[ipxe-devel] Backslash in chain scripts converted to %5c - escaping issue
alex at davz.net
Wed May 30 16:09:36 UTC 2012
Thanks for your reply. Sadly, the DNS server is Windows and we can't
change it for this particular case (its a menu option for a Windows
installer - even though its pxelinux.0)
The escaping is happening within iPXE, I can see it in the error it
prints on the console as I boot.
On Wed, May 30, 2012 at 12:13 PM, Oliver Rath <rath at mglug.de> wrote:
> Hi Alex
> Am 30.05.2012 12:59, schrieb Oliver Rath:
>> Am 30.05.2012 12:42, schrieb Alex Davies:
>>> Hi All,
>>> If I enter iPXE shell and enter "chain \boot\x86\pxelinux.0",
>>> everything works - it pulls this file via TFTP from next-server.
>>> If I put the same string in a iPXE script and chain that via HTTP,
>>> there is an escaping issue (the slashes are converted to %5C). I have
>>> tried double slashing and adding quotes to no avail (these escape
>>> characters are simply converted too).
>>> Is there another way?
>> You can take i.e. the builtin tftp-server of dnsmasq (if you are using
>> i.e. linux as server). It converts all "\" to "/" in path by default.
>> Addtionally, in dnsmasq 2.61 exists the new --tftp-lowercase option,
>> which converts als chars to lowercase.
> Maybe ive read it not careful enough: It seems you are having a
> windows-based web-server on the other side? So it is really easy: forget
> the "\", you can set the directory in your webserver configuration so
> you dont need it set in ipxe. So say "chain pxelinux.0" and give the
> webserver the information where to find the file. Additionally, the
> directory-structure in URL is alsways done by "/", but every webserver
> can interpret it in ther right way, if you persist on the path.
> The only way you need "\" in the path is a windows-based tftp-server. In
> http-context you never will need it.
> ipxe-devel mailing list
> ipxe-devel at lists.ipxe.org
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error please notify
the sender immediately by e-mail and delete this e-mail permanently.
More information about the ipxe-devel