chroot

Artanicus · 05-07-2005, 02:46 PM

Im building my own distro, but am running into problems. Id want to test how its going via chroot, and that shouldnt be complicated, right? (:

Well, check this out:

Code:

# /usr/sbin/chroot /share/silmu/myboot/rootfs/                                     
/usr/sbin/chroot: cannot run command `/bin/sh': No such file or directory
# ls -la /share/silmu/rootfs/bin/sh 
lrwxrwxrwx  1 root root 7 2005-05-07 22:32 rootfs/bin/sh -> busybox*

Whats the case here? /bin/sh surely is there, why does chroot claim not to have found it?
I also tried with ash (also bultin in my busybox), no luck.

egag · 05-07-2005, 02:53 PM

do you also have a ../../lib dir. there with the basic libs & symlinks.?
( the ones from slack-cd/../a/glibc-solibs ).

egag

keefaz · 05-07-2005, 02:54 PM

could you post the output of 'pwd'
right after this output :
lrwxrwxrwx 1 root root 7 2005-05-07 22:32 rootfs/bin/sh -> busybox*

egag · 05-07-2005, 03:07 PM

Quote:

Originally posted by Artanicus

Well, check this out:

Code:

# /usr/sbin/chroot /share/silmu/myboot/rootfs/ /usr/sbin/chroot: cannot run command `/bin/sh': No such file or directory # ls -la /share/silmu/rootfs/bin/sh lrwxrwxrwx 1 root root 7 2005-05-07 22:32 rootfs/bin/sh -> busybox*

/share/silmu/myboot/rootfs/

/share/silmu/rootfs/bin/sh

also i'm missing the ../myboot/.. in the 2.nd line of code? ( typo ? )

egag

Artanicus · 05-07-2005, 03:10 PM

Code:

# tree rootfs/
rootfs/
|-- bin
|   |-- ash -> busybox
|   |-- busybox
|   |-- cat -> busybox
|   |-- chmod -> busybox
|   |-- chown -> busybox
|   |-- cp -> busybox
|   |-- date -> busybox
|   |-- echo -> busybox
|   |-- false -> busybox
|   |-- fgrep -> busybox
|   |-- grep -> busybox
|   |-- gunzip -> busybox
|   |-- hostname -> busybox
|   |-- kill -> busybox
|   |-- ln -> busybox
|   |-- ls -> busybox
|   |-- mkdir -> busybox
|   |-- mount -> busybox
|   |-- mv -> busybox
|   |-- ps -> busybox
|   |-- pwd -> busybox
|   |-- rm -> busybox
|   |-- rmdir -> busybox
|   |-- sh -> busybox
|   |-- sleep -> busybox
|   |-- tar -> busybox
|   |-- true -> busybox
|   |-- umount -> busybox
|   `-- zcat -> busybox
|-- linuxrc -> bin/busybox
|-- sbin
|   |-- ifconfig -> ../bin/busybox
|   |-- init -> ../bin/busybox
|   |-- loadkmap -> ../bin/busybox
|   |-- poweroff -> ../bin/busybox
|   |-- reboot -> ../bin/busybox
|   |-- swapoff -> ../bin/busybox
|   `-- swapon -> ../bin/busybox
`-- usr
    |-- bin
    |   |-- [ -> ../../bin/busybox
    |   |-- bunzip2 -> ../../bin/busybox
    |   |-- bzcat -> ../../bin/busybox
    |   |-- clear -> ../../bin/busybox
    |   |-- crontab -> ../../bin/busybox
    |   |-- deallocvt -> ../../bin/busybox
    |   |-- du -> ../../bin/busybox
    |   |-- env -> ../../bin/busybox
    |   |-- expr -> ../../bin/busybox
    |   |-- free -> ../../bin/busybox
    |   |-- head -> ../../bin/busybox
    |   |-- id -> ../../bin/busybox
    |   |-- install -> ../../bin/busybox
    |   |-- killall -> ../../bin/busybox
    |   |-- openvt -> ../../bin/busybox
    |   |-- readlink -> ../../bin/busybox
    |   |-- reset -> ../../bin/busybox
    |   |-- tail -> ../../bin/busybox
    |   |-- tee -> ../../bin/busybox
    |   |-- test -> ../../bin/busybox
    |   |-- time -> ../../bin/busybox
    |   |-- tr -> ../../bin/busybox
    |   |-- tty -> ../../bin/busybox
    |   |-- wc -> ../../bin/busybox
    |   |-- which -> ../../bin/busybox
    |   `-- yes -> ../../bin/busybox
    `-- sbin
        `-- crond -> ../../bin/busybox

5 directories, 64 files

egag, thats was a typo, yeah.

I guess its the libs Im missing.. theyre still at /share/silmu/myboot/uclibc-dev.. But then the error should be something different, right?

egag · 05-07-2005, 03:22 PM

don't know.
all i know is that the basic libs should be there to even run a simple script.
the error ( file not found ) could also mean
" cannot do anything , not even give the correct error-description ".

you'll need the lib.'s anyway.
just install them and try again.

egag

Artanicus · 05-07-2005, 03:27 PM

well, I threw in the uclibc-dev libs and includes, but it odesnt help.. No wonder, its missing vitals libs (compared to ldd /bin/sh) .. *sigh* I need a more up to date howto on making a floppydistro.. any suggestions? Sofar been following: http://www.xs4all.nl/~lennartb/insta...stalldisk.html

Ofcourse I could copy the libs from my own system. but that wouldnt be such a nice trick, considering the target systems will be very varied..

egag · 05-07-2005, 03:37 PM

i think you need to make some symlinks.
these 3 are the most basic:

--------
root@slack21:/home/egag# ls -al /lib/libc.so.6
lrwxrwxrwx 1 root root 13 2005-02-11 15:03 /lib/libc.so.6 -> libc-2.3.4.so
root@slack21:/home/egag# ls -al /lib/libdl.so.2
lrwxrwxrwx 1 root root 14 2005-02-11 15:03 /lib/libdl.so.2 -> libdl-2.3.4.so
root@slack21:/home/egag# ls -al /lib/ld-linux.so.2
lrwxrwxrwx 1 root root 11 2005-02-11 15:03 /lib/ld-linux.so.2 -> ld-2.3.4.so
-----------

egag

jackandking · 05-16-2005, 04:26 AM

try this "sudo chroot yourdir su -"