I have a 32-bit PXE environment and I want to chroot to a CentOS x64 root filesystem. Of course that doesn't work. Any tricks or hacks that would allow me to do that? Currently I get the error:
chroot: /bin/bash: Exec format error
What if I updated my PXE environment to 64-bit. Could I then chroot to a 32-bit? I use PXE to quickly troubleshoot both 32-bit and 64-bit arch.
Thanks. -Scott
On 10/20/10 19:23, Scott Johnson wrote:
I have a 32-bit PXE environment and I want to chroot to a CentOS x64 root filesystem. Of course that doesn't work. Any tricks or hacks that would allow me to do that? Currently I get the error:
chroot: /bin/bash: Exec format error
What if I updated my PXE environment to 64-bit. Could I then chroot to a 32-bit? I use PXE to quickly troubleshoot both 32-bit and 64-bit arch.
Thanks. -Scott
Booting an x86-64 kernel with the proper config options set to enable execution of 32 bit binaries should allow you to do that. I think.
Glenn
--- On Wed, 10/20/10, RedShift redshift@pandora.be wrote:
From: RedShift redshift@pandora.be Subject: Re: [CentOS] chroot from 32-bit to 64-bit filesystem? To: "CentOS mailing list" centos@centos.org Date: Wednesday, October 20, 2010, 10:40 AM On 10/20/10 19:23, Scott Johnson wrote:
I have a 32-bit PXE environment and I want to chroot
to a CentOS x64 root filesystem. Of course that doesn't work. Any tricks or hacks that would allow me to do that? Currently I get the error:
chroot: /bin/bash: Exec format error
What if I updated my PXE environment to 64-bit.
Could I then chroot to a 32-bit?
I use PXE to quickly troubleshoot both 32-bit and
64-bit arch.
Thanks. -Scott
Booting an x86-64 kernel with the proper config options set to enable execution of 32 bit binaries should allow you to do that. I think.
Glenn
Yes - chroot from x86_64 to i386 works fine.
Here's a fairly complete method to setup enough of a chroot to use yum and rpm. The host is x86_64 and the chroot will be i386 in LVM.
http://paste.ubuntu.com/517149/
On 10/20/2010 10:23 AM, Scott Johnson wrote:
What if I updated my PXE environment to 64-bit. Could I then chroot to a 32-bit? I use PXE to quickly troubleshoot both 32-bit and 64-bit arch.
I'm pretty sure that you can run 64 bit executables only when you're running a 64 bit kernel. If you install and run a 64 bit kernel in your system without changing anything else, you should be able to chroot to a 64 bit environment.
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