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NFS ROOT Problem - boot (newbie)

To: <>
Subject: NFS ROOT Problem - boot (newbie)
From: "Robert Rusek" <>
Date: Wed, 13 Feb 2002 11:07:44 -0800
Importance: Normal
I am relatively new to this.  I am trying to boot to an nfs root on my
PC RedHat 7.2 box.  I downloaded the nfs image from
(nfsroot.mips.redhat7.1.eb-01.00.tar.gz).  I have a working 2.4.3 kernel
that I have installed on a SGI.  I need to boot to the nfs image so that
I can install to a local drive.  I have setup nfs on my PC RedHat 7.2
box and it is working.   When I boot the kernel on my SGI as follows:

>> boot nfsroot= ip=

I get the following:


1503232+0+147092 entry: 0x880025a8
PROMLIB: ARC firmware Version 1 Revision 10
Loading R4000 MMU routines.
CPU revision is: 00002310
Primary instruction cache 32kb, linesize 32 bytes.
Primary data cache 32kb, linesize 32 bytes.
Linux version 2.4.3 (flo@paradigm) (gcc version 3.0 20010303
(prerelease)) #1 Thu Apr 12 22:38:03
CEST 2001
MC: SGI memory controller Revision 3
R4600/R5000 SCACHE size 512K, linesize 32 bytes.
Determined physical RAM map:
 memory: 00001000 @ 00000000 (reserved)
 memory: 00001000 @ 00001000 (reserved)
 memory: 00193000 @ 08002000 (reserved)
 memory: 005ab000 @ 08195000 (usable)
 memory: 000c0000 @ 08740000 (ROM data)
 memory: 03800000 @ 08800000 (usable)
On node 0 totalpages: 49152
zone(0): 49152 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=scsi(0)disk(1)rdisk(0)partition(0)
nfsroot= ip=
Calibrating system timer... 900000 [180.00 MHz CPU]
zs0: console input
Console: ttyS0 (Zilog8530)
Calibrating delay loop... 179.81 BogoMIPS
Memory: 60056k/63148k available (1311k kernel code, 3092k reserved, 83k
data, 72k init)
Dentry-cache hash table entries: 32768 (order: 6, 262144 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
Checking for 'wait' instruction...  available.
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
initialize_kbd: Keyboard reset failed, no ACK
pty: 256 Unix98 ptys configured
keyboard: Timeout - AT keyboard not present?
keyboard: Timeout - AT keyboard not present?
DS1286 Real Time Clock Driver v1.0
streamable misc devices registered (keyb:150, gfx:148)
block: queued sectors max/low 39482kB/13160kB, 128 slots per queue
sgiseeq.c: David S. Miller (

eth0: SGI Seeq8003 08:00:69:0a:31:7a
SCSI subsystem driver Revision: 1.00
wd33c93-0: chip=WD33c93B/13 no_sync=0xff no_dma=0 debug_flags=0x00
           Version 1.25 - 09/Jul/1997, Compiled Apr 12 2001 at 22:38:57
scsi0 : SGI WD93
 sending SDTR 0103013f0csync_xfer=2c  Vendor: SGI       Model: IBM
DORS-32160    Rev: W80D
  Type:   Direct-Access                      ANSI SCSI revision: 02
 sending SDTR 0103013f0csync_xfer=2c  Vendor: SGI       Model: SEAGATE
ST51080N  Rev: 0950
  Type:   Direct-Access                      ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 1, lun 0
Detected scsi disk sdb at scsi0, channel 0, id 2, lun 0
SCSI device sda: 4197405 512-byte hdwr sectors (2149 MB)
Partition check:
 sda: sda1 sda2 sda3 sda4
SCSI device sdb: 2070235 512-byte hdwr sectors (1060 MB)
 sdb: sdb1 sdb2 sdb3 sdb4
SGI Zilog8530 serial driver version 1.00
tty00 at 0xbfbd9830 (irq = 21) is a Zilog8530
tty01 at 0xbfbd9838 (irq = 21) is a Zilog8530
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 32768)
IP-Config: Guessing netmask
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on
Looking up port of RPC 100005/2 on
VFS: Mounted root (nfs filesystem) readonly.
Freeing prom memory: 768kb freed
Freeing unused kernel memory: 72k freed
nfs: server not responding, still trying


It seems that it initially finds the root on the nfs box but it never
get to do an init.  It just stops and waits...  Do I need to modify any
setting manually on my NFS image in order for the kernel to boot?

Robert Rusek

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