Date: Thu, 28 Mar 2013 11:26:46 +0100 From: Mattia Rossi <mattia.rossi.mailinglists@gmail.com> To: Ian Lepore <ian@FreeBSD.org> Cc: freebsd-arm@FreeBSD.org Subject: Re: Dreamplug, BOOTP, NFS root, DHCP Message-ID: <51541AE6.1090101@gmail.com> In-Reply-To: <1364351344.36972.35.camel@revolution.hippie.lan> References: <CANUZKk=br6XfdzT0g4sAs0HeYvrsSntmEAPcLf=fUG8uwBezeQ@mail.gmail.com> <1364351344.36972.35.camel@revolution.hippie.lan>
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Am 27.03.2013 03:29, schrieb Ian Lepore: > On Tue, 2013-03-26 at 19:11 +0100, Mattia Rossi wrote: >> Hi all, >> >> I'm currently trying to set up my Dreamplug again, which should be quite >> easy thanks to the neat work don by Ian. >> >> I've just made a mistake when uploading the new world to the dreamplug and >> unpacking it, so I've trashed my world on the Dreamplug's internal SD card. >> >> The logical workaround would be to mount the new world via NFS, then copy >> it onto the SD and voila, problem solved. >> >> Not the case though. >> First I've tried to mount the NFS root without enabling BOOTP, as the root >> path is already set in ROOTDEVNAME. No luck, but you of course know that, >> as Lars (Eggert) had the same issues not too long ago, and Ian filed a bug >> for it. Quick question: what's the progress there? >> >> So, next step was to enable BOOTP and all the necessary options in the >> kernel, and to set up a DHCP server. Should be easy and straigthforward, >> but here comes the interesting part: >> I already have a DHCP server in the crappy modem I've got. I've decided to >> ignore that, and just set up a second range for the DHCP server on the >> FreeBSD machine, which distributes the root-path with it. With the two DHCP >> servers on the network, I get a kernel panic: >> >> <snip> >> bootpc_init: wired to interface 'mge0' >> Sending DHCP Discover packet from interface mge0 (f0:ad:4e:00:84:c7) >> uhub0: 1 port with 1 removable, self powered >> mge0: link state changed to UP >> Received DHCP Offer packet on mge0 from 192.168.0.1 (accepted) (no root >> path) >> ugen0.2: <vendor 0x1a40> at usbus0 >> uhub1: <vendor 0x1a40 USB 2.0 Hub, class 9/0, rev 2.00/1.11, addr 2> on >> usbus0 >> Received DHCP Offer packet on mge0 from 192.168.0.1 (accepted) (no root >> path) >> uhub1: 4 ports with 4 removable, self powered >> ugen0.3: <vendor 0x05e3> at usbus0 >> umass0: <vendor 0x05e3 USB Storage, class 0/0, rev 2.00/99.10, addr 3> on >> usbus0 >> da0 at umass-sim0 bus 0 scbus2 target 0 lun 0 >> da0: <Generic STORAGE DEVICE 9910> Removable Direct Access SCSI-0 device >> da0: 40.000MB/s transfers >> da0: 1876MB (3842048 512 byte sectors: 255H 63S/T 239C) >> da1 at umass-sim0 bus 0 scbus2 target 0 lun 1 >> da1: <Generic STORAGE DEVICE 9910> Removable Direct Access SCSI-0 device >> da1: 40.000MB/s transfers >> da1: 974MB (1995264 512 byte sectors: 64H 32S/T 974C) >> Sending DHCP Request packet from interface mge0 (f0:ad:4e:00:84:c7) >> Received DHCP Ack packet on mge0 from 192.168.0.1 (accepted) (got root path) >> ugen0.4: <vendor 0x0d8c> at usbus0 >> uaudio0: <vendor 0x0d8c C-Media USB Headphone Set, class 0/0, rev >> 1.10/1.00, ad0 >> uaudio0: Play: 48000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. >> uaudio0: Record: 48000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer. >> uaudio0: No MIDI sequencer. >> pcm0: <USB audio> on uaudio0 >> uaudio0: HID volume keys found. >> Received DHCP Ack packet on mge0 from 192.168.0.1 (accepted) (no root path) >> mge0 at 192.168.0.21 server 192.168.0.1 >> subnet mask 255.255.255.0 router 192.168.0.1 >> Adjusted interface mge0 >> panic: nfs_boot: mountd root, error=47 >> KDB: enter: panic >> [ thread pid 0 tid 100000 ] >> Stopped at kdb_enter+0x48: ldrb r15, [r15, r15, ror r15]! >> db> >> >> With just the DHCP server on the modem: >> >> <snip> >> bootpc_init: wired to interface 'mge0' >> Sending DHCP Discover packet from interface mge0 (f0:ad:4e:00:84:c7) >> uhub0: 1 port with 1 removable, self powered >> mge0: link state changed to UP >> Received DHCP Offer packet on mge0 from 192.168.0.1 (accepted) (no root >> path) >> ugen0.2: <vendor 0x1a40> at usbus0 >> uhub1: <vendor 0x1a40 USB 2.0 Hub, class 9/0, rev 2.00/1.11, addr 2> on >> usbus0 >> uhub1: 4 ports with 4 removable, self powered >> Sending DHCP Request packet from interface mge0 (f0:ad:4e:00:84:c7) >> ugen0.3: <vendor 0x05e3> at usbus0 >> umass0: <vendor 0x05e3 USB Storage, class 0/0, rev 2.00/99.10, addr 3> on >> usbus0 >> da0 at umass-sim0 bus 0 scbus2 target 0 lun 0 >> da0: <Generic STORAGE DEVICE 9910> Removable Direct Access SCSI-0 device >> da0: 40.000MB/s transfers >> da0: 1876MB (3842048 512 byte sectors: 255H 63S/T 239C) >> da1 at umass-sim0 bus 0 scbus2 target 0 lun 1 >> da1: <Generic STORAGE DEVICE 9910> Removable Direct Access SCSI-0 device >> da1: 40.000MB/s transfers >> da1: 974MB (1995264 512 byte sectors: 64H 32S/T 974C) >> Received DHCP Ack packet on mge0 from 192.168.0.1 (accepted) (no root path) >> ugen0.4: <vendor 0x0d8c> at usbus0 >> uaudio0: <vendor 0x0d8c C-Media USB Headphone Set, class 0/0, rev >> 1.10/1.00, ad0 >> uaudio0: Play: 48000 Hz, 2 ch, 16-bit S-LE PCM format, 2x8ms buffer. >> uaudio0: Record: 48000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer. >> uaudio0: No MIDI sequencer. >> pcm0: <USB audio> on uaudio0 >> uaudio0: HID volume keys found. >> Received DHCP Ack packet on mge0 from 192.168.0.1 (accepted) (no root path) >> Received DHCP Ack packet on mge0 from 192.168.0.1 (accepted) (no root path) >> DHCP/BOOTP timeout for server 255.255.255.255 >> Received DHCP Ack packet on mge0 from 192.168.0.1 (accepted) (no root path) >> DHCP/BOOTP timeout for server 255.255.255.255 >> Received DHCP Ack packet on mge0 from 192.168.0.1 (accepted) (no root path) >> DHCP/BOOTP timeout for server 255.255.255.255 >> Received DHCP Ack packet on mge0 from 192.168.0.1 (accepted) (no root path) >> DHCP/BOOTP timeout for server 255.255.255.255 >> Received DHCP Ack packet on mge0 from 192.168.0.1 (accepted) (no root path) >> DHCP/BOOTP timeout for server 255.255.255.255 >> Received DHCP Ack packet on mge0 from 192.168.0.1 (accepted) (no root path) >> DHCP/BOOTP timeout for server 255.255.255.255 >> Received DHCP Ack packet on mge0 from 192.168.0.1 (accepted) (no root path) >> DHCP/BOOTP timeout for server 255.255.255.255 >> <and so on> >> >> no panic, just waiting for a root path. >> >> Help? >> Can't turn off the DHCP on the modem, as I have limited rights, and it's >> crap. >> >> Mat > I've only got a few minutes available right now, so not much to offer, > except... could you put a world on a usb thumb drive and recompile the > kernel for a /dev/daNxx root path? Even better would be a world on an > eSata drive if you have one. (One of those multi-slot docks that holds > a couple drives and is both a usb dock and an eSata port multiplier, is > a nifty thing for a dreamplug owner to have.) > Hi Ian, thanks for the tip, I just didn't think about that.. it's great to have that choice of connectivity on the Dreamplug :-) Now I've been able to install world again, and it seems to basically work. Next step is to check which devices are not supported yet, and to figure out what and if I'm able to do something there. Cheers, and thanks again for the Kernel conf and dts file. They work like a charm so far. Mat
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