Error when tuning the toolchain

Chris Staub chris at
Mon Oct 26 06:55:29 PDT 2009

On 10/26/2009 09:43 AM, Simone Dalmasso wrote:
> Hi list. I'm using the lfs live cd on an empty virtual machine. I'm
> following the lfs book but I get an error when I try to adjust the
> toolchain in the chapter 5.7.
> The error is:
> sudo gcc -dumpspecs | sed 's@^/lib/' \
>  > `dirname $(gcc -print-libgcc-file-name)`/specs
> password: gcc unrecognized option "-mtune=pentiumpro"
> sed: can't read (dirname
> /tools/lib/gcc/i686-pc-linux-gnu/4.1.2/libgcc.a): no such file or directory
> sed: can't read /specs: No such file or directory
The book's instructions do not say to use "sudo". All of Chapter 5 must 
be done entirely as the LFS user. If you have been using root/sudo at 
any point after starting Chapter 5, you will need to rm -rf /tools/* and 
go back to the beginning. If there is some part of the instructions that 
don't work without sudo, it means you've missed something.

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