121 lines
3.4 KiB
Bash
Executable File
121 lines
3.4 KiB
Bash
Executable File
#!/bin/sh
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# -*- mode: sh; tab-width: 8; encoding: utf-8-unix -*-
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ROLE=testforge
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# export PATH=$PATH:/usr/local/bin
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MOUNTS="mnt/i mnt/j mnt/o"
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. /usr/local/bin/usr_local_tput.bash
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error () { retval=$1 ; shift; ERROR "$0" $* ; exit $retval ; }
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info () { INFO " $0 " $* ; }
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# must be run as root
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[ "`id -u`" -ne "0" ] && error 1 "must be run as root"
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if [ "$#" -eq "0" ] ; then
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error 2 "give an absolute directory name as argument"
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fi
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LARGS=""
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CMD=""
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while true; do
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case "$1" in
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'-'*)
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LARGS="$LARGS $1"
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shift
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;;
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*)
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break
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;;
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esac
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done
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root=$1
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shift
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if [ ! -d "$root" ] ; then
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error 3 "absolute directory name for chroot not found - $root"
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fi
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# unix partition
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[ -d $root/lost+found ] || exit 4
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# linux partition
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[ -e $root/usr/src/ ] || exit 5
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cd $root || exit 6
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if [ ! -d boot ] ; then
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error 7 "missing boot/"
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fi
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for file in tmp usr/tmp var/tmp ; do
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[ -d $file ] && continue
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mkdir $file || error 8 " missing directory $file"
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chmod 1777 $file
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done
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# df /var/tmp | grep -q sd.12 || mount /var/tmp
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for file in proc sys dev dev/pts dev/shm usr ; do
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[ -d $file ] && continue
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mkdir $file || exit 9
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chmod 755 $file
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done
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# Think -R is causing problems
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[ -e proc/self ] || mount -t proc none proc || error 10
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# this was rbind
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[ -e sys/kernel ] || mount -o bind /sys sys || error 12
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[ -e dev/null ] || mount -o bind /dev dev || error 11
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[ -e /dev/pts/0 ] || \
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mount -t devpts -o rw,relatime,mode=600 devpts dev/pts \
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|| error 12
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#? try mount| while read a on what type [ tmpfs cgroup binfmt_misc? ] without rbind
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mount| while read what foo on bar type rest ; do
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# cgroup devpts devtmpfs ecryptfs ext2 fuseblk proc rpc_pipefs sysfs tmpfs vfat
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# leave real disks for $MOUNTS
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[ $type = 'fuse' -o $type = 'ext2' -o $type = 'ext4' -o $type = 'vfat' -o ] && continue
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# have done these
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[ $type = 'proc' -o $type = 'sys' -o $type = 'dev' -o $type = 'devpts' -o ] && continue
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DBUG "Dunno $what $on $type"
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done
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# check for /dev/loop devices - up to 255 on android
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[ -e /dev/loop1 ] || \
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( cd /dev && \
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for i in 0 1 2 3 4 5 6 7 ; do
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[ -e loop$i ] && continue
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mknod loop$i b 7 $i
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chmod 660 loop$i
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chgrp disk loop$i
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done )
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for elt in $MOUNTS ; do
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[ -d $elt ] || { mkdir $elt ; chmod 755 $elt ; }
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grep -q /$elt /proc/mounts || continue
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[ -d $elt/tmp ] && continue
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grep -q $root/$elt /proc/mounts && continue
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mount --bind /$elt $root/$elt
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done
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# You'll also want to copy over resolv.conf in order to have proper DNS name
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# resolution from inside the chroot:
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# but in chroot, you'll need to change this to your connected IP address.
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cp -L /etc/resolv.conf etc || exit 16
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for file in .bashrc .profile .jedrc ; do
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[ -f root/$file ] || \
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cp -p /root/$file root/$file
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done
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EARGS="CHROOT=1 LANG=en_US.UTF-8 LC_COLLATE=C"
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EELTS="$EELTS TERM DISPLAY HOME USER LOGNAME USERNAME PATH"
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EELTS="$EELTS http_proxy https_proxy socks_proxy no_proxy"
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for elt in $EELTS ; do
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EARGS="$EARGS `env|grep ^${elt}=`"
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done
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# was /bin/bash -l
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[ "$#" -eq 0 ] && set -- /bin/sh -i
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# Now you can chroot into your new system. Use env before chroot to ensure that no
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# environment variables from the installation media are used by your new system:
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#? PATH=$PATH
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echo chroot $LARGS $root /usr/bin/env -i $EARGS "$@"
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chroot $LARGS $root /usr/bin/env -i $EARGS "$@"
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