A SCCM PXE-Handshake with architecture detection uses an additional step. Before sending the final bootstrap file, the SCCM server sends out a bootstrap file which has an included architecture detection. The file is called „wdsnbp.com“. This is necessary, because the architecture information provided by the smbios is not very reliable. The wdsnbp bootstrap file sends back a DHCP request reply which contains an additional DHCP option 250. This high option is normally not used by other tools and contains information concerning the architecture of the client system. U Boot Tftp Command![]() TFTP Download Failed with PXE Boot - posted in Boot from LAN: Forgive me if this isn't the right the forum to post this question as this is my first post here. TftpbootRight after the first contact of the client, die SCCM server checks for the necessary bootfiles. Axon pediatric software. If the bootfiles are not present in the boot-directory (normally Remoteinstall SMSboot), the server will not send out a DHCP offer. Since the bootfiles are extracted of the WinPE wim files during the startup of the WDS service, you should make sure, that only WinPE WIM files are stored within the SMSPXEIMAGES$ share and not full-os WIM files. Secondarily the SCCM server checks whether the client exists within the SCCM database. If the client is unknown, the SCCM server will not send out a DHCP offer. Note, that there has been added an unknown computer support in SCCM 2007 R2: About Unknown Computer Support for Operating System Deployment The check of the client can be surveilled within the smspxe.log.
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