Hamish Greig napsal(a):
On Tuesday 05 September 2006 17:45, Rene Rebe wrote:
I used elftoaout + the piggyback helper in arch/sparc64.
I too have successfully used these two for netbooting.
hgg
Thanks, you kick me to rigt way. I use piggyback from sparc directory. I test
before piggiback64 but that says nothing and I think that doesn't work.
But now I read source make simple patch to display status of working piggyback
and woala all works piggyback64 doesn't write new file but modify kenel directly.
Thanks
Dan
--- linux-2.6.18-rc3/arch/sparc64/boot/piggyback.c 2006-03-20 06:53:29.000000000 +0100
+++ linux-2.6.17.2/arch/sparc64/boot/piggyback.c 2006-09-05 19:59:37.000000000 +0200
@@ -45,6 +45,7 @@
FILE *map;
struct stat s;
int image, tail;
+
if (stat (argv[3], &s) < 0) die (argv[3]);
map = fopen (argv[2], "r");
@@ -55,6 +56,7 @@
else if (!strcmp (buffer + 19, "_end\n"))
end = strtoul (buffer + 8, NULL, 16);
}
+ printf("start: 0x%x end: 0x%x \n",start,end);
fclose (map);
if ((image = open(argv[1],O_RDWR)) < 0) die(argv[1]);
if (read(image,buffer,512) != 512) die(argv[1]);
@@ -88,6 +90,7 @@
}
offset = i + (q - buffer) + 10;
}
+
if (lseek(image, offset, 0) < 0) die ("lseek");
*(unsigned *)buffer = 0;
*(unsigned *)(buffer + 4) = 0x01000000;
@@ -101,8 +104,15 @@
if (write(image,buffer,12) != 12) die (argv[1]);
if (lseek(image, k - start + ((end + 32 + 8191) & ~8191), 0) < 0) die ("lseek");
if ((tail = open(argv[3],O_RDONLY)) < 0) die(argv[3]);
+ printf("Writing ...");
while ((i = read (tail,buffer,1024)) > 0)
+ {
if (write(image,buffer,i) != i) die (argv[1]);
+ printf(".");
+
+ }
+ printf(".done\n");
+ printf("%s updated \n",argv[1]);
if (close(image) < 0) die("close");
if (close(tail) < 0) die("close");
return 0;
