Cannot Run Command Exec Format Error
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Cannot Execute Binary File: Exec Format Error
Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes
Cannot Execute Binary File Exec Format Error Fedora
a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top During a chroot attempt, I got this error: “chroot: failed to run
Cannot Execute Binary File Exec Format Error C++
command '/bin/bash': Exec format error” up vote 14 down vote favorite 1 I was following the instructions of this tutorial HOWTO: Purge and Reinstall Grub 2 from the Live CD, when I encountered an error at step 1, as I launched the command sudo chroot /mnt/temp The error was the following: chroot: failed to run command `/bin/bash': Exec format error Where does that come from? How do I get through? bash chroot share|improve this question edited Nov cannot execute binary file exec format error java 21 '10 at 11:34 Agmenor 5,96484089 asked Nov 21 '10 at 11:29 Grand Oxymore 3491510 add a comment| 5 Answers 5 active oldest votes up vote 17 down vote Verify that you are using the right Live CD. For example, verify you are not using a 32bit CD instead of a 64bit CD. You need a 64bit kernel to run 64bit code, so check your architecture. Assuming you mounted your system to be chrooted in /media/sda1, to determine the architecture you can: ls /media/sda1/* if you see lib64 in the output, it's probably a 64bit system share|improve this answer edited Jul 11 '11 at 9:36 4levels 1135 answered Nov 21 '10 at 11:30 Grand Oxymore 3491510 It is but still cannot chroot –Starx Mar 29 '12 at 10:03 add a comment| up vote 1 down vote The error means that your jail (/mnt/temp) does not contain a bash shell, or does not contain the libraries required to run the bash shell. If you created your jail using something like this: debootstrap --variant=buildd --arch i386 lucid /mnt/temp \ http://archive.ubuntu.com/ubuntu/ You probably meant to do this instead: debootstrap --variant=minbase --arch i386 lucid /mnt/temp \ http://archive.ubuntu.com/ubuntu/ However, as a technical answer to your problem, try: cp -r /bin /lib /mnt/temp This should allow you to chroot successfully, at which point you can do other things. There are about a million thin
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business http://unix.stackexchange.com/questions/41889/how-can-i-chroot-into-a-filesystem-with-a-different-architechture Learn more about hiring developers or posting ads with us Unix & Linux Questions Tags http://superuser.com/questions/435988/how-can-i-resolve-the-error-cannot-execute-binary-file/436081 Users Badges Unanswered Ask Question _ Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top How can exec format I chroot into a filesystem with a different architechture? up vote 24 down vote favorite 9 I'm trying to chroot into a Arch Linux ARM filesystem from x86_64. I've seen that it's possible to do using static qemu by copying the binary into the chroot system: $ cp /usr/bin/qemu-arm archarm-chroot/usr/bin But despite this I always get the following error: chroot: failed to run command ‘/bin/bash’: Exec format error I know this means that the architectures differ. Am exec format error I doing something wrong? chroot qemu arch-arm share|improve this question edited Mar 11 '15 at 20:46 jasonwryan 34.8k983133 asked Jun 28 '12 at 22:33 Jivings 4151311 1 You have to configure binfmt first, have a look at wiki.debian.org/QemuUserEmulation for a quiet short introduction. An example for configuring binfmt_misc can be found at svn.kju-app.org/trunk/qemu/qemu/qemu-binfmt-conf.sh –Ulrich Dangel Jun 28 '12 at 23:00 Qemu static packages don't appear to be in the Arch repositories. –Jivings Jun 28 '12 at 23:04 1 Sorry i don't use arch, but you should probably be able to build a static qemu package by adding -static to the linker options –Ulrich Dangel Jun 28 '12 at 23:07 add a comment| 6 Answers 6 active oldest votes up vote 11 down vote accepted You cannot chroot into different architecture. By chrooting, you are executing the binaries (from the chroot) on your architecture. Executing ARM binaries on x86 (and x86_64 in that matter) would lead to "Exec format error". If you want to run binaries from different architecture you will need an Emulator. Qemu is a good candidate for this, but you will need to learn how to use it. This would involve creating RootFS and compiling a kernel for ARM. You will need a toolchain for compiling ARM binaries (and kernel) perhaps. One thing is for sure: Forget the chroot method, you cannot
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Super User Questions Tags Users Badges Unanswered Ask Question _ Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top How can I resolve the error “cannot execute binary file”? up vote 36 down vote favorite 3 When I login using SSH, all I can see is this... -bash: /usr/bin/id: cannot execute binary file -bash: [: : integer expression expected I couldn't do anything in here. Commands such as halt, poweroff, reboot will return command not found. How can I fix this? I am using Debian Squeeze Linux linux bash ssh debian share|improve this question edited Jun 12 '12 at 22:31 Oliver Salzburg♦ 56.1k35185245 asked Jun 12 '12 at 21:26 superuser 1,85131428 4 What did you do to that machine? –slhck Jun 12 '12 at 21:32 1 the very last thing I did was install logwatch. Nothing else. –superuser Jun 12 '12 at 21:33 3 PATH is an environment variable which contains a list of folders which the shell searches for programs. ls for example, usually refers to /bin/ls, and your shell finds it by going through the folders listed in PATH one-by-one until it finds it, or if it doesn't find it in any of them, it gives up. I suppose a better starting point would be, what is the output of echo $PATH ? (edit: the export command is a way to define an environment variable in bash.) –Darth Android Jun 12 '12 at 21:41 1 Ah... I warned you not to shut the system down :P Can you get console access to it (physical monitor+keyboard attached)? Try booting the system in single-user mode (might be labelled as recovery mode) and see if you can get to a root shell. –Darth Android Jun 12 '12 at 21:51 2 @David you won't see any output after typing export PATH=/bin:/user/bin:/sbin:/usr/sbin. It's a silent command. –Ben Richards Jun 12 '12 at 21:57 | show 4 more comments 5 Answers 5 active oldest votes up vote 45 down vote accepted Usually that error message means Linux doesn't recognize the file as a shell script or as an executable file.