linux booting using ramdisk

DISCUSSION Nethra 3 participants 3 messages Jan 23, 2007

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Nethra

author

2007-01-23 04:17 UTC #0 lore raw

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@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 [email protected]). 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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emre kara

2007-01-23 07:40 UTC #1 lore raw

Hi,
Try to increase default ramdisk size on kernel
configuration.

Quoted 19 lines · --- Nethra

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

Quoted 9 lines

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:

#################################################################

Quoted 2 lines

#################################################################

Quoted 2 lines

#######################################################

Quoted 10 lines

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:

#################################################################

Quoted 2 lines

#################################################################

Quoted 2 lines

#################################################################

Quoted 2 lines

#################################################################

Quoted 2 lines

#################################################################

Quoted 2 lines

#################################################################

Quoted 2 lines

#################################################################

Quoted 2 lines

#################################################################

Quoted 83 lines

         ###################
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@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 [email protected]).
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

Quoted 13 lines

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?
Signature · 1 line
View this message in context:

http://www.nabble.com/linux-booting-using-ramdisk-tf3062233.html#a8515241

Quoted 7 lines

Sent from the linuxppc-embedded mailing list archive at Nabble.com.
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Quoted 1 line

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Wolfgang Denk

2007-01-23 18:49 UTC #2 lore raw

Quoted 3 lines · In message <[email protected]> you wrote:

Try to increase default ramdisk size on kernel
configuration.

...or pass a ramdisksize boot argument.

Best regards,

Wolfgang Denk

Signature · 3 lines

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
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