Date: Wed, 20 Apr 2005 10:24:26 +0200 From: "Emmanuel Chriqui" <emmanuel.chriqui@laposte.net> To: "'David G. Lawrence'" <dg@dglawrence.com> Cc: freebsd-stable@freebsd.org Subject: RE: PXEBOOT/TFTPBOOT + big MD_ROOT problem Message-ID: <425309CA008BDE83@lpdnpm09.laposte.net> (added by postmaster@laposte.net) In-Reply-To: <20050419231817.GM31779@opteron.dglawrence.com>
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> Objet : Re: PXEBOOT/TFTPBOOT + big MD_ROOT problem > > > Hi, > > > > I'm trying to make very big MD_ROOT (300MB) sent using PXEBOOT+TFTPBOOT. > No > > NFS. It's a sort of diskless machine with all the system on ram. There > is a > > problem when the preloaded image is >~32MB. Kernel loads but it does not > > seem to find the files. It seems as if only part of the image is really > > there. With a "small" image (<~32MB), no probleme. I use the same image, > off > > course, same init etc... just more data for my application in the big > image > > case. > ... > > Am I missing something obvious? > > I assume you saw this in the tftpd manual page? > > BUGS > Files larger than 33488896 octets (65535 blocks) cannot be > transferred > without client and server supporting blocksize negotiation (RFC1783). > > Many tftp clients will not transfer files over 16744448 octets (32767 > blocks). > > > -DG Yes. Saw it. My tftp client and pxe+tftp under linux works ok. The tftp client under FreeBSD seems to work fine (1,5GB tranfered, md5sum checked, no pb). BUT, maybe the tftp client in the FreeBSD pxeboot has a problem. I am actually trying to make the mfsroot go through NFS. If that works, it will indicate the FreeBSD pxeboot has indeed this problem with TFTP. Emmanuel.
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