On 10/25/2017 11:02 AM, Bruce Dubbs wrote:
Ken Moffat wrote:
On Tue, Oct 24, 2017 at 03:30:10PM -0700, Paul Rogers wrote:
(trimming to one point)
So, once LFS is finished, then there may be some "essentials" one needs
immediately, e.g. preferred editor, environment, iptables firewall,
etc., but soon after that one needs to get networking running, boot and
run in the new system. Yes, the LFS system is so Spartan it's
unpleasant to use, but there's no good reason to put off booting too
long. It's better done before there are too many added complications.
I have no problem accessing the internet from chroot. You only have to
ensure that the virtual file systems are mounted as in LFS Section 6.2.2
and 6.2.3.
$ cat mount-virt.sh
#!/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 $LFS/run/shm
# Add as appropriate
#mountbind usr/src
#mountbind boot
================================
alias lfs='sudo /usr/sbin/chroot /mnt/lfs /usr/bin/env -i HOME=/root
TERM="$TERM" PS1="\u:\w\\\\$ " PATH=/bin:/usr/bin:/sbin:/usr/sbin
/bin/bash --login'
-- Bruce
P.S. It's useful to have a unmount-virt.sh script also.
I use a lfs-chroot.sh script to do this in ~/bin. Probably not ideal for
all users, but first one in umounts when it exits. Works for me.
#!/bin/bash
# Begin ~/bin/lfs-chroot.sh
UMOUNT=0
mount | grep /media/lfs/dev
if test "${?}" -ne "0"; then
UMOUNT=1
sudo mount --bind /dev /media/lfs/dev
sudo mount --bind /dev/pts /media/lfs/dev/pts
sudo mount --bind /dev/shm /media/lfs/dev/shm
sudo mount --bind /sys /media/lfs/sys
sudo mount --bind /proc /media/lfs/proc
fi
sudo /usr/sbin/chroot /media/lfs /usr/bin/env -i \
HOME=/root TERM="$TERM" PS1='\u:\w\$ ' \
PATH=/bin:/usr/bin:/sbin:/usr/sbin \
/bin/bash --login
if test "${UMOUNT}" -eq "1"; then
sudo umount /media/lfs/dev/{pts,shm}
sudo umount /media/lfs/dev
sudo umount /media/lfs/sys
sudo umount /media/lfs/proc
fi
--DJ
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