On Sun, Feb 27, 2011 at 11:03 PM, SADA SIVA REDDY S <sadasiva.reddy@xxxxxxxxx> wrote: > Hi All, > ÂÂ I am trying to setup linux development environment. I did the following > steps to get my first work environment. > > Removed initrd - which should be specific to distributions. > You seems to have a wrong idea of what initrd is. initrd is a initial ram disk file system that is mounted before your root file system and contains drivers compile as a module that are needed to mount your real root filesystem. This is needed if your kernel doesn't have built-in support for the partition being mounted in / A good explanation is found here: http://www.ibm.com/developerworks/linux/library/l-initrd.html > When I boot this image , I get an error saying can not open root device.( > https://picasaweb.google.com/sadasiva.reddy/KernelError?authkey=Gv1sRgCOLo_oH4zvPpVA&feat=directlink) > > Could any one please guide me how to setup this root file system or any > thing else that I need to do to be able to boot this kernel that I build. > The problem seems to be that your kernel doesn't have support for your filesystem (or it has support has a kernel module but because you don't have an initial ramdisk that module can't be loaded) You have to either compile your kernel with buil-in support for your filesystem or create an initrd with: cd /boot/ && update-initramfs -c -k newkernel An excelent book on Linux kernel configuration and building is Greg's KH "Linux kernel in a nutshell" http://www.kroah.com/lkn/ Best regards, -- ----------------------------------------- Javier MartÃnez Canillas (+34) 682 39 81 69 PhD Student in High Performance Computing Computer Architecture and Operating System Department (CAOS) Universitat AutÃnoma de Barcelona Barcelona, Spain _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
