Help needed to boot kernel with nfsroot

christophe leroy (christophe.leroy5@capway.com)
Wed, 24 Feb 1999 16:19:50 +0000


I dont know if it is arm or kernel related so I'm writing to
both lists

I've tried to boot Linux on an EBSA285 arm based card, with nfsroot
Kernel 2.2.1, patched for arm

I've got three problems:
* some times, when the kernel is sending rarp requests, tcpdump tells
arp-#65535 for proto #65535 (255) hardware #1(255)
and the server never responds
* some other times, I get good rarp requests, the rarp server responds
but the client never get the response.

* And most of the time, rarp works, then the client looks for
RPC 100003/2 and gets a response, then it looks for
RPC 100005/1 and never gets the response. I've tried with
portmap_4 and portmap_5beta, it's the same

Here are rpcinfo -p output and tcpdump output

program vers proto port
100000 2 tcp 111
100000 2 udp 111
100003 2 udp 2049
100021 1 udp 1024
100021 3 udp 1024
100021 1 tcp 1024
100021 3 tcp 1024
100005 1 udp 671
100005 1 tcp 673
100005 2 udp 676
100005 2 tcp 678
100005 3 udp 681
100005 3 tcp 683

15:55:20.355039 rarp who-is 0:10:4b:4b:4c:7e tell 0:10:4b:4b:4c:7e
15:55:20.355114 rarp reply 0:10:4b:4b:4c:7e at strongarm
15:55:20.476786 arp who-has dcs tell strongarm
15:55:20.476866 arp reply dcs is-at 2:7:1:1b:df:70
15:55:20.477259 strongarm.800 > dcs.sunrpc: udp 56
15:55:20.478016 dcs.sunrpc > strongarm.800: udp 28
15:55:20.528471 strongarm.800 > dcs.sunrpc: udp 56
15:55:25.470053 arp who-has strongarm tell dcs
15:55:25.470442 arp reply strongarm is-at 0:10:4b:4b:4c:7e
15:55:25.525558 strongarm.800 > dcs.sunrpc: udp 56
15:55:30.525336 arp who-has dcs tell strongarm
15:55:30.525405 arp reply dcs is-at 2:7:1:1b:df:70
15:55:35.525703 strongarm.800 > dcs.sunrpc: udp 56
15:55:50.526013 strongarm.800 > dcs.sunrpc: udp 56
15:56:10.642766 strongarm.800 > dcs.sunrpc: udp 56
15:56:15.636498 strongarm.800 > dcs.627: udp 64
15:56:25.636709 strongarm.800 > dcs.627: udp 64
15:56:40.637021 strongarm.800 > dcs.627: udp 64

christophe

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