Hello, Le dimanche 18 septembre 2011 11:02:43, Geert Stappers a écrit : > On Thu, Sep 15, 2011 at 05:46:39PM +0400, Dmitry Kurochkin wrote: > > Hello. > > > > I am trying to setup a Debian chroot on Netgear WNDR3700 router with > > OpenWRT. Unfortunately, I can not get binaries to run. The only binary > > from debootstrapped chroot I could run is > > /lib/mips-linux-gnu/ld-2.13.so. But if I try running any binary with it > > (e.g. /lib/mips-linux-gnu/ld-2.13.so /bin/ls), it just hangs without a > > message. I tried setting debug and verbose environment variables for > > the loader, but it still outputs nothing. I also tried mipsel > > architecture and libc6 versions from testing and stable, but it does not > > help. > > > > Can somebody explain me why it fails? > > The three day silence seems to tell "nope" ;-) > > > Below is some info that might help. Please let me know if you need any > > other info or run any tests. > > I find it an interresting problem, but I it is beyond my current knowledge. > I even don't know if it could work, but *lets assume* that the OpenWRT > kernel plus OpenWRT userland can "chroot into" Debian userland.
Keep in mind that the OpenWrt kernel has a patch to disable the use of the in- kernel floating point emulator, and so binaries compiled by OpenWrt are done so using a soft-float toolchain. This is not the case for Debian binaries afaik. > > > # uname -a > > Linux netgate 2.6.39.4 #1 Tue Sep 6 09:58:59 CEST 2011 mips GNU/Linux > > > > # file /bin/busybox > > /bin/busybox: ELF 32-bit MSB executable, MIPS, MIPS32 rel2 version 1, > > dynamically linked (uses shared libs), corrupted section header size > > > > # file /chroot/bin/ls > > /chroot/bin/ls: ELF 32-bit MSB executable, MIPS, MIPS-II version 1 > > (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.26, > > with unknown capability 0x41000000 = 0xf676e75, with unknown capability > > 0x10000 = 0x70401, stripped > > How 'MIPS32 rel2 version 1' relates to 'MIPS-II version 1 (SYSV)' is > unknown to me. It does not for me as well. But it looks like Debian binaries are compiled with an earlier ABI which is more compatible than MIPS32r2. > > > # cat /proc/cpuinfo > > system type : Atheros AR7161 rev 2 > > machine : NETGEAR WNDR3700 > > processor : 0 > > cpu model : MIPS 24Kc V7.4 > > BogoMIPS : 452.19 > > <snip/> > > > As I understand the problem is a "binfmt thingy". Sorry, I can't explain > it. > > This is partial output of 'aptitude show binfmt-support' > allows system administrators to register interpreters for > various binary formats based on a magic number > > My advice is to play with OpenWRT kernel configuration for "binfmt". > > Hope this helps > > > Groeten > Geert Stappers > > > And is there a policy on top-posting vs. bottom-posting? > > Yes. -- Florian -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
