Change your kernel command line to the following and it is likely your NFS mount errors will go away. I also use the 'tcp' option at times, as it further reduced communication problems, you do have to have compiled the server to support the tcp option.

root=/dev/nfs rw nfsroot=192.168.55.1:/opt/eldk_3_0/ppc_82xx,rsize=1024,wsize=1024,nolock ip=192.168.55.3:192.168.55.1::255.255.255.0:::off

If you read the NFS FAQ you will understand why these can help. They certainly help underpowered ARM's work vastly better over NFS.

Regards,

Richard W.

-----Original Message----- From: u-boot-users-admin@lists.sourceforge.net [mailto:u-boot-users- admin@lists.sourceforge.net] On Behalf Of Marco Schramel Sent: Thursday, June 03, 2004 4:04 AM To: U-BOOT Subject: [U-Boot-Users] NFS problem

hi all,

my 8270 board (2.4.26, u-boot 1.0.1, ELDK3.0) can't boot over NFS.

The messages are ..

=> bootm 100000 ## Booting image at 00100000 ... Image Name: Linux-2.4.26-rc2 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 723855 Bytes = 706.9 kB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK Memory BAT mapping: BAT2=32Mb, BAT3=0Mb, residual: 0Mb Linux version 2.4.26-rc2 (marco@linux) (gcc-Version 3.2.2 20030217

(Yellow

Dog Linux 3.0 3.2.2-2a_1)) #2 Do Mai 27 08:48:15 CEST 2004 On node 0 totalpages: 8192 zone(0): 8192 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: root=/dev/nfs rw nfsroot=192.168.55.1:/opt/eldk_3_0/ppc_82xx ip=192.168.55.3:192.168.55.1::255.255.255.0:::off Warning: real time clock seems stuck! Calibrating delay loop... 131.89 BogoMIPS Memory: 30624k available (1260k kernel code, 432k data, 56k init, 0k highmem) Dentry cache hash table entries: 4096 (order: 3, 32768 bytes) Inode cache hash table entries: 2048 (order: 2, 16384 bytes) Mount cache hash table entries: 512 (order: 0, 4096 bytes) Buffer cache hash table entries: 1024 (order: 0, 4096 bytes) Page-cache hash table entries: 8192 (order: 3, 32768 bytes) POSIX conformance testing by UNIFIX Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket Starting kswapd Installing knfsd (copyright (C) 1996 okir@monad.swb.de). JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis

Communications

AB. CPM UART driver version 0.01 ttyS0 on SCC1 at 0x8000, BRG1 ttyS1 on SCC2 at 0x8100, BRG2 pty: 256 Unix98 ptys configured eth0: FCC ENET Version 0.3 , 00:11:22:73:44:55 RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize loop: loaded (max 8 devices) NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP IP: routing cache hash table of 512 buckets, 4Kbytes TCP: Hash tables configured (established 2048 bind 4096) IP-Config: Complete: device=eth0, addr=192.168.55.3, mask=255.255.255.0, gw=255.255.255.255, host=192.168.55.3, domain=, nis-domain=(none), bootserver=192.168.55.1, rootserver=192.168.55.1, rootpath= NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. Looking up port of RPC 100003/2 on 192.168.55.1 Looking up port of RPC 100005/1 on 192.168.55.1 VFS: Mounted root (nfs filesystem). Freeing unused kernel memory: 56k init INIT: version 2.84 booting Welcome to DENX Embedded Linux Environment Press 'I' to enter interactive startup. Building the cache nfs: server 192.168.55.1 not responding, still

trying

nfs: server 192.168.55.1 OK nfs: server 192.168.55.1 not responding, still trying nfs: server 192.168.55.1 OK [ OK ] Mounting proc filesystem:

'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' ''

'''''''''''''''''' than it hangs ... sometimes it gets on a little bit, sometimes not... Most time it hangs on "INIT: version 2.84 booting"

Any ideas ??

Why the "rootpath" isnt passed to the kernel? Are the domain and nis-domain necessary for booting ?? With an initrd it works fine and i can ping the target and reverse.

Thanks for your ideas

Marco

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Marco Schramel R&D Bartec GmbH Schulstr. 30 94239 Gotteszell, Germany www.bartec.de Marco.Schramel@go.bartec.de Phone: +49 (0)9929/301332 Fax: +49 (0)9929/301112

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