Magellan Linux

Annotation of /trunk/bootstrap/mage-bootstrap.sh.in

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Revision 2180 - (hide annotations) (download)
Tue Oct 8 14:39:21 2013 UTC (11 years ago) by niro
File size: 7677 byte(s)
-mount sysfs in the chroot environment
1 niro 324 #!/bin/bash
2 niro 744 # $Header: /home/cvsd/magellan-cvs/magellan-src/bootstrap/scripts/mage-bootstrap.sh,v 1.8 2008-06-23 19:26:40 niro Exp $
3 niro 324
4     TOOLCHAIN=""
5     BASESYSTEM=""
6     PROFILE=""
7     MROOT=""
8     ABORT_AFTER_STAGE1=false
9     MY_MAGEDIR=""
10     MY_PKGDIR=""
11 niro 977 MAGEUPDATE=true
12 niro 1075 MAGEUPDATETARBALL=false
13 niro 324
14     die()
15     {
16     echo "ERROR: $@"
17     trap_exit
18     exit 1
19     }
20    
21     read_magerc()
22     {
23     local var="$1"
24     local magerc="$2"
25     local value
26    
27     # local all possible vars of a magerc file
28     # to prevent bad issues
29     local PKGDIR
30     local BUILDDIR
31     local INSTALLDB
32     local MAGEDIR
33     local MLIBDIR
34     local VIRTUALDB_DEFAULTS
35     local VIRTUALDB_FILE
36     local SOURCEDIR
37     local BINDIR
38     local SMAGESCRIPTSDIR
39     local MROOT
40     local PKGSUFFIX
41     local VERBOSE
42     local MAGEDEBUG
43     local ARCH
44     local MAGE_UNINSTALL_TIMEOUT
45     local CHOST
46     local CFLAGS
47     local CXXFLAGS
48     local SMAGE_USE_CCACHE
49     local SMAGE_USE_DISTCC
50     local MAKEOPTS
51     local DISTCC_HOSTS
52     local DISTCC_DIR
53     local DISTCC_VERBOSE
54     local DISTCC_LOG
55     local MIRRORS
56     local RSYNC
57     local SMAGE2RSYNC
58    
59     # sanity checks
60 niro 683 [ -f /etc/mage.rc.global ] && source /etc/mage.rc.global || \
61     die "get_value_from_magefile: /etc/mage.rc.global not found."
62 niro 324 [ -f ${magerc} ] && source ${magerc} || \
63     die "get_value_from_magefile: ${magerc} not found."
64     [ -z "${var}" ] && die "get_value_from_magefile: \$var not given."
65    
66     source ${magerc}
67     eval value=\$$(echo ${var})
68     echo "${value}"
69     }
70    
71     add_initrc()
72     {
73     local var="$1"
74    
75     # sanity checks
76     [ -z "${MROOT}" ] && die "\$MROOT not given."
77     echo "${var}" >> ${MROOT}/.installrc || die "add_initrc() adding \$var"
78     }
79    
80     enter_chroot()
81     {
82     mount -t proc proc ${MROOT}/proc || die "mount proc"
83 niro 2180 mount -t sysfs sysfs ${MROOT}/sys || die "mount sys"
84 niro 324 mount -o bind /dev ${MROOT}/dev || die "mount dev"
85    
86     chroot ${MROOT} /bin/bash -i /.installrc || die "chr00ting"
87    
88 niro 2180 umount ${MROOT}/dev ${MROOT}/sys ${MROOT}/proc || die "mount proc/sys/dev"
89 niro 324
90     [ -f ${MROOT}/.installrc ] && rm ${MROOT}/.installrc
91     }
92    
93     is_loc_mounted()
94     {
95     local filesys
96     local i
97     filesys=$1
98    
99     i="$(cat /proc/mounts | grep " ${filesys} " | cut -d ' ' -f2)"
100     [[ ${i} != ${filesys} ]] && return 1
101    
102     return 0
103     }
104    
105     trap_exit()
106     {
107     is_loc_mounted "${MROOT}/dev" && umount ${MROOT}/dev
108     is_loc_mounted "${MROOT}/proc" && umount ${MROOT}/proc
109 niro 2180 is_loc_mounted "${MROOT}/sys" && umount ${MROOT}/sys
110 niro 324 is_loc_mounted "${MY_MAGEDIR}" && umount ${MY_MAGEDIR}
111     is_loc_mounted "${MY_PKGDIR}" && umount ${MY_PKGDIR}
112     echo "bootstrap aborted"
113     exit 1
114     }
115    
116     print_usage()
117     {
118 niro 340 echo "mage-bootstrap, version @VERSION@"
119 niro 324 echo "Usage: $(basename $0) --opt arg ..."
120     echo
121     echo "Options:"
122 niro 1075 echo " --profile, -p -- select a profile (needed)"
123     echo " --root, -r -- location to new root (needed)"
124     echo " --magerc, -m -- location of mage.rc (needed)"
125 niro 324 echo
126 niro 1075 echo " --toolchain, -t -- select other toolchain than from profile"
127     echo " --basesystem, -b -- select other basesystem than from profile"
128     echo " --stage1, -s1 -- if set, abort after stage1 (toolchain)"
129 niro 1485 echo " --update-tarball, -ut -- update via tarball not rsync"
130 niro 1075 echo " --no-update, -u -- do not update the mage tree"
131     echo " --help, -h -- prints this help"
132 niro 324 echo
133    
134     exit 1
135     }
136    
137     # set some proper traps
138     trap "trap_exit" SIGINT SIGQUIT
139    
140     # show usage if no opts given
141     [[ -z $* ]] && print_usage
142    
143     # very basic getops
144     for i in $*
145     do
146     case $1 in
147     --toolchain|-t) shift; TOOLCHAIN="$1" ;;
148     --basesystem|-b) shift; BASESYSTEM="$1" ;;
149     --profile|-p) shift; PROFILE="$1" ;;
150     --root|-r) shift; MROOT="$1" ;;
151     --stage1|-s1) ABORT_AFTER_STAGE1=true ;;
152     --magerc|-m) shift; MAGERC="$1" ;;
153 niro 1486 --update-tarball|-ut) MAGEUPDATETARBALL=true ;;
154     --no-update|-u) MAGEUPDATE=false ;;
155 niro 324 --help|-h) print_usage ;;
156     '') shift;;
157     *) echo "Unkown option '$1', use --help or -h to get more info."; exit 1 ;;
158     esac
159     shift
160     done
161    
162     # sanity checks; abort if not given
163     [ -z "${MROOT}" ] && die "\$MROOT not given."
164     [ -z "${MAGERC}" ] && die "\$MAGERC not given."
165     [ -z "${PROFILE}" ] && die "\$PROFILE not given."
166    
167     # they may be empty, they are included in the profile
168     [ -z "${TOOLCHAIN}" ] && echo "\$TOOLCHAIN not given, using toolchain from profile."
169     [[ ${ABORT_AFTER_STAGE1} = false ]] && [ -z "${BASESYSTEM}" ] \
170     && echo "\$BASESYSTEM not given, using basesystem from profile."
171    
172     # check needed global commands, dirs and files
173     [ ! -d /usr/mage ] && die "/usr/mage does not exists"
174     [ ! -x /sbin/mage ] && die "'/sbin/mage' not found. Please install '>= app-mage/mage-0.4' first."
175     [ ! -x /bin/mount ] && die "'/bin/mount' not found. Please install '>= sys-apps/util-linux' first."
176     [ ! -f ${MAGERC} ] && die "Please setup your mage.rc first."
177     [ ! -f /etc/resolv.conf ] && die "/etc/resolv.conf missing. Please setup your networking first."
178    
179     # install fake-root if not exist
180     [ ! -d ${MROOT} ] && { install -d ${MROOT} || die "create fakedir"; }
181    
182     # create a fake dirs and mount them to / of the host system
183     MY_MAGEDIR="$(read_magerc MAGEDIR ${MAGERC})"
184     MY_PKGDIR="$(read_magerc PKGDIR ${MAGERC})"
185    
186     install -d ${MROOT}/${MY_MAGEDIR} || die "create magedir"
187     install -d ${MROOT}/${MY_PKGDIR} || die "create pkgdir"
188    
189     mount -o bind ${MROOT}/${MY_MAGEDIR} ${MY_MAGEDIR} || die "mount magedir"
190     mount -o bind ${MROOT}/${MY_PKGDIR} ${MY_PKGDIR} || die "mount pkgdir"
191    
192     # link to the right profile
193     ln -snf ${MY_MAGEDIR}/profiles/${PROFILE} /etc/mage-profile || die "link profile"
194    
195     # update mage tree
196 niro 977 if [[ ${MAGEUPDATE} = true ]]
197     then
198 niro 1075 if [[ ${MAGEUPDATETARBALL} = true ]]
199     then
200     MAGERC="${MAGERC}" mage update-tarball || die "update mage-tree"
201     else
202     MAGERC="${MAGERC}" mage update || die "update mage-tree"
203     fi
204 niro 977 fi
205 niro 324
206     # now get the toolchain and the basesystem layout file
207     # [ -z "${TOOLCHAIN}" ] && TOOLCHAIN="toolchain.defaults"
208     # [ -z "${BASESYSTEM}" ] && BASESYSTEM="basesystem.defaults"
209     # # read them
210     # TOOLCHAIN="$(< /etc/mage-profile/${TOOLCHAIN})"
211     # BASESYSTEM="$(< /etc/mage-profile/${BASESYSTEM})"
212    
213 niro 422 # this way toolchain and basesystem can be packages;
214 niro 324 # only if nothing set the layout files from the profile will be taken
215 niro 683 [ -z "${TOOLCHAIN}" ] && TOOLCHAIN="$(< ${MY_MAGEDIR}/profiles/${PROFILE}/toolchain.defaults)"
216     [ -z "${BASESYSTEM}" ] && BASESYSTEM="$(< ${MY_MAGEDIR}/profiles/${PROFILE}/basesystem.defaults)"
217 niro 324
218     # install toolchain
219 niro 422 CONFIG_PROTECT="-*" MROOT="${MROOT}" MAGERC="${MAGERC}" mage install ${TOOLCHAIN} || die "toolchain install"
220 niro 324
221     # umount dirs, they are not needed anymore
222     umount ${MY_MAGEDIR} ${MY_PKGDIR} || die "umount mage/pkgdir"
223    
224     # copy some needed files to the fake-root
225     install -m 0644 ${MAGERC} ${MROOT}/etc/mage.rc || die "install mage.rc"
226     install -m 0644 /etc/resolv.conf ${MROOT}/etc/resolv.conf || die "install resolv.conf"
227    
228     # abort if wanted
229     if [[ ${ABORT_AFTER_STAGE1} = true ]]
230     then
231     echo "Stage1 complete; user requested to abort after this step."
232     echo "Exiting ..."
233     exit 0
234     fi
235    
236     # now create an initrc for the installation of the basesystem
237     :> ${MROOT}/.installrc
238 niro 422 add_initrc "export MAGE_BOOTSTRAP=true"
239 niro 324 add_initrc "export HOME=/root"
240     add_initrc "export PATH=/bin:/usr/bin:/sbin:/usr/sbin"
241     add_initrc "export BASESYSTEM=${BASESYSTEM}"
242     add_initrc "export PROFILE=${PROFILE}"
243     add_initrc "export CONFIG_PROTECT=-*"
244     add_initrc "export MY_MAGEDIR=${MY_MAGEDIR}"
245    
246     # add proxies if defined
247     [[ -n ${http_proxy} ]] && add_initrc "export http_proxy=${http_proxy}"
248     [[ -n ${ftp_proxy} ]] && add_initrc "export ftp_proxy=${ftp_proxy}"
249     [[ -n ${no_proxy} ]] && add_initrc "export no_proxy=${no_proxy}"
250     [[ -n ${RSYNC_PROXY} ]] && add_initrc "export RSYNC_PROXY=${RSYNC_PROXY}"
251    
252     # install comands
253     add_initrc "ln -snf ${MY_MAGEDIR}/profiles/${PROFILE} /etc/mage-profile"
254     add_initrc "mage install ${BASESYSTEM}"
255     add_initrc "mage clean"
256    
257     # chroot the toolchain
258     enter_chroot
259    
260     echo "System bootstrap to '${MROOT}' finished."
261     exit 0

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