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pxe: parse initrd file from append string

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For syslinux, the initrd can be set in the append string as
"initrd=<file>", so try to find it there if we haven't already set the
initrd.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
This commit is contained in:
Rob Herring 2012-03-28 05:51:37 +00:00 • committed by Wolfgang Denk
parent 90ba7d7c44
commit 34bd23e42f
2 changed files with 14 additions and 4 deletions
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15
common/cmd_pxe.c
View file

@ -999,6 +999,7 @@ static int parse_label_menu(char **c, struct pxe_menu *cfg,
static int parse_label(char **c, struct pxe_menu *cfg)
{
struct token t;
int len;
char *s = *c;
struct pxe_label *label;
int err;
@ -1033,10 +1034,22 @@ static int parse_label(char **c, struct pxe_menu *cfg)
case T_APPEND:
err = parse_sliteral(c, &label->append);
if (label->initrd)
break;
s = strstr(label->append, "initrd=");
if (!s)
break;
s += 7;
len = (int)(strchr(s, ' ') - s);
label->initrd = malloc(len + 1);
strncpy(label->initrd, s, len);
label->initrd[len] = '\0';
break;
case T_INITRD:
err = parse_sliteral(c, &label->initrd);
if (!label->initrd)
err = parse_sliteral(c, &label->initrd);
break;
case T_LOCALBOOT:

3
doc/README.pxe
View file

@ -224,9 +224,6 @@ PXELINUX and U-boot's pxe support.
- U-boot's pxe expects U-boot uimg's as kernels. Anything that would work
with the 'bootm' command in U-boot could work with the 'pxe boot' command.
- U-boot's pxe doesn't recognize initrd options in the append command - you
must specify initrd files using the initrd command.
- U-boot's pxe only recognizes a single file on the initrd command line. It
could be extended to support multiple.