linux 2.6.29 kerrighed

INSTRUCTIONS FOR SETTING UP KERRIGHED NODES:

1. create tap interfaces: openvpn –mktun –dev tap0 and openvpn –mktun –dev tap1
2. brctl addbr [name]
3. brctl addif tap0
4. brctl addif tap1
5. start two qemu emulators running patched linux and rootfs, same session_id, different node_id, different tap interfaces, different macaddr qemu-system-x86_64 -kernel Downloads/good/bzImage -initrd Downloads/rootfs.ext2 -append "root=/dev/ram session_id=1 node_id=1 ramdisk_size=128000" -net nic,macaddr=00:11:22:33:44:55 -net tap,ifname=tap0,script=no,downscript=no
6. inside one node, ssh into kerrighed-container: ssh user@localhost -p 2222
7. inside the kerrighed-container: krgadm nodes add -a
8. check proc/cpuinfo: cat /proc/cpuinfo

ANDROID_X86 donut (1.6)

1. get repo tool
2. repo init -u git://android-x86.git.sf.net/gitroot/android-x86/manifest.git -b donut-x86 (other links don't work)
3. repo sync
4. To patch: patch p1 -R < android.patch

NETWORK IN QEMU:

1. ifconfig eth0 up
2. udhcpc
3. check ifconfig or try ping-ing

INSTRUCTIONS TO QUICKLY BOOT IMAGE:

1. install qemu
2. edit path in run.sh if bash shell is not located at /bin/bash
3. ./run.sh

INSTRUCTIONS FOR ROOTFS:

1. Download Buildroot src
2. make help
3. choose an option from two and make
4. rootfs img will be in output/images

Hints:

• run menuconfig to add utilities and libraries (openssh, openssl, etc)
• if needed, use glibc toolchain (toolchain options)
• populate dev (tty, tty1, null, urandom)
• edit etc/network/interfaces to have internet access
• mount rootfs image and install kerrighed there (prefix=/path/to/rootfs/mount)
• copy /lib/lsb/init-functions from ubuntu vm or somewhere... kerrighed-host uses it

INSTRUCTIONS FOR QEMU:

• qemu-system-x86_64 -kernel [path]/[to]/bzImage -initrd [path]/[to]/rootfs.img -append "root=/dev/ram" OR
• qemu-system-x86_64 -kernel [path]/[to]/bzImage -initrd [path]/[to]/rootfs.img -nographic -append "root=/dev/ram console=ttyS0,115200" -vga vmware

Links:

1. http://www.tldp.org/HOWTO/Bootdisk-HOWTO/buildroot.html

INSTRUCTION FOR BUILDING KERRIGHED LIBS AND APPS:

1. inside kerrighed dir: ./configure -disable-kernel
2. make distclean
3. ./autogen.sh
4. ./configure --disable-kernel --prefix=/path/to/
5. make install

INSTRUCTIONS FOR BUILDING KERNEL:

1. cp -R linux-2.6.29 kerrighed/patches/.
2. inside kerrighed dir: ./configure
3. cd _kernel
4. make x86_64_defconfig
5. make
6. bzImage file will be in kerrighed/kernel/arch/x86/boot/

NOTES:

• use gcc-4.4
• kerrighed will download linux-2.6.29.tar.bz -- this is OK
• however, make sure that during the configuration process, it does NOT unzip the linux source it just downloaded and instead uses the one already in the patches directory
• the linux-2.6.29 in the kerrighed/patches directory is a symlink to the linux-2.6.29 in the root directory of the repo

linux 2.6.29 + kerrighed porting

Failed patches

• include
  • include_linux_ipc_namespace_.h
    • although 3 statments at the top of the patch are missing from 2.6.29, it seems like the hunk is to remove a blank line... seems OK!
  • include_linux_init_task.h
  • include_linux_magic.h
    • line missing "#define STACK_END_MAGIC 0x57AC6E9D" but may not be important, seems OK
  • include_linux_sched.h
    • line missing "unsigned in_execve:1" but irrelevant, seems OK
  • include_linux_tracehook.h
• net
  • net_tipc_bcast.c
  • net_tipc_bcast.h
    • for bcast.c/h seems like the patch tried to remove files but minor differences got in the way... might be OK
  • net_tipc_dbg.c
    • patch tries to remove files but minor differences (line 261, printf) it couldn't... seems OK
  • net_tipc_node.c
    • same story as above... seems OK
• mm
  • mm_vmscan.c
    • minor differences... seems OK
• kernel
  • kernel_auditsc.c
    • line missing "include <linux/fs_struct.h>", irrelevant to patch... seems OK
  • kernel_cgroup.c
    • patch adds code at the end of file, however v30 is very different thant v29, so this MAY NOT WORK
  • kernel_exit.c
    • minor differences, seems OK
  • kernel_fork.c
    • some "includes" missing
  • kernel_pid.c
  • kernel_ptrace.c
    • last function to be patched (exit_ptrace) doesn't exist... REVISIT!
  • kernel_sched.c
    • function to be patched (__schedule) doesn't exist but the code is in schedule() instead, applied patches there
• arch
  • arch_x86_configs_i386_defconfig
  • arch_x86_configs_x86_64_defconfig
  • arch_x86_include_asm_pgtable_types.h
    • code for patch was in pgtable.h instead, applied patches there, seems OK
  • arch_x86_include_asm_thread_info.h
    • define was missing, seems OK
  • arch_x86_include_asm_uaccess.h
    • minor differences (errret v30 vs. -EFAULT v29 and others), seems OK
  • arch_x86_kernel_cpu_proc.c
    • different function call for cpu_mask, seems OK
  • arch_x86_kernel_process_32.c
    • line after patch (312-ish) is different, REVISIT THIS
  • arch_x86_kernel_process.c
    • code for patch was moved from process_32/64, so I applied patch directly there, seems OK
• fs
  • fs_binfmt_elf_fdpic.c
    • task_pid_vnr(p->real_parent) (30) vs. task_pid_vnr(p->parent) (29)...
  • fs_eventpoll.c
    • OK
  • fs_exec.c
    • import missing (hunk1), 2 lines after comment missing in 29 (hunk2), seems OK
  • fs_inode.c
    • lines following patch were different, seems OK
  • fs_nfs_inode.c
    • a conditional statement is missing from 29 but is irrelevant, seems OK
  • fs_open.c
    • import missing, seems OK
  • fs_proc_base.c
    • import missing, seems OK
  • fs_proc_uptime.c
    • uptime_proc_show (30) is the same-ish as uptime_proc_read (29) but function name and params are diff. Patch only changes the function type (from static to not), seems OK
  • fs_stat.c
    • function is replaced in 2.6.30, but contents are similar, modified 29 to be similar to 30 and applied patch, seems OK
• ipc
  • ipc_Makefile
  • ipc_namespace.c
  • ipc_util.h
• Makefile
  • added "-krg" to EXTRAVERSION variable of Makefile (line 4 or something)