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Quomodo incipere usura User Modus in Linux

Introductio ab interprete: Contra ingressum ingentes in vitas nostras varias continentium, satis interesting et utilis esse potest explorare quaenam technologiae omnes semel inceperunt. Quaedam eorum hodie utiliter adhiberi possunt, sed non omnes huiusmodi methodi meminerunt (vel scit si non in celeri progressu deprehensi fuerint). Una talis technica est modus User Linux. Auctor archetypi multum fecit fodiendi, remanens quae veterum explicationum adhuc operantur et quae non sunt, et quasi gradatim instrue- tionis aliquid comparare, quomodo te praebeas homebrew UML in 2k19. Et sic vocavimus auctorem primi nuntii ad Habr Cadey, ut si interrogationes habes - Anglice in commentarios interroga.

Quomodo incipere usura User Modus in Linux

Modus usoris in Linux est re vera portum Linux nucleum sibi. Hic modus permittit te ad plenam Linux acinum tamquam processum usoris currere et communiter ab electricis exactoribus probare. Sed hic modus etiam est utilis sicut instrumentum commune solitationis, cuius principium est simile operationi virtualium machinis. Hic modus magis solitariam praebet quam Docker, sed minus quam machina virtualis mobilis plena sicut KVM seu Box Virtualis.

In genere, Modus usoris velut instrumentum extraneum ac difficile uti potest, sed tamen usus suos habet. Post omnes, hoc est Linux nucleus plenus-accurrens ab usuario inmunito. Haec factura potentia intrusa codicem concedit ut sine ullo terrore ad machinam exercitus currendam permittat. Quae cum sit nucleus plenus, eius processus ab machinis ornatus dissociatur, id est. processus currit intus User Modus non potest esse visibilis ad exercitum. Hoc non est sicut vas consuetum Docker, in quo casu apparatus exercitus semper processus intra repositorium videt. Vide hanc peciam pstree ab uno de servientibus meis; 

containerd─┬─containerd-shim─┬─tini─┬─dnsd───19*[{dnsd}]
           │                 │      └─s6-svscan───s6-supervise
           │                 └─10*[{containerd-shim}]
           ├─containerd-shim─┬─tini─┬─aerial───21*[{aerial}]
           │                 │      └─s6-svscan───s6-supervise
           │                 └─10*[{containerd-shim}]
           ├─containerd-shim─┬─tini─┬─s6-svscan───s6-supervise
           │                 │      └─surl
           │                 └─9*[{containerd-shim}]
           ├─containerd-shim─┬─tini─┬─h───13*[{h}]
           │                 │      └─s6-svscan───s6-supervise
           │                 └─10*[{containerd-shim}]
           ├─containerd-shim─┬─goproxy───14*[{goproxy}]
           │                 └─9*[{containerd-shim}]
           └─32*[{containerd}]

Et hoc confer cum pstree nuclei Linux in modo usoris:

linux─┬─5*[linux]
      └─slirp

Cum vasis Docker operando, ex exercitu videre possum nomina processuum qui in hospite currunt. Hoc cum Linux usoris Modus fieri non potest. Quid est hoc? Hoc significat instrumenta magna currendi per subsystem audiendum Linux non video processus currit in refectio mea. Sed in nonnullis adiunctis haec factura ancipiti gladio esse potest.

In genere, tota posta infra est collectio investigationis et conatus asperi ad optatum exitum. Ad hoc faciendum, varia instrumenta antiqua uti habui, fontes nucleos legere, intensive debugging codicis in diebus, cum adhuc in ludo litterario essem, et etiam tynkker cum Heroku aedificat utendo speciali binario ad instrumenta quae necessaria sunt. . Totum hoc opus latinas in mea IRC ad me magicam vocavit. Spero quod post haec documenta certa documenta habenti ut idem experiatur cum nucleis recentioribus et OS versionibus.

tionibus

Modus usoris constituendi Linux pluribus gradibus fit:

  • clientelas exercitui insertis;
  • Linux nucleum deprimens;
  • figuram nucleo construunt;
  • granum conventus;
  • binarii insertis;
  • hospitis ratio lima configurans;
  • selectio parametri nuclei deducunt;
  • retis hospitem instituens;
  • deductis hospitis nucleo.

Pono, si id ipsum facere volueris, omnia fere in Ubuntu vel Debianco quasi systemate descripta omnia facere feres. Omnia supradicta efficere conatus sum in distributione mea dilecta - Alpina, sed nihil inde venit, ut videtur ex eo quod Linux nucleos glibc-ismos duros ligandi habet pro rectoribus in modo usoris. Hoc consilium referre ad fluvium postquam problema tandem intellego.

Installing clientelas in exercitum

Ubuntu sequentes sarcinas saltem requirit ut nucleum Linux aedificaret (de institutione pura);

- 'build-essential'
- 'flex'
- 'bison'
- 'xz-utils'
- 'wget'
- 'ca-certificates'
- 'bc'
- 'linux-headers'

Eos instituere potes cum sequenti praecepto (velut radice vel cum sudo);

apt-get -y install build-essential flex bison xz-utils wget ca-certificates bc 
                   linux-headers-$(uname -r)

Nota quod progressio menu nuclei Linux currens requiret institutionem of libncurses-dev. Confirme hoc utens mandato sequenti inauguratur (velut radix vel sudo utens);

apt-get -y install libncurses-dev

Download nucleus

Decernite ubi mittis ac deinde nucleos aedificare. Ad hanc operationem, debes collocare circa 1,3 GB spatium orbis rigidi, sic fac habeas.

Post ire ad kernel.org et Domicilium obtine ut versionem nuclei novissimi stabilis deponas. In tempore scribebat hoc post: https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.1.16.tar.xz

Download hanc lima utens 'wget':

wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.1.16.tar.xz

Et extrahendum cum 'tar':

tar xJf linux-5.1.16.tar.xz

Directorium iam creatum ingredimur cum in sarcinulis tarballis iniungendo:

cd linux-5.1.16

Kernel constructum setup

Systema constructum nucleus est paro Makefiles с multi consuetudo instrumentorum et scriptorum ad processum automatendum. Primum, aperi programma interactive.

make ARCH=um menuconfig

Ex parte aedificabit et alternis capsam tibi ostendet. cum'[Select]', configurare poteris Tractu seu Intra claves. Ad fenestram navigare, ut solet, cum sagittis tincidunt "ascende" et "descende", et elementa selecta - "sinistra" vel "dextra".

Visum monstratorem —> significat te esse in submenu, accessum ab clavem Intra. patet via ex eo per'[Exit]'.

Sequentes options includere in[Select]et fac iuxta eas habent:

UML-specific Options:
  - Host filesystem
Networking support (enable this to get the submenu to show up):
  - Networking options:
    - TCP/IP Networking
UML Network devices:
  - Virtual network device
  - SLiRP transport

Hoc est, hanc fenestram exire ex sequenti modo eligendo.[Exit]'. Fac modo te admoneri ut configurationem in fine servare et eligere '.[Yes]'.

Commendo te circum ludere cum nucleo optiones aedificandi post hanc post lectionem. Ex his experimentis multum discere potes quomodo mechanici nuclei humili gradu laborant et quam diversa vexilla afficiunt quomodo nucleus aedificatur.

Building nucleum

Linux nucleus magnus progressio est quae multum facit. Etiam cum tali configuratione minima in ferramentis antiquis, capere potest aliquantulum temporis aedificandi. nucleum sic construe cum sequenti mandato;

make ARCH=um -j$(nproc)

Quod? Hoc mandatum structori nostro indicabit ut omnia prompta CPU coros et sequelis in processu aedificando utantur. Team $(nproc) fine aedificate substituit output imperium nprocquae est pars coreutils in vexillo Decuria aedificare.

Post aliquod tempus, nucleus noster in documentum exsecutabile compigatur ./linux.

Installing binarii

Cum User Modus in Linux binarium regularem creat, eum instituere potes sicut quaelibet alia utilitas. Ecce quomodo egi;

mkdir -p ~/bin
cp linux ~/bin/linux

Etiam pretium est ut certo ~/bin est in te $PATH:

export PATH=$PATH:$HOME/bin

Hospes Tabularii Configurans System

Facere directorium hospitii ratio lima:

mkdir -p $HOME/prefix/uml-demo
cd $HOME/prefix

Aperta alpinelinux.org et in download sectionem invenire ipsam download link MINI ROOT FILESYSTEM. In tempore scribendi haec erat;

http://dl-cdn.alpinelinux.org/alpine/v3.10/releases/x86_64/alpine-minirootfs-3.10.0-x86_64.tar.gz

Download hac tarball utens wget:

wget -O alpine-rootfs.tgz http://dl-cdn.alpinelinux.org/alpine/v3.10/releases/x86_64/alpine-minirootfs-3.10.0-x86_64.tar.gz

Nunc indicem paginarum hospitum intrant et archivum extrahunt;

cd uml-demo
tar xf ../alpine-rootfs.tgz

Descriptas actiones parvam tabulam systematis templates creabit. Propter naturam systematis difficillimum erit per villicum Alpinum fasciculos instituere. Sed hoc FS satis erit generalem rationem perpendere.

Etiam opus est instrumentum tin ut ne memoria consummatio processus Zombie nucleus noster hospes. 

wget -O tini https://github.com/krallin/tini/releases/download/v0.18.0/tini-static
chmod +x tini

Partum nucleum order versus

Linux nucleus, sicut pleraque alia programmata, mandatum habet rationes rectae quae accedere possunt per clavem specificando --help.

ipsum -help

linux --help
User Mode Linux v5.1.16
        available at http://user-mode-linux.sourceforge.net/

--showconfig
    Prints the config file that this UML binary was generated from.

iomem=<name>,<file>
    Configure <file> as an IO memory region named <name>.

mem=<Amount of desired ram>
    This controls how much "physical" memory the kernel allocates
    for the system. The size is specified as a number followed by
    one of 'k', 'K', 'm', 'M', which have the obvious meanings.
    This is not related to the amount of memory in the host.  It can
    be more, and the excess, if it's ever used, will just be swapped out.
        Example: mem=64M

--help
    Prints this message.

debug
    this flag is not needed to run gdb on UML in skas mode

root=<file containing the root fs>
    This is actually used by the generic kernel in exactly the same
    way as in any other kernel. If you configure a number of block
    devices and want to boot off something other than ubd0, you
    would use something like:
        root=/dev/ubd5

--version
    Prints the version number of the kernel.

umid=<name>
    This is used to assign a unique identity to this UML machine and
    is used for naming the pid file and management console socket.

con[0-9]*=<channel description>
    Attach a console or serial line to a host channel.  See
    http://user-mode-linux.sourceforge.net/old/input.html for a complete
    description of this switch.

eth[0-9]+=<transport>,<options>
    Configure a network device.
    
aio=2.4
    This is used to force UML to use 2.4-style AIO even when 2.6 AIO is
    available.  2.4 AIO is a single thread that handles one request at a
    time, synchronously.  2.6 AIO is a thread which uses the 2.6 AIO
    interface to handle an arbitrary number of pending requests.  2.6 AIO
    is not available in tt mode, on 2.4 hosts, or when UML is built with
    /usr/include/linux/aio_abi.h not available.  Many distributions don't
    include aio_abi.h, so you will need to copy it from a kernel tree to
    your /usr/include/linux in order to build an AIO-capable UML

nosysemu
    Turns off syscall emulation patch for ptrace (SYSEMU).
    SYSEMU is a performance-patch introduced by Laurent Vivier. It changes
    behaviour of ptrace() and helps reduce host context switch rates.
    To make it work, you need a kernel patch for your host, too.
    See http://perso.wanadoo.fr/laurent.vivier/UML/ for further
    information.

uml_dir=<directory>
    The location to place the pid and umid files.

quiet
    Turns off information messages during boot.

hostfs=<root dir>,<flags>,...
    This is used to set hostfs parameters.  The root directory argument
    is used to confine all hostfs mounts to within the specified directory
    tree on the host.  If this isn't specified, then a user inside UML can
    mount anything on the host that's accessible to the user that's running
    it.
    The only flag currently supported is 'append', which specifies that all
    files opened by hostfs will be opened in append mode.

Haec tabula principalis Lorem parametri effert. Curramus nucleum cum minimo statuto optionum requiratur:

linux 
  root=/dev/root 
  rootfstype=hostfs 
  rootflags=$HOME/prefix/uml-demo 
  rw 
  mem=64M 
  init=/bin/sh

Lineae superiores nostri nucleum sequentem indicant;

  • Sumatur radix filesystem est pseudo fabrica /dev/root.
  • Elige hostfs ut radix filesystem exactoris.
  • Conscende hospitem filesystem nos in radice fabrica creati.
  • Et sic in lege-scribe modum.
  • Solo 64 megabytis RAMis utere (multo minus fretus uti potes quod facere cogitas, sed 64 MB quantum optima esse videtur).
  • Et statim incipit nucleus /bin/sh quam init—processus.

Curre hoc praeceptum et debes accipere aliquid sicut sequentia;

Unum sheet

Core dump limits :
        soft - 0
        hard - NONE
Checking that ptrace can change system call numbers...OK
Checking syscall emulation patch for ptrace...OK
Checking advanced syscall emulation patch for ptrace...OK
Checking environment variables for a tempdir...none found
Checking if /dev/shm is on tmpfs...OK
Checking PROT_EXEC mmap in /dev/shm...OK
Adding 32137216 bytes to physical memory to account for exec-shield gap
Linux version 5.1.16 (cadey@kahless) (gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1)) #30 Sun Jul 7 18:57:19 UTC 2019
Built 1 zonelists, mobility grouping on.  Total pages: 23898
Kernel command line: root=/dev/root rootflags=/home/cadey/dl/uml/alpine rootfstype=hostfs rw mem=64M init=/bin/sh
Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
Memory: 59584K/96920K available (2692K kernel code, 708K rwdata, 588K rodata, 104K init, 244K bss, 37336K reserved, 0K cma-reserved)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS: 15
clocksource: timer: mask: 0xffffffffffffffff max_cycles: 0x1cd42e205, max_idle_ns: 881590404426 ns
Calibrating delay loop... 7479.29 BogoMIPS (lpj=37396480)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes)
Checking that host ptys support output SIGIO...Yes
Checking that host ptys support SIGIO on close...No, enabling workaround
devtmpfs: initialized
random: get_random_bytes called from setup_net+0x48/0x1e0 with crng_init=0
Using 2.6 host AIO
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
futex hash table entries: 256 (order: 0, 6144 bytes)
NET: Registered protocol family 16
clocksource: Switched to clocksource timer
NET: Registered protocol family 2
tcp_listen_portaddr_hash hash table entries: 256 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
console [stderr0] disabled
mconsole (version 2) initialized on /home/cadey/.uml/tEwIjm/mconsole
Checking host MADV_REMOVE support...OK
workingset: timestamp_bits=62 max_order=14 bucket_order=0
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
io scheduler noop registered (default)
io scheduler bfq registered
loop: module loaded
NET: Registered protocol family 17
Initialized stdio console driver
Using a channel type which is configured out of UML
setup_one_line failed for device 1 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 2 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 3 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 4 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 5 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 6 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 7 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 8 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 9 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 10 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 11 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 12 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 13 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 14 : Configuration failed
Using a channel type which is configured out of UML
setup_one_line failed for device 15 : Configuration failed
Console initialized on /dev/tty0
console [tty0] enabled
console [mc-1] enabled
Failed to initialize ubd device 0 :Couldn't determine size of device's file
VFS: Mounted root (hostfs filesystem) on device 0:11.
devtmpfs: mounted
This architecture does not have kernel memory protection.
Run /bin/sh as init process
/bin/sh: can't access tty; job control turned off
random: fast init done
/ #

Superius tractationes nobis dabit hospes ratio ad minimum, sine similibus /proc vel hostname assignata. Exempli causa, sequentia praecepta experire:

- uname -av
- cat /proc/self/pid
- hostname

Ad de hospitio log exit or prem-imperium, d. Hic necabit corticem, sequitur pavore nucleum;

/ # exit
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000
fish: “./linux root=/dev/root rootflag…” terminated by signal SIGABRT (Abort)

Hoc miraculum nuclei cepimus quod Linux nucleum putat processum initializationem semper currere. Sine qua ratio iam munus non potest et claudit. Sed cum hic modus processus utentis sit, effectus inde se mittit ad SIGABRTque ducit ad exitum.

Hospes network usque ad profecta

Sed hoc est ubi res incipiunt in nos peccasse. Network in modo Linux usoris est ubi totus conceptus limitis "modi usoris" dissolvi incipit. Ceterum retis fere systema circumscribi solet privilegiatus Modi executioni pro omnibus nobis comprehensibiles rationes.

Nota. per.: plura legere potes de optionibus differentibus ad operandum cum reticulo in UML hic.

Iter slirp

Est tamen instrumentum antiquum et fere sine instrumento Slirp, cum quo Modus Linux usoris cum reticulo se cohaerere potest. Dure operatur sicut gradus usoris TCP/IP acervus et nulla ratio licentiae ad currendum eget. Hoc instrumentum erat dimisit in MMIIIac renovatio ultima data est anno 2006. Slirp antiquissimum est. Per tempus sine auxilio ac updates, compilatores eo usque venerunt ut hoc instrumentum modo modo describi possit "codex putrescat".

Sic ex Ubuntu repositoria download Slirp et currere conantur:

sudo apt-get install slirp
/usr/bin/slirp
Slirp v1.0.17 (BETA)

Copyright (c) 1995,1996 Danny Gasparovski and others.
All rights reserved.
This program is copyrighted, free software.
Please read the file COPYRIGHT that came with the Slirp
package for the terms and conditions of the copyright.

IP address of Slirp host: 127.0.0.1
IP address of your DNS(s): 1.1.1.1, 10.77.0.7
Your address is 10.0.2.15
(or anything else you want)

Type five zeroes (0) to exit.

[autodetect SLIP/CSLIP, MTU 1500, MRU 1500, 115200 baud]

SLiRP Ready ...
fish: “/usr/bin/slirp” terminated by signal SIGSEGV (Address boundary error)

Proh deos. Instruamus Slirp debugger et vide si possumus quid hic agatur:

sudo apt-get install gdb slirp-dbgsym
gdb /usr/bin/slirp
GNU gdb (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/bin/slirp...Reading symbols from /usr/lib/debug/.build-id/c6/2e75b69581a1ad85f72ac32c0d7af913d4861f.debug...done.
done.
(gdb) run
Starting program: /usr/bin/slirp
Slirp v1.0.17 (BETA)

Copyright (c) 1995,1996 Danny Gasparovski and others.
All rights reserved.
This program is copyrighted, free software.
Please read the file COPYRIGHT that came with the Slirp
package for the terms and conditions of the copyright.

IP address of Slirp host: 127.0.0.1
IP address of your DNS(s): 1.1.1.1, 10.77.0.7
Your address is 10.0.2.15
(or anything else you want)

Type five zeroes (0) to exit.

[autodetect SLIP/CSLIP, MTU 1500, MRU 1500, 115200 baud]

SLiRP Ready ...

Program received signal SIGSEGV, Segmentation fault.
                                                    ip_slowtimo () at ip_input.c:457
457     ip_input.c: No such file or directory.

Error in nos pulsat haec linea. Intueamur acervum, fortasse aliquid adiuvabit nos ibi;

(gdb) bt full
#0  ip_slowtimo () at ip_input.c:457
        fp = 0x55784a40
#1  0x000055555556a57c in main_loop () at ./main.c:980
        so = <optimized out>
        so_next = <optimized out>
        timeout = {tv_sec = 0, tv_usec = 0}
        ret = 0
        nfds = 0
        ttyp = <optimized out>
        ttyp2 = <optimized out>
        best_time = <optimized out>
        tmp_time = <optimized out>
#2  0x000055555555b116 in main (argc=1, argv=0x7fffffffdc58) at ./main.c:95
No locals.

Hic cernimus fragorem in initio oriri ansa principalis, cum elabi conatur speculativa compescere. Hic ego lusione cedere conatur. Sed videamus si Slirp ex operibus structa. Ego rursus downloaded archivo directe ex situ Sourceforgequia trahere aliquid inde per lineam rectam est dolor;

cd ~/dl
wget https://xena.greedo.xeserv.us/files/slirp-1.0.16.tar.gz
tar xf slirp-1.0.16.tar.gz
cd slirp-1.0.16/src
./configure --prefix=$HOME/prefix/slirp
make

Hic cernimus apices de indefinito constructo in functionibus, id est, non posse ligare file binarii inde. Apparet inter 2006 et hoc punctum, gcc signa producere cessaverunt in structuris in functionibus imaginum intermediarum compilatarum. Sit scriptor keyword reponere tentant inline inani commento et eventum intuere:

vi slirp.h
:6
a
<enter>
#define inline /**/
<escape>
:wq
make

Non. Hoc vel non operatur. Adhuc symbola ad haec munera non invenio.

Hic posui et inspexi Github Heroku constructum packages. Mea theoria fuit quod quidam Heroku sarcinam fabricandi binarios quos opus habebat contineret. In fine, inquisitionis me duxit super hic. Ego downloaded et pacto uml.tar.gz reperit ita:

total 6136
-rwxr-xr-x 1 cadey cadey   79744 Dec 10  2017 ifconfig*
-rwxr-xr-x 1 cadey cadey     373 Dec 13  2017 init*
-rwxr-xr-x 1 cadey cadey  149688 Dec 10  2017 insmod*
-rwxr-xr-x 1 cadey cadey   66600 Dec 10  2017 route*
-rwxr-xr-x 1 cadey cadey  181056 Jun 26  2015 slirp*
-rwxr-xr-x 1 cadey cadey 5786592 Dec 15  2017 uml*
-rwxr-xr-x 1 cadey cadey     211 Dec 13  2017 uml_run*

Hoc binarium lapsus est! Operatur?

./slirp
Slirp v1.0.17 (BETA) FULL_BOLT

Copyright (c) 1995,1996 Danny Gasparovski and others.
All rights reserved.
This program is copyrighted, free software.
Please read the file COPYRIGHT that came with the Slirp
package for the terms and conditions of the copyright.

IP address of Slirp host: 127.0.0.1
IP address of your DNS(s): 1.1.1.1, 10.77.0.7
Your address is 10.0.2.15
(or anything else you want)

Type five zeroes (0) to exit.

[autodetect SLIP/CSLIP, MTU 1500, MRU 1500]

SLiRP Ready ...

Non fragorem - sic operari debet! Hoc binarii plantemus ~/bin/slirp:

cp slirp ~/bin/slirp

Si creator sarcinam removet, I fecit speculum.

network configurationis

Nunc retiaculum in hospitio nostro nucleo constituamus. Update Lorem optiones:

linux 
  root=/dev/root 
  rootfstype=hostfs 
  rootflags=$HOME/prefix/uml-demo 
  rw 
  mem=64M 
  eth0=slirp,,$HOME/bin/slirp 
  init=/bin/sh

Nunc revertamur in retiaculis;

mount -t proc proc proc/
mount -t sysfs sys sys/

ifconfig eth0 10.0.2.14 netmask 255.255.255.240 broadcast 10.0.2.15
route add default gw 10.0.2.2

Duo prima figura imperii /proc и /sys necesse est opus ifconfigquae interfacies retiaculas ponit ad communicandum cum Slirp. Team route acinum fundit ad excitandam mensam cogere ut omnes negotiationes per Slirp cuniculum mitterentur. Hoc scriptor reprehendo cum interrogatione DNS:

nslookup google.com 8.8.8.8
Server:    8.8.8.8
Address 1: 8.8.8.8 dns.google

Name:      google.com
Address 1: 172.217.12.206 lga25s63-in-f14.1e100.net
Address 2: 2607:f8b0:4006:81b::200e lga25s63-in-x0e.1e100.net

Opera!

Nota per.: Apparenter cursorium primigenium in escritorio cum retiacula filo scripta esse, vel aliam figuram quae additis rectoribus non requirebat. In laptop cum WiFi 8265 e Intel, error occurrit cum retiaculis elevatis

/ # ifconfig eth0 10.0.2.14 netmask 255.255.255.240 broadcast 10.0.2.15
slirp_tramp failed - errno = 2
ifconfig: ioctl 0x8914 failed: No such file or directory
/ #

Videtur, nucleus non potest communicare cum auriga retis. Conatus firmware in nucleum componendi, proh dolor, condicionem non posuit. Tempore publicationis solutionem in hac configuratione reperire non potui. In simplicioribus configis (exempli gratia in Virtualbox), interface recte oritur.

Sit scriptor automate redirectio cum sequenti testa script:

#!/bin/sh
# init.sh

mount -t proc proc proc/
mount -t sysfs sys sys/
ifconfig eth0 10.0.2.14 netmask 255.255.255.240 broadcast 10.0.2.15
route add default gw 10.0.2.2

echo "networking set up"

exec /tini /bin/sh

Et attende ut exsecutabile;

chmod +x init.sh

Et tunc faciemus mutationes nuclei ad lineam mandatum;

linux 
  root=/dev/root 
  rootfstype=hostfs 
  rootflags=$HOME/prefix/uml-demo 
  rw 
  mem=64M 
  eth0=slirp,,$HOME/bin/slirp 
  init=/init.sh

Et repetamus:

SLiRP Ready ...
networking set up
/bin/sh: can't access tty; job control turned off

nslookup google.com 8.8.8.8
Server:    8.8.8.8
Address 1: 8.8.8.8 dns.google

Name:      google.com
Address 1: 172.217.12.206 lga25s63-in-f14.1e100.net
Address 2: 2607:f8b0:4004:800::200e iad30s09-in-x0e.1e100.net

Network quod firmum est!

docker file

Quo facilius omnia haec conquirerem, collegi Dockerfilequae automates plerisque gradibus descriptis et configuratione laborantem tibi dare debent. Ego quoque preconfigured nucleumqui habet omne quod in congreg. Sed interest intelligere me hie descripserim solum minimum occasum.

Spero hanc stationem adiuvari te intelligere quomodo nucleum hospitandi admoveas. Contigit ut aliquod genus monstri esset, sed divulgatio in animo erat ut dux comprehensivus in argumento conveniendi, instituendi et configurandi Modus User in Linux sub modernis versionibus systematis operandi huius familiae. Subsequens gradus inaugurari debet officia et alia programmata iam intra systema hospitem includere. Cum Docker imagines continens tarballs tantum promoventur, imaginem extrahere poteris docker exportac deinde iter institutionem suam in radicibus nuclei fasciculi hospitis determinare. Bene ergo testam script.

Speciales gratias Rkeene ab #lobsters in Freenode. Sine adiutorio debugging Slirp, hoc non longe obtinui. Nescio quomodo ratio eius Slackware lapsus recte operatur, sed mea Ubuntu et systemata Alpina lapsus et binarii Rkeene mihi suggesserunt non receperunt. Sed satis est mihi aliquid saltem opera mihi.

Source: www.habr.com

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