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UML(UserMode Linux) 사용방법

게시판 Tech/Tip UML(UserMode Linux) 사용방법

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    User-mode Linux (UML) allows multiple virtual Linux systems (known as guests) to run as an application within a normal Linux system (known as the host). As each guest is just a normal application running as a process in user space, this approach provides the user with a way of running multiple virtual Linux machines on a single piece of hardware, offering excellent security and safety without affecting the host environment's configuration or stability.

    0. Related Website

    1. UML Utilities 설치하기
    ( uml_net, uml_mconsole, uml_switch, tunctl, )

    fc6#> echo "p7KeCa" > ~/.uml
    fc6#> dmesg | grep mconsole
    mconsole (version 2) initialized on /home/rpjday/.uml/p7KeCa/mconsole
                                                         ^^^^^^ there it is again
    fc6#> yum install fuse-devel
              (  : File System in Userspace (FUSE) libraries)
    fc6#> w g e t
    fc6#> bunzip2 uml_utilities_20070815.tar.bz2
    fc6#> tar xf uml_utilities_20070815.tar
    fc6#> cd tools-20070815/
    fc6#> make all
    fc6#> make BIN_DIR=/usr/local/bin install
    fc6#> ls /usr/local/bin/uml*
    /usr/local/bin/uml_mconsole  /usr/local/bin/uml_net    /usr/local/bin/uml_mkcow    
    /usr/local/bin/uml_switch       /usr/local/bin/uml_moo  /usr/local/bin/uml_watchdog
    fc6#> iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE

    2. UMLKernel 설치하기
    fc6#> w g e t
    fc6#> unzip2 linux-2.6.24.tar.bz2
    fc6#> tar xf linux-2.6.24.tar
    fc6#> cd linux-2.6.24
    fc6#> make defconfig ARCH=um
    fc6#> make menuconfig ARCH=um
    fc6#> make mrproper
    fc6#> make mrproper ARCH=um
    fc6#> make ARCH=um
    fc6#> ls -l linux
    fc6#> file linux
    linux-2.6.24: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV),
    for GNU/Linux 2.6.9, dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped

    3. Getting Started
       * HOST-side:
       * UML-side:
    fc6#> w g e t
    fc6#> w g e t
    fc6#> bunzip2 linux-2.6.24-rc7.bz2 FedoraCore5-x86-root_fs.bz2
    fc6#> chmod 755 ./linux-2.6.24-rc7
    fc6#> uml_mconsole p7KeCa config eth0=tuntap,,,
    fc6#> ./linux-2.6.24-rc7 ubda=FedoraCore5-x86-root_fs mem=128M eth0=tuntap,,,
                Fedora Core release 5 (Bordeaux)
                Kernel 2.6.19-rc7 on an i686
                localhost login: root  (no password)
              [UML]# halt
              [UML]# ifconfig eth0 up
              [UML]# ifconfig eth0
              [UML]# route add default gw
              [UML]# route
              [UML]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
              [UML]# service network {start,stop,restart,status}
              [UML]# chkconfig --add network
              [UML]# chkconfig --list
              [UML]# df
                         Filesystem           1K-blocks      Used Available Use% Mounted on
                         /dev/ubda              1548144    409196   1060308  28% /
                         tmpfs                   786432         0    786432   0% /tmp
              [UML]# mount
                         /dev/ubda on / type auto (rw)
                         none on /proc type proc (rw)
                         none on /dev/pts type devpts (rw,gid=5,mode=620)
                         tmpfs on /tmp type tmpfs (rw,size=768M)
    fc6#> ifconfig tap0


    4. gdb(or ddd)으로 UML Kernel  Debugging하기

    fc6#> ddd ./linux-2.6.24-rc7 ubda=FedoraCore5-x86-root_fs mem=128M eth0=tuntap,,,

    * 오픈소스는 Open Innovationa & 윈윈전략을 도모할 지언정 절대 공짜(무료)임을 뜻하지 않는다.치

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    • #12609
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      ㅤㄲㅑㄲ 이거 쓰면 VM놀이가 더 재밌어지려나 -ㅅ-

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