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|
#!/bin/bash
set -e
unmount_virtual()
{
umount "$1/proc" || true
umount "$1/sys" || true
umount "$1/tree/proc" || true
umount "$1/tree/sys" || true
}
pass_snapshot()
{
echo -n "$snapshotdir/$1-snapshot.tar.gz"
}
has_pass()
{
if [ -e $(pass_snapshot "$1") ]
then
return 0
else
return 1
fi
}
update_morph()
{
local dir="$1"
cp baserock-bootstrap "$dir/." # update bootstrap script
rm -rf "$dir/tree/baserock/gits/morph"
mkdir -p "$dir/tree/baserock/gits/morph"
cp -r . "$dir/tree/baserock/gits/morph/."
}
run_pass()
{
local dir="$1"
local passname="$2"
local tarball=$(pass_snapshot "$passname")
if "$snapshot" && has_pass "$passname"
then
tar -C "$dir" -xf "$tarball"
update_morph "$dir"
else
update_morph "$dir"
"./do-squeeze-chroot" bash -x baserock-bootstrap "$passname" || exit 1
if "$snapshot"
then
tar -C "$dir" -caf "$tarball" .
fi
fi
}
export LC_ALL=C
if [ "x$1" = x ]
then
echo "Usage: $0 chroot-dir" 1>&2
exit 1
fi
mkdir -p "$1"
dir="$1/squeeze-chroot"
: ${snapshot:=true}
snapshotdir="$1"
cat >"./do-squeeze-chroot" <<EOF
#!/bin/sh
# clear the temporary directory used outisde the chroot
export TMPDIR=
if mount -t proc proc "$dir/proc"; then
trap "umount \"$dir/proc\"" INT TERM EXIT
if mount -t sysfs sysfs "$dir/sys"; then
trap "umount \"$dir/proc\" \"$dir/sys\"" INT TERM EXIT
chroot "$dir" "\$@"
fi
fi
EOF
chmod +x "./do-squeeze-chroot"
if ([ "x$DEBIAN_MIRROR" = x ] && echo DEBIAN_MIRROR is unspecified >&2) ||
([ "x$GIT_BUNDLES" = x ] && echo GIT_BUNDLES is unspecified >&2) ||
([ "x$LFS_MIRROR" = x ] && echo LFS_MIRROR is unspecified >&2)
then
echo You have to set DEBIAN_MIRROR and other environment variables 1>&2
exit 1
fi
#DEBIAN_MIRROR="http://192.168.1.185/debian"
#LFS_MIRROR=http://192.168.1.185/lfs/
unmount_virtual "$dir"
rm -rf "$dir"
mkdir "$dir"
chrootsnapshot="$snapshotdir/squeeze.tar.gz"
if "$snapshot" && [ -e "$chrootsnapshot" ]
then
tar -C "$dir" -xf "$chrootsnapshot"
else
debootstrap \
--include=build-essential,\
gawk,bison,python,autoconf,autopoint,automake,gettext,libtool,\
help2man,texinfo,sudo,qemu-utils,parted,kpartx,mbr,extlinux \
squeeze "$dir" "$DEBIAN_MIRROR"
# We need a backport of tar 1.26. On ARM, older versions (possibly
# prior to 1.25) have a bug unpacking things onto an NFS filesystem.
# code.liw.fi has the backport, so we'll add that to apt's sources.list
# and install tar manually.
cat <<EOF >> "$dir/etc/apt/sources.list"
deb http://code.liw.fi/debian squeeze main
EOF
./do-squeeze-chroot apt-get update
./do-squeeze-chroot apt-get install --allow-unauthenticated tar
if "$snapshot"
then
tar -caf "$chrootsnapshot" -C "$dir" .
fi
fi
hostname > "$dir/etc/hostname"
cat <<EOF > "$dir/etc/hosts"
127.0.0.1 localhost
127.0.1.1 `hostname`
EOF
if [ "x$LFS_MIRROR" = x ]; then
cp wget-list "$dir/wget-list"
else
perl -M'Env' -lpe 's|^.*/|$LFS_MIRROR|' wget-list >"$dir/wget-list"
#gawk -v m="$LFS_MIRROR" '{gsub(/^.*\//, m)}; 1' wget-list >"$dir/wget-list"
#sed "s,^.*/,$LFS_MIRROR," wget-list > "$dir/wget-list"
fi
# Unpack existing snapshot, or run pass1 of bootstrap and then make snapshot.
if ! "$snapshot" || ! has_pass pass2a
then
run_pass "$dir" pass1
fi
if ! "$snapshot" || ! has_pass pass2b
then
run_pass "$dir" pass2a
fi
run_pass "$dir" pass2b
snapshot=false run_pass "$dir" pass3
echo "Passes 1, 2, and 3 of bootstrap done (possibly cached)."
|