RHEL6 Diskless Remote boot fail
Hi guys,
I've been trying to set up a server for disk-less booting of remote machines on a network. The server host OS is RHEL6 and I have configured dhcp, tftp and nfs services which are proven to be working since I am able to install RHEL6 through pxe boot. Now I want it to serve for disk-less booting. I followed the red hat guide here. Below are steps which I have done and then the problems I got- 1. Configure dhcp, tftp, nfs and set up for pxe booting. Tested to be working by installing RHEL through network. 2. Install dracut-network package, copy the kernel from /boot of the host server to temp and generate an initramfs with network support. #dracut initramfs_diskless.img vmlinuz-2.6.32-279.el6.x86_64 This gave the error- find: `/lib/modules/vmlinuz-2.6.32-279.el6.x86_64/': No such file or directory find: `/lib/modules/vmlinuz-2.6.32-279.el6.x86_64/': No such file or directory find: `/lib/modules/vmlinuz-2.6.32-279.el6.x86_64/': No such file or directory find: `/lib/modules/vmlinuz-2.6.32-279.el6.x86_64/': No such file or directory find: `/lib/modules/vmlinuz-2.6.32-279.el6.x86_64/': No such file or directory find: `/lib/modules/vmlinuz-2.6.32-279.el6.x86_64/': No such file or directory so I removed the vmliuz from the filename and dracut showed no errors. 3. Copy the entire root filesystem of a RHEL6 desktop installation to a location on the server, except the contents of /proc and /sys and export the location over nfs. 4. Add the following lines to default file inside pxelinux.cfg label diskless menu label Boot into diskless RHEL6 kernel vmlinuz-2.6.32-279.el6.x86_64 append initrd=initramfs_diskless.img root=nfs4:<NFS_IP>:<EXPORTED_ROOTFS_LOCATION> rw rdshell rdinitdebug 5. Try to pxe boot a machine on the network. Output at client side- kernel and initramfs loads up, ADDRCONF(NETDEV_CHANGE):eth0: link becomes ready dracut:Mounted root filesystem <NFS_IP> <NFS_SHARE> SELinux: Disabled at runtime dracut: switching root + [ -f /etc/capsdrop ] + exec switch_root /sysroot /sbin/init <Here it just stops for about 2 mins > INFO: task init:1 blocked for more than 120 secs "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Then it shows a bunch of memory addresses with system calls and hangs. Please help !!!!!!!!!! |
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