X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=README.developers;h=02dfa6cc322019f06dbdd786f00fef5328ba5acb;hb=bdd446d592ee689fcdbbc458d7f88b4135ca557d;hp=6ba07339d13fbcf99fb443a1c112b934384bafd2;hpb=6d37b5f61c6cd4115197dc25e6d7ab571fcb3a54;p=virt-p2v.git diff --git a/README.developers b/README.developers index 6ba0733..02dfa6c 100644 --- a/README.developers +++ b/README.developers @@ -1,5 +1,3 @@ -$Id$ - Background reading ---------------------------------------------------------------------- @@ -10,28 +8,16 @@ About Live CDs / livecd-creator tool: The files in this directory ---------------------------------------------------------------------- -livecd.ks.in +p2v.ks.in Kickstart file which describes how to build the live CD. This is essentially the configuration file for livecd-creator. Most importantly it lists the RPMs which are needed on the live CD. -livecd-post.sh.in - - This is the %post-configuration section of the Kickstart script. It - is a shell script which runs after the RPMs have been installed but - before the live CD is turned into an ISO. The shell script creates - any extra files we need on the live CD. - -p2v.init - - This is installed on the live CD as /etc/init.d/p2v, and it causes the - live CD to boot into the P2V configuration tool (see next). +virt-p2v -virt-p2v.sh - - This is the virt-p2v.sh P2V configuration tool itself. It is - installed on the live CD as /usr/bin/virt-p2v.sh and runs after the + This is the virt-p2v P2V configuration tool itself. It is + installed on the live CD as /usr/bin/virt-p2v and runs after the live CD has booted. All the P2V stuff happens from this script. It uses the 'dialog' program to ask questions. @@ -39,6 +25,16 @@ inittab Replacement /etc/inittab. +iso-attach + + Attach newer virt-p2v scripts to pre-built ISOs (used by 'make update'). + +extras/ + + Anything under here is copied onto the ISO squashfs. In particular + this contains paravirt drivers for Red Hat Enterprise Linux, + CentOS and friends. + General implementation plan ---------------------------------------------------------------------- @@ -63,25 +59,9 @@ for devices in /sys/block. For (b) we can simply use 'dd' and 'ssh'. The general plan is to do this: - dd if=/dev/disk | gzip | ssh xenhost 'cat > /var/lib/xen/images/disk.img' - -If the user doesn't have sshd installed on the Xen host, then they can -also opt for a pure TCP transport: - - dd if=/dev/disk | gzip | nc xenhost port - - and on the remote host they do: - nc -l -p port > /var/lib/xen/images/disk.img + dd if=/dev/disk | ssh -C xenhost 'cat > /var/lib/xen/images/disk.img' For (c) we can use device-mapper snapshots to mount a ramdisk above the disks themselves. This allows us to make non-destructive changes to files, and still see the "modified" block device (d). A hairy -shell script looks for candidate files to modify. - -Non-generic virt-p2v ----------------------------------------------------------------------- - -The above describes the generic virt-p2v, which asks users questions -after boot. It is also possible to build your own live CD, based on -virt-p2v, which has various settings compiled in so it runs -automatically. +script looks for candidate files to modify.