chroot: cannot run command `/bin/bash'

[oskar kapala]

Hi,

I unmerged glibc, I know it's stupid, by I did it. I know how to solve
the problem, but sth is wrong with chroot:

I boot from liveCD 2006.0 (my arch is x86) and:

mount all my filesytem into /mnt/gentoo as a new root
mount -t proc none /mnt/gentoo/proc
mount -o bind /dev /mnt/gentoo/dev
chroot /mnt/gentoo /bin/bash

a I get:
chroot: cannot run command `/bin/bash': No such file or directory

of course file is present, executable, and I'm doing it as su...

I found some posts connected with problem, but I still can't solve it.

I have experience with such things, becouse I unmerged pam-login and
forgot to merge shadow before reboot :)

Thanks,
oskar

[William Kenworthy]

moriah ~ # ldd /bin/bash
linux-gate.so.1 => (0xffffe000)
libncurses.so.5 => /lib/libncurses.so.5 (0xb7f28000)
libdl.so.2 => /lib/libdl.so.2 (0xb7f23000)
libc.so.6 => /lib/libc.so.6 (0xb7dec000)
/lib/ld-linux.so.2 (0xb7f84000)
moriah ~ # equery belongs /lib/libc.so.6
[ Searching for file(s) /lib/libc.so.6 in *... ]
sys-libs/glibc-2.3.6-r4 (/lib/libc.so.6 -> libc-2.3.6.so)
moriah ~

so bash needs glibc!

Your best bet would be to locate a glibc bin package (from the
livecd?)and untar it in / of your system, then it should work enough to
rebuild properly. You could just copy in the missing libs as you
discover them, but thats probably going to be worse :(

BillK

Post by oskar kapala
Hi,
I unmerged glibc, I know it's stupid, by I did it. I know how to solve

[Matthias Bethke]

Hi oskar,

Post by oskar kapala
chroot: cannot run command `/bin/bash': No such file or directory
of course file is present, executable, and I'm doing it as su...

You should be fine if ou follow William's instructions. The reason for
this is the error the linker returns to execve(2):
| ENOENT The file filename or a script or ELF interpreter does not
| exist, or a shared library needed for file or inter-
| preter cannot be found.

cheers!
Matthias

[oskar kapala]

Hi,

Post by William Kenworthy
so bash needs glibc!

Sure :)

Post by William Kenworthy
Your best bet would be to locate a glibc bin package (from the
livecd?)and untar it in / of your system, then it should work enough to
rebuild properly. You could just copy in the missing libs as you
discover them, but thats probably going to be worse :(

I copied whole /mnt/liveCD/lib to my /mnt/gentoo/lib and chroot is
working now, but revdep-rebuilt is doing nothing. IMHO some reverse
dependencies are broken....
The worst thing is that emerge glibc faild

Output is:

(...)
checking whether i686-pc-linux-gnu-gcc accepts -g... yes
checking for i686-pc-linux-gnu-gcc option to accept ANSI C... none needed
checking how to run the C preprocessor... /lib/cpp
configure: error: C preprocessor "/lib/cpp" fails sanity check
See `config.log' for more details.

!!! ERROR: sys-libs/glibc-2.3.6-r4 failed.
Call stack:
ebuild.sh, line 1539: Called dyn_compile
ebuild.sh, line 939: Called src_compile
glibc-2.3.6-r4.ebuild, line 1128: Called toolchain-glibc_src_compile
glibc-2.3.6-r4.ebuild, line 215: Called glibc_do_configure 'linuxthreads'
glibc-2.3.6-r4.ebuild, line 905: Called die

!!! failed to configure glibc
!!! If you need support, post the topmost build error, and the call
stack if relevant.


BTW: I'm new on the mailing list, such this one: so I'm not sure how
to reply to concrete post. I'm using gmail - I send an ordinary email
to gentoo-***@gentoo.org. Please correct me if I'm doing sth wrong...

Thanks for help,
oskar