6 MB limit of initrd

[Gerhard Tonn]

Scott Moser schrieb:
> On Fri, 1 Feb 2008, Gerhard Tonn wrote:
>
>   
>> Hi,
>>
>> I am facing the problem that yaboot can't handle an initrd of more than 
>> 6 MB. I tried the yaboot from head from 
>> http://people.fedoraproject.org/~pnasrat/yaboot , since I read on 
>> -devel, that the 6 MB problem has been fixed in head. 
>> <http://people.fedoraproject.org/%7Epnasrat/yaboot>
>>
>> When running this yaboot, I get
>>
>> Claim failed for initrd memory   
>> ramdisk load failed !            
>> ENTER called ok                  
>>
>> Anybody any idea?
>>     
>
> Please try building with commit c8b04c614770870d75825c19bcd4729cc779b84a
> backed out (ie: git-checkout -f; git-show c8b04c61 | patch -p1 -R ; make
> clean ; make
>
> I have a colleague who was having a similar problem on a power5 lpar
> system with firmware at SF240_332 .  Doing the above fixed the problem.
> He's now able to netboot 6MB+ kernels.
>
>
>   
Thanks, that helps indeed.

We had to apply only the following patch on top since we are using an 
AIX bootserver, which interprets '/etc' as an absolute path. After 
applying the patch it works with an AIX as well as an Linux bootserver.

Regards,
Gerhard

--- second/yaboot.c.orig        2008-02-06 13:15:45.000000000 +0100
+++ second/yaboot.c     2008-02-06 14:44:35.000000000 +0100
@@ -465,7 +465,7 @@
      struct bootp_packet *packet;
      int rc = 0;
      struct boot_fspec_t fspec = *orig_fspec;
-     char *cfgpath = (_machine == _MACH_chrp || _machine == 
_MACH_bplan) ? "/etc/" : "";
+     char *cfgpath = (_machine == _MACH_chrp || _machine == 
_MACH_bplan) ? "./etc/" : "";
      int flen;
      int minlen;

@@ -477,7 +477,7 @@
       */

      /* 3 chars per byte in chaddr + 2 chars for htype + /etc/ +\0 */
-     fspec.file = malloc(packet->hlen * 3 + 2 + 6);
+     fspec.file = malloc(packet->hlen * 3 + 2 + strlen(cfgpath) + 1);
      if (!fspec.file)
          goto out;