Hi!
Just went through setting up UEFI boot over PXE and TFTP. Of great help in figuring out what was going on was to add logging to the TFTP server: Kill the tftp server started at boot and manually start one with # /usr/sbin/in.tftpd –vvv --listen --user tftp --address 0.0.0.0:69 --secure /srv/fai or similar (check the startup script of in.tftpd, add –v’s generously). Then you will see in the syslog, which files are being requested and whether they are actually being transmitted. A successful UEFI boot with grub generates about 15 TFTP requests, starting with: Jun 30 18:22:40 server in.tftpd[11435]: RRQ from 172.24.0.68 filename fai/efi/x86_64-efi/core.efi Jun 30 18:22:40 server in.tftpd[11436]: RRQ from 172.24.0.68 filename /fai/efi/x86_64-efi/normal.mod Jun 30 18:22:40 server in.tftpd[11437]: RRQ from 172.24.0.68 filename /fai/efi/x86_64-efi/extcmd.mod […] A missing or misplaced file will show up as Jun 30 18:22:40 server in.tftpd[11449]: RRQ from 172.24.0.68 filename /fai/efi/grub.cfg Jun 30 18:22:40 server in.tftpd[11449]: sending NAK (1, File not found) to 172.24.0.68 Hoping this helps, Toomas From: linux-fai <linux-fai-boun...@uni-koeln.de> On Behalf Of Rémy Dernat Sent: Friday, July 6, 2018 3:28 PM To: linux-fai@uni-koeln.de Subject: UEFI + Legacy BIOS TFTP/PXELINUX Hi, I am trying to set up an UEFI boot pxe mainly because our hardware servers do not support full legacy BIOS anymore (particularly hard disk plugin on those servers). Our legacy pxelinux works just fine from a while now (and thanks for it). I followed this link : https://lists.uni-koeln.de/pipermail/linux-fai/2014-February/010294.html ... with no luck. I created an "UEFI" specific class to avoid the erase of DEFAULT, and put everything in that new class, because we will need to keep the pxelinux config. My tftp fai folder is organised like this: ``` root@faiserv:/srv# tree -L 2 . ├── fai │ ├── config │ └── nfsroot ├── nfs4 └── tftp └── fai root@faiserv:/srv/tftp/fai# tree -L 2 . ├── c2960s-universalk9-tar.150-2a.SE9.tar ├── cisco-ios-150-2a.tar -> c2960s-universalk9-tar.150-2a.SE9.tar ├── efi │ ├── fonts │ ├── grub.cfg │ ├── grub.cfg.nok │ ├── i386-pc │ ├── locale │ ├── pxelinux.cfg -> ../pxelinux.cfg │ ├── unicode.pf2 │ └── x86_64-efi ├── gpxelinux.0 ├── initrd.img-3.16.0-4-amd64 ├── initrd.img-3.16.0-6-amd64 ├── ldlinux.c32 ├── lpxelinux.0 ├── pxelinux.0 ├── pxelinux.0.back ├── pxelinux.cfg │ ├── 0A01FD03 │ ├── 0A01FFF2 │ ├── A226B5A1.disable │ ├── A226B5A2.disable │ ├── A226B5A3.disable │ ├── A226B5A4.disable │ ├── A226B5A5.disable │ ├── A226B5A6.disable │ ├── A226B5A7.disable │ ├── A226B5A9 │ ├── A226B5AA.disable │ ├── A226B5AB.disable │ ├── A226B5B0.disable │ ├── A226B5B4.disable │ ├── A226B5B8 │ └── default ├── syslinux.efi ├── vmlinuz-3.16.0-4-amd64 └── vmlinuz-3.16.0-6-amd64 ``` I do not know if the UEFI is also searching for a filename matching its IP address with the hexa value, so I created a symbolic link to the pxelinux.cfg parent directory... I have no problem with DHCP, and my client is loading the grub.cfg menu. However, it fails while searching for the nfsroot. The error I get (with debug=all) is (replacing sensitive informations): ``` kern/disk.c:196 : Opening `tftp,IP.IP.IP.IP'... disk/efi/efidisk.c:461 : opening tftp kern/disk.c: 281: Opening `tftp,IP.IP.IP.IP' failed. kern/disk.c: 295: Closing `tftp'. ``` Here is my grub.cfg config : ``` root@faiserv:/srv/tftp/fai/efi# cat grub.cfg set menu_color_normal=white/black set menu_color_highlight=black/light-gray set timeout=5 # for debug: #set pager=1 set debug=all insmod efi_gop insmod efi_uga if loadfont ${prefix}/unicode.pf2 then insmod gfxterm set gfxmode=auto set gfxpayload=keep terminal_output gfxterm fi menuentry "Install from FAI" { linux vmlinuz-3.16.0-6-amd64 rw ip=dhcp root=/dev/nfs nfsroot=IP.IP.IP.IP:/srv/fai/nfsroot FAI_FLAGS=verbose,sshd,createvt,reboot FAI_ACTION=install server=faiserv.acme.ltd FAI_CONFIG_SRC=nfs://faiserv.acme.ltd/srv/fai/config initrd initrd.img-3.16.0-6-amd64 } ``` Any help would be greatly appreciated. Thanks, Rémy
