Re: Configure grub for pxe boot and nfs-mounted root
Since I got grub's pxe set to go, I have started to try the ideas solutions. * Answer to my first question from previous post (I don't see a way where tftp-server would be able to serve-up the grub menu if it were in say /data/tftp path?): This seems not possible. TFTPD cannot chroot (-s) unless the folder structure is inside the jail. Setting to different NFS path gives folder not found error from tftpd. (posted for informational purposes) * grub-mknetdir creates 700 permission folder structure. It needs to be changed to 755 in order for tftpd to serve core.0 (744 is insufficient). * grub-mknetdir folder is /data/amd64//boot/grub. I created a grub.cfg under there AND under i386-pc. The client shows welcome to grub message, then falls to file not found. Was I supposed to pass the grub.cfg location when I ran grub-mknetdir? * Which insmod need for NFS exported folders? There's no nfs*.mod? * Since I have 3 separate NFS exports which grub will choose from on the menu, is it possible to create a device.map file with something like: (hd0,0) 192.168.2.1:/data/amd64 (hd0,1) 192.168.2.1:/data/i386 (hd0,2) 192.168.2.1:/data/isos That way, I could do and change set root='hd0,1 or 2 or 3' for each menu entry? Or is the device.map deprecated? Thanks for the input ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: Configure grub for pxe boot and nfs-mounted root
On 26.11.2013 11:01, Beeblebrox wrote: Since I got grub's pxe set to go, I have started to try the ideas solutions. * Answer to my first question from previous post (I don't see a way where tftp-server would be able to serve-up the grub menu if it were in say /data/tftp path?): This seems not possible. TFTPD cannot chroot (-s) unless the folder structure is inside the jail. Setting to different NFS path gives folder not found error from tftpd. (posted for informational purposes) This doesn't seem to be a GRUB problem at all. I use tftpd which serves from /var/tftpd * grub-mknetdir creates 700 permission folder structure. It needs to be changed to 755 in order for tftpd to serve core.0 (744 is insufficient). I'll think how to handle it sanely. Only mknetdir needs this change * grub-mknetdir folder is /data/amd64//boot/grub. I created a grub.cfg under there AND under i386-pc. The client shows welcome to grub message, then falls to file not found. Was I supposed to pass the grub.cfg location when I ran grub-mknetdir? boot/grub ($prefix) is where grub.cfg goes. Judging from your first question, is it possible you serve from a different folder than you think you do? * Which insmod need for NFS exported folders? There's no nfs*.mod? You're right there isn't any. Right now we have only tftp and http. Patches are welcome * Since I have 3 separate NFS exports which grub will choose from on the menu, is it possible to create a device.map file with something like: (hd0,0) 192.168.2.1:/data/amd64 (hd0,1) 192.168.2.1:/data/i386 (hd0,2) 192.168.2.1:/data/isos That way, I could do and change set root='hd0,1 or 2 or 3' for each menu entry? Or is the device.map deprecated? No device.map is not for this at all. For once it's not used by runtime at all. Thanks for the input ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel signature.asc Description: OpenPGP digital signature ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: Configure grub for pxe boot and nfs-mounted root
This doesn't seem to be a GRUB problem at all. I use tftpd which serves from /var/tftpd You are right, it is not a GRUB problem; it's a folder structure error in the way I approached the problem. boot/grub ($prefix) is where grub.cfg goes. Judging from your first question, is it possible you serve from a different folder than you think you do? No, the dhcp-tftp chain is correct. Because /data/amd64 is a jail (like a chroot) and the chroot is where dhcp and tftpd are running, I thought maybe the correct sytax should be grub-mknetdir --net-directory=/ --subdir=boot/grub, then copy the files to boot/grub under the chroot folder. No difference, however and client drops to grub rescue. /var/log/xferlog shows: in.tftpd[41762]: RRQ from 192.168.2.34 filename i386-pc/core.0 in.tftpd[41762]: tftp: client does not accept options in.tftpd[41763]: RRQ from 192.168.2.34 filename i386-pc/core.0 in.tftpd[41764]: RRQ from 192.168.2.34 filename /boot/grub/i386-pc/normal.mod in.tftpd[41764]: sending NAK (1, File not found) to 192.168.2.34 grub rescue set cmdpath=(tftp,192.168.2.1)i386-pc prefix=(tftp,192.168.2.1)/boot/grub root=tftp,192.168.2.1 net_pxe_boot_file=i386-pc/core.0 I changed the dhcp-tftpd configuration from prefix /boot/grub/i386-pc, to test whether the problem lay in tftpd's inability to rad giles from folders one level up (cd ..). Same result. ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: Configure grub for pxe boot and nfs-mounted root
On 26.11.2013 12:26, Beeblebrox wrote: This doesn't seem to be a GRUB problem at all. I use tftpd which serves from /var/tftpd You are right, it is not a GRUB problem; it's a folder structure error in the way I approached the problem. boot/grub ($prefix) is where grub.cfg goes. Judging from your first question, is it possible you serve from a different folder than you think you do? No, the dhcp-tftp chain is correct. Because /data/amd64 is a jail (like a chroot) and the chroot is where dhcp and tftpd are running, I thought maybe the correct sytax should be grub-mknetdir --net-directory=/ --subdir=boot/grub, then copy the files to boot/grub under the chroot folder. No difference, however and client drops to grub rescue. /var/log/xferlog shows: in.tftpd[41762]: RRQ from 192.168.2.34 filename i386-pc/core.0 in.tftpd[41762]: tftp: client does not accept options in.tftpd[41763]: RRQ from 192.168.2.34 filename i386-pc/core.0 in.tftpd[41764]: RRQ from 192.168.2.34 filename /boot/grub/i386-pc/normal.mod in.tftpd[41764]: sending NAK (1, File not found) to 192.168.2.34 You misconfigured your server --net-directory is where root of tftp is. --subdir is subdirectory of it. Yet your server has root in /boot/grub and not subdirectory grub rescue set cmdpath=(tftp,192.168.2.1)i386-pc prefix=(tftp,192.168.2.1)/boot/grub root=tftp,192.168.2.1 net_pxe_boot_file=i386-pc/core.0 I changed the dhcp-tftpd configuration from prefix /boot/grub/i386-pc, to test whether the problem lay in tftpd's inability to rad giles from folders one level up (cd ..). Same result. ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel signature.asc Description: OpenPGP digital signature ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: Configure grub for pxe boot and nfs-mounted root
I tried as suggested, # grub-mknetdir --net-directory=/data/tftp --subdir=boot And no files were plced in /data/tftp/boot I did not see the relevance, but I also tried, # grub-mknetdir --net-directory=/data/tftp --subdir=boot /dev/ada0 grub-mknetdir: Too many arguments Try 'grub-mknetdir --help' or 'grub-mknetdir --usage' for more information. What am I doing wrong? Do I need to start NFS services and set net-directory=192.168.2.1:/data/tftp? I do not understand the meaning of install_device from man page: SYNOPSIS grub-mknetdir [OPTION] install_device ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: Configure grub for pxe boot and nfs-mounted root
On Nov 25, 2013 4:29 PM, Beeblebrox zap...@berentweb.com wrote: I tried as suggested, # grub-mknetdir --net-directory=/data/tftp --subdir=boot And no files were plced in /data/tftp/boot paste full output with -v I did not see the relevance, but I also tried, # grub-mknetdir --net-directory=/data/tftp --subdir=boot /dev/ada0 grub-mknetdir: Too many arguments Try 'grub-mknetdir --help' or 'grub-mknetdir --usage' for more information. What am I doing wrong? Do I need to start NFS services and set net-directory=192.168.2.1:/data/tftp? I do not understand the meaning of install_device from man page: SYNOPSIS grub-mknetdir [OPTION] install_device it's a leftover ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: Configure grub for pxe boot and nfs-mounted root
# grub-mknetdir -v = no output dmesg shows nothing ls -la /usr/local/bin/grub-mknetdir -rwxr-xr-x 1 root wheel 444009 Nov 24 17:53 grub-mknetdir* ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: Configure grub for pxe boot and nfs-mounted root
On 25.11.2013 17:25, Beeblebrox wrote: # grub-mknetdir -v = no output dmesg shows nothing Found the problem. Either use -d or upgrade. ls -la /usr/local/bin/grub-mknetdir -rwxr-xr-x 1 root wheel 444009 Nov 24 17:53 grub-mknetdir* ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel signature.asc Description: OpenPGP digital signature ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: Configure grub for pxe boot and nfs-mounted root
Found the problem. Either use -d or upgrade. The -d flag did not work (gave error), so I I upgraded. Works now! # grub-mknetdir --net-directory=/data/tftp --subdir=boot Netboot directory for i386-pc created. Configure your DHCP server to point to /data/tftp/boot/i386-pc/core.0 The DHCP message (where to point) is also very helpful and important. A big hank-you to all of you. ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: Configure grub for pxe boot and nfs-mounted root
On 26.11.2013 08:22, Beeblebrox wrote: Found the problem. Either use -d or upgrade. The -d flag did not work (gave error), so I I upgraded. Works now! -d requires an argument (consult --help) # grub-mknetdir --net-directory=/data/tftp --subdir=boot Netboot directory for i386-pc created. Configure your DHCP server to point to /data/tftp/boot/i386-pc/core.0 The DHCP message (where to point) is also very helpful and important. A big hank-you to all of you. ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel signature.asc Description: OpenPGP digital signature ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: Configure grub for pxe boot and nfs-mounted root
On 24.11.2013 09:14, Beeblebrox wrote: d version: grub-mkimage --format=i386-pc-pxe --output=grub.pxe --prefix='(192.168.2.1)/data/amd64/boot/grub' pxe pxecmd No, use grub-mknetdir. signature.asc Description: OpenPGP digital signature ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
