Syslinux - Mar 2008 - Failed to boot USB drive via syslinux if kernel is not in /

Hi,
Sorry for asking this again if this have been asked. I searched this
mailing list but I can not find the confirmed answer.
We tried to use syslinux to boot USB flash drive. The problem is, if we
put the kernel and initrd in /casper directory, syslinux failed to boot,
it showed us:
------------------
Booting error message:
SYSLINUX 3.11 Debian-2007-03-12 EBIOS
boot: /casper/vmlinuz1
Could not find kernel image: /casper/.lin
------------------
I am 100% sure that /casper/vmlinuz1 exists.
The syslinux.cfg is:
------------------
label live
kernel /casper/vmlinuz1
append initrd=/casper/initrd1.img boot=casper  username=casper
hostname=debian vga=788 ip=frommedia
------------------
On the other hand, if we move /casper/vmlinuz1 to /vmlinuz, and change
the syslinux.cfg as:
------------------
label live
kernel vmlinuz1
append initrd=initrd1.img boot=casper  username=casper hostname=debian
vga=788 ip=frommedia
------------------
then the USB flash drive boots successfully. Is that true that we can
only put kernel in the root directory ?

Thanks in advance.
-- 
Steven Shiau <steven _at_ nchc org tw> <steven _at_ stevenshiau org>
National Center for High-performance Computing, Taiwan.
http://www.nchc.org.tw
Public Key Server PGP Key ID: 1024D/9762755A
Fingerprint: A2A1 08B7 C22C 3D06 34DB  F4BC 08B3 E3D7 9762 755A

Steven Shiau schreef:
> Hi,
> Sorry for asking this again if this have been asked. I searched this
> mailing list but I can not find the confirmed answer.
> We tried to use syslinux to boot USB flash drive. The problem is, if we
> put the kernel and initrd in /casper directory, syslinux failed to boot,
> it showed us:
>   
Your Syslinux version is ancient it seems (3.11, with 3.62 freshly 
released). Somewhere inbetween directory support was added.

Bernd

Op 04-03-2008 om 23:18 schreef Steven Shiau:
> ------------------
> Booting error message:
> SYSLINUX 3.11 Debian-2007-03-12 EBIOS
           ^^^^
    <snip/>
> On the other hand, if we move /casper/vmlinuz1 to /vmlinuz, and change
> the syslinux.cfg as:
> ------------------
> label live
> kernel vmlinuz1
> append initrd=initrd1.img boot=casper  username=casper hostname=debian
> vga=788 ip=frommedia
> ------------------
> then the USB flash drive boots successfully.
> Is that true that we can only put kernel in the root directory ?
Recent versions, current version is 3.62, are aware of subdirecties.


HtH
GSt

Great. My bad. Have to use syslinux 3.35 or later.
Thank you, Bernd and Geert.

-- 
Steven Shiau <steven _at_ nchc org tw> <steven _at_ stevenshiau org>
National Center for High-performance Computing, Taiwan. 
http://www.nchc.org.tw
Public Key Server PGP Key ID: 9762755A
Fingerprint -- A2A1 08B7 C22C 3D06 34DB  F4BC 08B3 E3D7 9762 755A