✎ soc:2009:pravin:journal:week6

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====== week - 6 ======

Targets decided for this week are
  * Add fedora live CD to BKO
  * Improve the user facing page of BKO
  * Improve the boot time menu

===== 29 - 30 July =====
  - Started to work on Fedora live CD
  - Collected all basic stuff needed 
     - Live CD
     - Initrd and kernel
     - Kernel modules for networking
  - It has taken unreasonably long time as fedora_11 lives cd was exceptionally slow on qemu for me, I couldn't get needed kernel modules from inside CD.
     - I decided to migrate to kvm for better performance. but I was getting error ''could not open /dev/kvm: No such file or directory''
     - After breaking my head around for some time, it seems my brand new laptop does not have support for virtualization :-(
     - For time being, I am using virtual-box, it works fast enough, but only problem with virtualBox is, virtual machine does not pick up the IP address using DHCP as it happens with qemu '' -net user'' option.  This means that my all gpxe scripts which do use dhcp by default will not work any more :-(
     - I have not yet fixed this problem of dhcp support in virtualbox, I have postponed the solution finding for this problem for time being.
  

===== 1 - 2 July =====
  - Wrote script which can generate new modified initramfs automatically with everything added from original initramfs.
  - Now, actual work of understanding /init script and understanding how they use iso image as root starts.
  - Done with modifications in /sbin/real-init which will (hopefully) mount the httpfs partition over root.
  - Initial runs were not very promising, when tried to boot this modified fedora live cd over BKO using qemu, it dropped me in rescue shell :!:
     - There were few error messages in boot sequence
        - ''mount: only root can do that''
        - ''getKernelCmdLine: failed to open /proc/cmdline: No such file or directory''
        - ''creating initial /dev : only root can do that''



===== 3 July =====
  - Pin-pointed the cause 
     - It started giving errors in mounting kernel filesystems like ''/proc'' and dropped me to emergency shell
     - when I tried command ''mount -t proc proc /proc'' It gave error saying ''mount: only root can do that''
     - But as this command is executed from within initrd, it is executed as root

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