 038e6000, end 03b87915 ... OK
> Linux version 2.6.10_mvl401-8272ads (root at em178110)
> (gcc version 3.4.3
> (MontaVi7
> Motorola PQ2 ADS PowerPC port
> Built 1 zonelists
> Kernel command line: root=/dev/ram
> PID hash table entries: 512 (order: 9, 8192 bytes)
> hr_time_init: arch_to_nsec = 83886080, nsec_to_arch
> = 107374182
> Warning: real time clock seems stuck!
> Dentry cache hash table entries: 16384 (order: 4,
> 65536 bytes)
> Inode-cache hash table entries: 8192 (order: 3,
> 32768 bytes)
> Memory: 59888k available (1684k kernel code, 468k
> data, 88k init, 0k
> highmem)
> Mount-cache hash table entries: 512 (order: 0, 4096
> bytes)
> spawn_desched_task(00000000)
> desched cpu_callback 3/00000000
> ksoftirqd started up.
> desched cpu_callback 2/00000000
> checking if image is initramfs...desched thread 0
> started up.
> it isn't (no cpio magic); looks like an initrd
> Freeing initrd memory: 2694k freed
> NET: Registered protocol family 16
> mpc8272ads: Init
> Installing knfsd (copyright (C) 1996
> okir at monad.swb.de).
> Initializing Cryptographic API
> Serial: CPM driver $Revision: 0.01 $
> ttyCPM0 at MMIO 0xf0011a00 (irq = 40) is a CPM UART
> ttyCPM1 at MMIO 0xf0011a60 (irq = 43) is a CPM UART
> io scheduler noop registered
> io scheduler anticipatory registered
> io scheduler deadline registered
> io scheduler cfq registered
> RAMDISK driver initialized: 16 RAM disks of 8192K
> size 1024 blocksize
> loop: loaded (max 8 devices)
> fs_enet.c:v1.0 (Aug 8, 2005)
> fs_enet: eth0 Phy @ 0x0, type DM9161 (0x0181b881)
> fs_enet: eth1 Phy @ 0x3, type DM9161 (0x0181b881)
> Uniform Multi-Platform E-IDE driver Revision:
> 7.00alpha2
> ide: Assuming 50MHz system bus speed for PIO modes;
> override with idebus=xx
> eth2: FCC ENET Version 0.3, 00:99:23:c4:ad:de
> eth3: FCC ENET Version 0.3, 00:99:23:44:ad:de
> eth4: FCC ENET Version 0.3, 00:99:23:64:ad:de
> NET: Registered protocol family 2
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 4096 bind
> 8192)
> NET: Registered protocol family 1
> NET: Registered protocol family 17
> RAMDISK: Compressed image found at block 0
> RAMDISK: incomplete write (-28 != 32768) 8388608
> Kernel panic - not syncing: VFS: Unable to mount
> root fs on
> unknown-block(1,0)
>  <0>Rebooting in 180 seconds..
> 
> what may be the problem?
> I have root file system then..can i create fresh
> ramdisk image..if yes then
> how to create it?
> 
> 
> -- 
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>
http://www.nabble.com/linux-booting-using-ramdisk-tf3062233.html#a8515241
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> at Nabble.com.
> 
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