Re: Strange authorisation isuses:

On 6/16/22 08:33, Dragan ([email protected] via alfs-discuss Mailing List) wrote:
> On 16/06/2022 15:33, Pierre Labastie ([email protected] via alfs-discuss 
> Mailing List) wrote:
>> On Thu, 2022-06-16 at 14:17 +0200, Dragan wrote:

> I have just finished building jhalfs. I'm using the following to clean up lfs system 
> as lfs user:
> 
> sudo rm -rv 
> $LFS/{bin,boot,dev,media,mnt,jhalfs,opt,proc,root,run,sbin,srv,sys,tmp,usr,etc,var,tools,build,home,lib,lib64,log} 
> $LFS/usr/{bin,lib,sbin}
> 
> Sources in lfs are deliberately  not removed. The build yesterday was with sources in 
> /lfs and today without them. I remember that yesterday script stated that linux 
> tarball was not found /sources nor /sources/sources and have downloaded them (updated 
> files from latest release).

Attached are some scripts I use that you may find helpful.  There are some extra 
directories there, so customize for your situation.


> I have brought VM down after finishing previous build and booted in build system. 
> After that I have pulled jhalfs and started build.
> 
> Below can you se difference in kernel build time!!!!
> 
> Besides that I have noticed strong deviations in SBU build time with SBU at max 21s 
> with -j16 and 1min 15sec based on binutils standard and 73 sec as reported by jhalfs.
> 
> 
> ------------------------------------------------------
> --------------------------------------------------------------------------------
>   Building target 1002-kernel
>   [+++++++++++++++++++++++++++++++++\                          ] 1 min. 33 sec
>   Target 1002-kernel OK

Personally, I always turn on 'DO NOT use/display progress_bar'.  I don't find that 
useful.  I also do not use jhalfs to build the kernel.  I prefer to do that manually
as I usually customize the configuration each time.

I'll not that building in virtualbox will probably be a bit faster since there is not 
real disk access, but a long time ago I did a full build on a ram disk and compared 
to a spinning disk and found a speedup of about 15%.

> --------------------------------------------------------------------------------
> --------------------------------------------------------------------------------
>   Building target create-sbu_du-report
> /lfs/jhalfs/logs /lfs/jhalfs
> Using binutils-pass1-2.38 to obtain the SBU unit value.
> /lfs/jhalfs
> The SBU unit value is equal to 73 seconds at -j16.

Did you select 'Build Binutls pass1 without optimization (Real SBU)'  If not, that 
will throw off your values from the book by quite a bit.

   -- Bruce

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#!/bin/bash

function rmrf
{
   if test -d $LFS/$1 ; then
     $SUDO rm -rf $LFS/$1
   fi
}

if [ $EUID -ne 0 ]; then
  SUDO=sudo
else
  SUDO=""
fi

if [ x$LFS == x ]; then
  echo "LFS not set"
  exit 1
fi

sh umount-virt.sh || exit

rmrf bin   
rmrf dev   
rmrf home   
rmrf lib  
rmrf mnt   
rmrf proc 
rmrf run   
rmrf sys   
rmrf tools   
rmrf var 
rmrf boot   
rmrf etc  
rmrf jhalfs   
$SUDO rm -rf $LFS/lib64
rmrf media
rmrf opt
rmrf root
rmrf sbin
rmrf srv
rmrf tmp
rmrf usr

#!/bin/bash

function mountbind
{
   if ! mountpoint $LFS/$1 >/dev/null; then
     $SUDO mount --bind /$1 $LFS/$1 
     echo $LFS/$1 mounted
   else
     echo $LFS/$1 already mounted
   fi
}

function mounttype
{
   if ! mountpoint $LFS/$1 >/dev/null; then
     $SUDO mount -t $2 $3 $4 $5 $LFS/$1 
     echo $LFS/$1 mounted
   else
     echo $LFS/$1 already mounted
   fi
}

if [ $EUID -ne 0 ]; then
  SUDO=sudo
else
  SUDO=""
fi

if [ x$LFS == x ]; then
  echo "LFS not set"
  exit 1
fi


mountbind dev 
mounttype dev/pts devpts devpts -o gid=5,mode=620
mounttype proc    proc   proc
mounttype sys     sysfs  sysfs
mounttype run     tmpfs  run
mkdir $LFS/run/shm
mountbind usr/src
mountbind boot
mountbind home

#!/bin/bash

function unmount
{
   if mountpoint $LFS/$1 >/dev/null; then
     $SUDO umount $LFS/$1
     echo $LFS/$1 unmounted
   else
     echo $LFS/$1 was not mounted
   fi
}

if [ $EUID -ne 0 ]; then
  SUDO=sudo
else
  SUDO=""
fi

if [ x$LFS == x ]; then
  echo "LFS not set"
  exit 1
fi

unmount run
unmount sys
unmount proc
unmount dev/pts
unmount dev
unmount usr/src
unmount boot
unmount home