hi all!
i m using live cd.
during the make proces of binutils-2.16.1 (pass 1) the following error occured:

checking lex output file root... loop0: read i/o error, sector 9928
loop0: read i/o error, sector 9928
/mnt/lfs/binutils-build/binutils-2.16.1/ld/configure: line 4507: 6350 done
echo '%%
%%'
6351 Bus error |$LEX
configure: error : cannot find output from flex; giving up
make: *** [configure-ld] Error 1
make: Target 'all' not remade because of errors.


earlier i could not create binutils-build directory using d command given in book as lfs user. i did it by changing to root n made $LFS/binutils-build the working directory for binutils n proceeded

i also want to state that after this error i continued with make install that too had errors. i continued with a successful gcc compilation, but got trapped while compiling glibc which reqd ld at a stage.

need help.thanks in advance.

su - lfs
works, but you have to remember that $LFS is owned by root.
My normal procedure:
mkdir /mnt/lfs
cd /mnt/lfs
mkdir /tools
mkdir /sources
mkdir /build

then chown the three to lfs
cd build
tar ... [ whichever package ]
mkdir binutils-build
cd binutils-build
../configure ....
the other option, use the livecd and build everything as root, you can't harm the cd, just reboot and it's all reset

with the other errors, it looks like you made a typo or missed a step in setting up the environment.

I would recommend staring over and double or triple checking every line you enter.

It might also be an idea to use the r2052 [ for 32 bit ] or r2014 [ for 64 bit ] version of the livecd and use the current book, which is version 6.3

The 6.3 version uses newer versions of the software, binutils-2.17 for example.

and don't forget, lfs has the lfs-support@linuxfromscratch.org mailing list. [ membership required to post to it ] You might get faster responses on it, since most people using lfs spend more time reading email lists than website postings.

thanks for the response,
i 've already compiled whole linux without using live cd..using any kind of live cd is just not working.i m getting same error again n again..i did it using (debian n fedora as the host)...but still i m getting the error after booting...some thing like this..

vfs:unable to mount sda7

i've gone through many hints n mail archives but could not solve it..if u can help me..
thanks once again..

Sanjeet