* Re: [9fans] pxeload nvram
@ 2009-11-02 20:32 Francisco J Ballesteros
0 siblings, 0 replies; 6+ messages in thread
From: Francisco J Ballesteros @ 2009-11-02 20:32 UTC (permalink / raw)
To: 9fans
iirc you could put nvram=/dev/sdU...
in plan9.ini.
On 02/11/2009, at 20:52, 9nut@9netics.com wrote:
>> iirc it's ok to put the nvram in a
>> USB disk dongle.
>
> how is it specified? i can't find any references.
>
>
> [/mail/box/nemo/msgs/200911/113]
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] pxeload nvram
[not found] <<F199679A-1998-4100-BA44-AE7DBA583730@lsub.org>
@ 2009-11-02 21:45 ` erik quanstrom
0 siblings, 0 replies; 6+ messages in thread
From: erik quanstrom @ 2009-11-02 21:45 UTC (permalink / raw)
To: 9fans
On Mon Nov 2 15:34:25 EST 2009, nemo@lsub.org wrote:
> iirc you could put nvram=/dev/sdU...
> in plan9.ini.
this patch, mentioned at iwp9, will also solve the
problem without mangling plan9.ini:
/n/sources/plan9//sys/src/libauthsrv/readnvram.c:25,46 - readnvram.c:25,32
int len;
} nvtab[] = {
"sparc", "#r/nvram", 1024+850, sizeof(Nvrsafe),
- "pc", "#S/sdC0/nvram", 0, sizeof(Nvrsafe),
- "pc", "#S/sdC0/9fat", -1, sizeof(Nvrsafe),
- "pc", "#S/sdC1/nvram", 0, sizeof(Nvrsafe),
- "pc", "#S/sdC1/9fat", -1, sizeof(Nvrsafe),
- "pc", "#S/sdD0/nvram", 0, sizeof(Nvrsafe),
- "pc", "#S/sdD0/9fat", -1, sizeof(Nvrsafe),
- "pc", "#S/sdE0/nvram", 0, sizeof(Nvrsafe),
- "pc", "#S/sdE0/9fat", -1, sizeof(Nvrsafe),
- "pc", "#S/sdF0/nvram", 0, sizeof(Nvrsafe),
- "pc", "#S/sdF0/9fat", -1, sizeof(Nvrsafe),
- "pc", "#S/sd00/nvram", 0, sizeof(Nvrsafe),
- "pc", "#S/sd00/9fat", -1, sizeof(Nvrsafe),
- "pc", "#S/sd01/nvram", 0, sizeof(Nvrsafe),
- "pc", "#S/sd01/9fat", -1, sizeof(Nvrsafe),
- "pc", "#S/sd10/nvram", 0, sizeof(Nvrsafe),
- "pc", "#S/sd10/9fat", -1, sizeof(Nvrsafe),
+ "pc", "#S/%s%x/9fat", -1, 512,
+ "pc", "#S/%s%x/nvram", 0, 512,
"pc", "#f/fd0disk", -1, 512, /* 512: #f requires whole sector reads */
"pc", "#f/fd1disk", -1, 512,
"mips", "#r/nvram", 1024+900, sizeof(Nvrsafe),
/n/sources/plan9//sys/src/libauthsrv/readnvram.c:123,128 - readnvram.c:109,152
}
}
+ static int
+ sdnvram0(char *s, int l, int tabi)
+ {
+ char *p, *f[3], buf[16];
+ int fd, i;
+
+ s[l] = 0;
+ for(; p = strchr(s, '\n'); s = p + 1){
+ if(tokenize(s, f, nelem(f)) < 1)
+ continue;
+ for(i = 0; i < 0x10; i++){
+ snprint(buf, sizeof buf, nvtab[tabi].file, f[0], i);
+ if((fd = open(buf, ORDWR)) >= 0)
+ return fd;
+ }
+ }
+ return -1;
+ }
+
+ static int
+ sdnvram(int tabi)
+ {
+ char *s;
+ int fd, l, r;
+
+ fd = open("#S/sdctl", OREAD);
+ if(fd == -1)
+ return -1;
+ r = -1;
+ l = 1024; /* #S/sdctl has 0 size; guess */
+ if(s = malloc(l + 1))
+ if((l = read(fd, s, l)) > 0)
+ r = sdnvram0(s, l, tabi);
+ free(s);
+ close(fd);
+ return r;
+ }
+
typedef struct {
int fd;
int safeoff;
/n/sources/plan9//sys/src/libauthsrv/readnvram.c:185,191 - readnvram.c:209,219
for(i=0; i<nelem(nvtab); i++){
if(strcmp(cputype, nvtab[i].cputype) != 0)
continue;
- if((fd = open(nvtab[i].file, ORDWR)) < 0)
+ if(nvtab[i].file[0] == '#' && nvtab[i].file[1] == 'S')
+ fd = sdnvram(i);
+ else
+ fd = open(nvtab[i].file, ORDWR);
+ if(fd < 0)
continue;
safeoff = nvtab[i].off;
safelen = nvtab[i].len;
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] pxeload nvram
2009-11-02 18:29 Francisco J Ballesteros
@ 2009-11-02 19:51 ` Skip Tavakkolian
0 siblings, 0 replies; 6+ messages in thread
From: Skip Tavakkolian @ 2009-11-02 19:51 UTC (permalink / raw)
To: 9fans
> iirc it's ok to put the nvram in a
> USB disk dongle.
how is it specified? i can't find any references.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] pxeload nvram
@ 2009-11-02 18:29 Francisco J Ballesteros
2009-11-02 19:51 ` Skip Tavakkolian
0 siblings, 1 reply; 6+ messages in thread
From: Francisco J Ballesteros @ 2009-11-02 18:29 UTC (permalink / raw)
To: 9fans
iirc it's ok to put the nvram in a
USB disk dongle.
On 02/11/2009, at 18:59, 9nut@9netics.com wrote:
> i need to pxeboot several cpus -- remote sensors -- with only usb
> storage. here's an old thread for the same thing. is there a
> solution?
>
> http://groups.google.com/group/comp.os.plan9/browse_thread/thread/db9236f5f8f740bd/66707c18718f8e7c?lnk=gst&q=pxe+boot+nvram+usb#66707c18718f8e7c
>
>
> [/mail/box/nemo/msgs/200911/100]
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] pxeload nvram
2009-11-02 17:58 Skip Tavakkolian
@ 2009-11-02 18:18 ` erik quanstrom
0 siblings, 0 replies; 6+ messages in thread
From: erik quanstrom @ 2009-11-02 18:18 UTC (permalink / raw)
To: 9fans
On Mon Nov 2 13:08:47 EST 2009, 9nut@9netics.com wrote:
> i need to pxeboot several cpus -- remote sensors -- with only usb
> storage. here's an old thread for the same thing. is there a
> solution?
>
aoe storage?
- erik
^ permalink raw reply [flat|nested] 6+ messages in thread
* [9fans] pxeload nvram
@ 2009-11-02 17:58 Skip Tavakkolian
2009-11-02 18:18 ` erik quanstrom
0 siblings, 1 reply; 6+ messages in thread
From: Skip Tavakkolian @ 2009-11-02 17:58 UTC (permalink / raw)
To: 9fans
i need to pxeboot several cpus -- remote sensors -- with only usb
storage. here's an old thread for the same thing. is there a
solution?
http://groups.google.com/group/comp.os.plan9/browse_thread/thread/db9236f5f8f740bd/66707c18718f8e7c?lnk=gst&q=pxe+boot+nvram+usb#66707c18718f8e7c
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2009-11-02 21:45 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2009-11-02 20:32 [9fans] pxeload nvram Francisco J Ballesteros
[not found] <<F199679A-1998-4100-BA44-AE7DBA583730@lsub.org>
2009-11-02 21:45 ` erik quanstrom
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2009-11-02 18:29 Francisco J Ballesteros
2009-11-02 19:51 ` Skip Tavakkolian
2009-11-02 17:58 Skip Tavakkolian
2009-11-02 18:18 ` erik quanstrom
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