Re: [gentoo-user] chroot: cannot run command `bin/bash': Exec format error

["Boyd Stephen Smith Jr." <bss03@volumehost.com>]

On Wednesday 22 February 2006 17:03, Bo Andresen <bo.andresen@gmail.com> 
wrote about '[gentoo-user] chroot: cannot run command `bin/bash': Exec 
format error':
> I have just purchased a new computer with a AMD Semphron 2800+ 64 bit
> processor. I am installing it following the gentoo handbook of the amd64
> architecture - only I am using the x86 minimal livecd (2005-r1) and the
> stage3-amd64-2005.1-r1.tar.bz2 tarball. Shouldn that be a problem?

Definitely a problem.

> livecd gentoo # chroot /mnt/gentoo bin/bash
> chroot: cannot run command `bin/bash': Exec format error

Your 32-but kernel can't run the 64-bit bash.  You'll have to use a 64-bit 
kernel (or as 32-bit stage3, and then gradually recompile)

> I did use LVM2 for partitioning but other than that I have followed the
> handbook very throughly. I hope someone has a solution.  Please feel
> free to ask for any information that may be helpful.

If you have a little bit of free space, do a 32-bit install to a separate 
LV.  No need to really do a full install, just enough so you can compile a 
64-bit kernel and install and configure your bootloader to load the 64-bit 
kernel.

That should be as easy as lvcreate, format, mount, extract 32-bit stage3, 
cp over /etc/resolv.conf, chroot, emerge <your_favorite>-sources, 
cd /usr/src/<whatever>, zcat /proc/config.gz > .config, make oldconfig, 
make, emerge grub, mount /boot, grub-install, make install, umount boot, 
shutdown -r now.

(Maybe a few steps I'm missing, and I don't mess with (e)lilo.)

-- 
Boyd Stephen Smith Jr.
bss03@volumehost.com
ICQ: 514984 YM/AIM: DaTwinkDaddy
-- 
gentoo-user@gentoo.org mailing list