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annotate sources/native-root/sbin/init.sh @ 1117:725e41d66379

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Use Google's nameserver, use ntpd to set time for chroot (if necessary), don't umount home if we didn't mount it.
author Rob Landley <rob@landley.net>
date Wed, 16 Jun 2010 08:13:30 -0500
parents 37c7bd84c777
children 1ad777637d2d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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db06a8c1bfed Lots of changes to move buildall.sh functionality into build.sh.
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1 #!/bin/sh
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2
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3 # Otherwise, building source packages wants things like /bin/bash and
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4 # running the results wants /lib/ld-uClibc.so.0, so set up some directories
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5 # and symlinks to let you easily compile source packages.
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6
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7 export HOME=/home
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8
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9 # Populate /dev
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10 mountpoint -q sys || mount -t sysfs sys sys
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78cbd428d60e Feed noatime flag to init.sh mounts.
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11 mountpoint -q dev || mount -t tmpfs -o noatime dev dev
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12 mdev -s
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13
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14 # Make sure /proc is there
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15 mountpoint -q proc || mount -t proc proc proc
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16
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17 [ -z "$CPUS" ] && export CPUS=1
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18 export PS1='($HOST:$CPUS) \w \$ '
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19
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20 # If we're running under qemu, do some more setup
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21 if [ $$ -eq 1 ]
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22 then
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23
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24 # Note that 10.0.2.2 forwards to 127.0.0.1 on the host.
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25
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26 # Setup networking for QEMU (needs /proc)
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27 ifconfig eth0 10.0.2.15
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28 route add default gw 10.0.2.2
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29
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30 # If we have no RTC, try rdate instead:
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b0aeb3446aa5 Some packages build differently as root than as a normal user, so add a "guest" account giving a non-root user option. Tweak mdev so it's vaguely useful. (Thanks to Vladimir Dronnikov for the idea.)
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31 [ "$(date +%s)" -lt 1000 ] && rdate 10.0.2.2 # or time-b.nist.gov
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33 mount -t tmpfs /tmp /tmp
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35 # If there's a /dev/hdb or /dev/sdb, mount it on home
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36
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37 [ -b /dev/hdb ] && HOMEDEV=/dev/hdb
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38 [ -b /dev/sdb ] && HOMEDEV=/dev/sdb
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39 if [ ! -z "$HOMEDEV" ]
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40 then
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41 mount -o noatime $HOMEDEV /home
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42 else
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37c7bd84c777 Updates to init.sh: only mount tmpfs on /home if / isn't writeable, and use /proc/cmdline instead of grepping dmesg to get console info.
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43 # Only mount a tmpfs if / isn't writeable.
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44 touch /.temp 2>/dev/null
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45 [ $? -ne 0 ] && mount -t tmpfs /home /home || rm /.temp
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46 fi
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47 cd /home
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48
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18fa21056b01 System Images' sbin/init.sh should mount /dev/hdc (if it exists) on /mnt, and then run /mnt/init (instead of a shell prompt) if that exists.
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49 [ -b /dev/hdc ] && MNTDEV=/dev/hdc
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50 [ -b /dev/sdc ] && MNTDEV=/dev/sdc
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51 if [ ! -z "$MNTDEV" ]
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52 then
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53 mount -o ro $MNTDEV /mnt
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54 fi
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55
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56 CONSOLE="$(sed -n 's@.* console=\(/dev/\)*\([^ ]*\).*@\2@p' /proc/cmdline)"
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58 if [ -z "$DISTCC_HOSTS" ]
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59 then
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60 echo "Not using distcc."
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61 else
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62 echo "Distcc acceleration enabled."
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63 fi
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64 echo Type exit when done.
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65
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66 HANDOFF=/bin/ash
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67 if [ -e /mnt/init ]
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68 then
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69 X=xx
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70 echo "Press any key for command line..."
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71 read -t 3 -n 1 X
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72 if [ "$X" == xx ]
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73 then
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74 echo "Running automated build."
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75 HANDOFF=/mnt/init
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76 fi
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77 fi
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78 exec /bin/oneit -c /dev/"$CONSOLE" "$HANDOFF"
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79
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80 # If we're not PID 1, it's probably a chroot.
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81 else
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82 [ ! -z "$(grep "default for QEMU" /etc/resolv.conf)" ] &&
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83 echo "nameserver 8.8.8.8" > /etc/resolv.conf
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84
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85 # If we have no RTC, try using ntp to set the clock
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86 [ "$(date +%s)" -lt 10000000 ] && ntpd -nq -p north-america.pool.ntp.org
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87
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88 # Switch to a shell with command history.
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89
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90 echo Type exit when done.
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91 /bin/ash
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92 cd /
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93 umount ./dev
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94 umount ./sys
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95 umount ./proc
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96 sync
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97 fi