4bbc5bd8e0
shell script is the back end logic necessary for an installer. It contains both query routines to allow a front-end installer to present reasonable choices to the user and also action routines which allow the front end installer to put a FreeBSD distribution onto a disk. It supports installing onto the usual suspects, as well as advanced features like Mirroring, ZFS, Encryprion and GPT labels. While this is only the back-end of the installer, it can do unattended scripted installations. In PC-BSD's world view, all installations are scripted and all the front-end does is write the script. As such, it is useful in its own right. This has been extensively tested over the past several releases of PC-BSD. However, differences between that environment and FreeBSD suggest there will be a period of shake-out while those differences are discovered and corrected. A text-based front-end is in the works. For the GUI-based front-end, you can use the PC-BSD distribution. Kris' BSDcan paper on pc-sysinstall is linked off his talk on the BSDcan site: http://www.bsdcan.org/2010/schedule/events/173.en.html The man page is written by Josh Paetzel, and I wrote the Makefiles for the FreeBSD integration. Kris wrote the rest. This represents version r7010 in the PC-BSD repo. http://svn.pcbsd.org/pcbsd/current/pc-sysinstall Submitted by: kris@ Sponsored by: iX Systems
642 lines
19 KiB
Bash
Executable File
642 lines
19 KiB
Bash
Executable File
#!/bin/sh
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#-
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# Copyright (c) 2010 iX Systems, Inc. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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# Functions related to disk operations using bsdlabel
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# Check if we are are provided a geli password on the nextline of the config
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check_for_enc_pass()
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{
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CURLINE="${1}"
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get_next_cfg_line "${CFGF}" "${CURLINE}"
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echo ${VAL} | grep "^encpass=" >/dev/null 2>/dev/null
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if [ "$?" = "0" ] ; then
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# Found a password, return it
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get_value_from_string "${VAL}"
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return
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fi
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VAL="" ; export VAL
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return
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};
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# On check on the disk-label line if we have any extra vars for this device
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# Only enabled for ZFS devices now, may add other xtra options in future for other FS's
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get_fs_line_xvars()
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{
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ACTIVEDEV="${1}"
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LINE="${2}"
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echo $LINE | grep ' (' >/dev/null 2>/dev/null
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if [ "$?" = "0" ] ; then
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# See if we are looking for ZFS specific options
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echo $LINE | grep '^ZFS' >/dev/null 2>/dev/null
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if [ "$?" = "0" ] ; then
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ZTYPE="NONE"
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ZFSVARS="`echo $LINE | cut -d '(' -f 2- | cut -d ')' -f 1`"
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# Check if we are doing raidz setup
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echo $ZFSVARS | grep "^raidz:" >/dev/null 2>/dev/null
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if [ "$?" = "0" ] ; then
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ZTYPE="raidz"
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ZFSVARS="`echo $ZFSVARS | sed 's|raidz: ||g' | sed 's|raidz:||g'`"
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fi
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echo $ZFSVARS | grep "^mirror:" >/dev/null 2>/dev/null
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if [ "$?" = "0" ] ; then
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ZTYPE="mirror"
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ZFSVARS="`echo $ZFSVARS | sed 's|mirror: ||g' | sed 's|mirror:||g'`"
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fi
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# Return the ZFS options
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if [ "${ZTYPE}" = "NONE" ] ; then
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VAR="${ACTIVEDEV} ${ZFSVARS}"
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else
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VAR="${ZTYPE} ${ACTIVEDEV} ${ZFSVARS}"
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fi
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export VAR
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return
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fi # End of ZFS block
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fi # End of xtra-options block
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# If we got here, set VAR to empty and export
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VAR=""
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export VAR
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return
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};
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# Init each zfs mirror disk with a boot sector so we can failover
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setup_zfs_mirror_parts() {
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_nZFS=""
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# Using mirroring, setup boot partitions on each disk
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_mirrline="`echo ${1} | sed 's|mirror ||g'`"
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for _zvars in $_mirrline
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do
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echo "Looping through _zvars: $_zvars" >>${LOGOUT}
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echo "$_zvars" | grep "${2}" >/dev/null 2>/dev/null
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if [ "$?" = "0" ] ; then continue ; fi
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if [ -z "$_zvars" ] ; then continue ; fi
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is_disk "$_zvars" >/dev/null 2>/dev/null
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if [ "$?" = "0" ] ; then
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echo "Setting up ZFS mirror disk $_zvars" >>${LOGOUT}
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init_gpt_full_disk "$_zvars" >/dev/null 2>/dev/null
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rc_halt "gpart bootcode -p /boot/gptzfsboot -i 1 ${_zvars}" >/dev/null 2>/dev/null
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rc_halt "gpart add -t freebsd-zfs ${_zvars}" >/dev/null 2>/dev/null
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_nZFS="$_nZFS ${_zvars}p2"
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else
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_nZFS="$_nZFS ${_zvars}"
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fi
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done
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echo "mirror $2 `echo $_nZFS | tr -s ' '`"
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} ;
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# Function which creates a unique label name for the specified mount
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gen_glabel_name()
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{
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MOUNT="$1"
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TYPE="$2"
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NUM="0"
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MAXNUM="20"
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# Check if we are doing /, and rename it
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if [ "$MOUNT" = "/" ]
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then
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NAME="rootfs"
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else
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# If doing a swap partition, also rename it
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if [ "${TYPE}" = "SWAP" ]
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then
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NAME="swap"
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else
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NAME="`echo $MOUNT | sed 's|/||g' | sed 's| ||g'`"
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fi
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fi
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# Loop through and break when we find our first available label
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while
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Z=1
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do
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glabel status | grep "${NAME}${NUM}" >/dev/null 2>/dev/null
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if [ "$?" != "0" ]
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then
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break
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else
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NUM="`expr ${NUM} + 1`"
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fi
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if [ $NUM -gt $MAXNUM ]
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then
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exit_err "Cannot allocate additional glabel name for $NAME"
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break
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fi
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done
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VAL="${NAME}${NUM}"
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export VAL
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};
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# Function to setup / stamp a legacy MBR bsdlabel
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setup_mbr_partitions()
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{
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DISKTAG="$1"
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WRKSLICE="$2"
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FOUNDPARTS="1"
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# Lets setup the BSDLABEL
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BSDLABEL="${TMPDIR}/bsdLabel-${WRKSLICE}"
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export BSDLABEL
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rm $BSDLABEL >/dev/null 2>/dev/null
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echo "# /dev/${WRKSLICE}" >>$BSDLABEL
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echo "8 partitions:" >>$BSDLABEL
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echo "# size offset fstype bsize bps/cpg" >>$BSDLABEL
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PARTLETTER="a"
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# Lets read in the config file now and populate this
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while read line
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do
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# Check for data on this slice
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echo $line | grep "^${DISKTAG}-part=" >/dev/null 2>/dev/null
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if [ "$?" = "0" ]
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then
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# Found a slice- entry, lets get the slice info
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get_value_from_string "${line}"
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STRING="$VAL"
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FOUNDPARTS="0"
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# We need to split up the string now, and pick out the variables
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FS=`echo $STRING | tr -s '\t' ' ' | cut -d ' ' -f 1`
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SIZE=`echo $STRING | tr -s '\t' ' ' | cut -d ' ' -f 2`
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MNT=`echo $STRING | tr -s '\t' ' ' | cut -d ' ' -f 3`
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# Check if we have a .eli extension on this FS
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echo ${FS} | grep ".eli" >/dev/null 2>/dev/null
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if [ "$?" = "0" ]
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then
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FS="`echo ${FS} | cut -d '.' -f 1`"
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ENC="ON"
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check_for_enc_pass "${line}"
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if [ "${VAL}" != "" ] ; then
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# We have a user supplied password, save it for later
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ENCPASS="${VAL}"
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fi
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else
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ENC="OFF"
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fi
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# Check if the user tried to setup / as an encrypted partition
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check_for_mount "${MNT}" "/"
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if [ "${?}" = "0" -a "${ENC}" = "ON" ]
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then
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USINGENCROOT="0" ; export USINGENCROOT
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fi
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# Now check that these values are sane
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case $FS in
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UFS|UFS+S|UFS+J|ZFS|SWAP) ;;
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*) exit_err "ERROR: Invalid file system specified on $line" ;;
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esac
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# Check that we have a valid size number
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expr $SIZE + 1 >/dev/null 2>/dev/null
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if [ "$?" != "0" ]; then
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exit_err "ERROR: The size specified on $line is invalid"
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fi
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# Check that the mount-point starts with /
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echo "$MNT" | grep -e "^/" -e "^none" >/dev/null 2>/dev/null
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if [ "$?" != "0" ]; then
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exit_err "ERROR: The mount-point specified on $line is invalid"
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fi
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if [ "$SIZE" = "0" ]
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then
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SOUT="*"
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else
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SOUT="${SIZE}M"
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fi
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# OK, we passed all tests, now lets put these values into a config
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# If the part
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if [ "${PARTLETTER}" = "a" ]
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then
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if [ "$FS" = "SWAP" ]
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then
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echo "a: ${SOUT} * swap 0 0" >>${BSDLABEL}
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else
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echo "a: ${SOUT} 0 4.2BSD 0 0" >>${BSDLABEL}
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fi
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# Check if we found a valid root partition
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check_for_mount "${MNT}" "/"
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if [ "$?" = "0" ] ; then
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FOUNDROOT="0" ; export FOUNDROOT
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fi
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# Check if we have a "/boot" instead
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check_for_mount "${MNT}" "/boot"
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if [ "${?}" = "0" ] ; then
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USINGBOOTPART="0" ; export USINGBOOTPART
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if [ "${FS}" != "UFS" -a "${FS}" != "UFS+S" -a "${FS}" != "UFS+J" ]
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then
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exit_err "/boot partition must be formatted with UFS"
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fi
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fi
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else
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# Done with the a: partitions
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# Check if we found a valid root partition not on a:
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check_for_mount "${MNT}" "/"
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if [ "${?}" = "0" ] ; then
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FOUNDROOT="1" ; export FOUNDROOT
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fi
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# Check if we have a /boot partition, and fail since its not first
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check_for_mount "${MNT}" "/boot"
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if [ "${?}" = "0" ] ; then
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exit_err "/boot partition must be first partition"
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fi
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if [ "$FS" = "SWAP" ]
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then
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echo "${PARTLETTER}: ${SOUT} * swap" >>${BSDLABEL}
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else
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echo "${PARTLETTER}: ${SOUT} * 4.2BSD" >>${BSDLABEL}
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fi
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fi
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# Generate a unique label name for this mount
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gen_glabel_name "${MNT}" "${FS}"
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PLABEL="${VAL}"
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# Get any extra options for this fs / line
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get_fs_line_xvars "${WRKSLICE}${PARTLETTER}" "${STRING}"
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XTRAOPTS="${VAR}"
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# Check if using zfs mirror
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echo ${XTRAOPTS} | grep "mirror" >/dev/null 2>/dev/null
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if [ "$?" = "0" ] ; then
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XTRAOPTS=$(setup_zfs_mirror_parts "$XTRAOPTS" "${WRKSLICE}${PARTLETTER}")
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fi
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# Save this data to our partition config dir
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echo "${FS}:${MNT}:${ENC}:${PLABEL}:MBR:${XTRAOPTS}" >${PARTDIR}/${WRKSLICE}${PARTLETTER}
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# If we have a enc password, save it as well
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if [ ! -z "${ENCPASS}" ] ; then
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echo "${ENCPASS}" >${PARTDIR}-enc/${WRKSLICE}${PARTLETTER}-encpass
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fi
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# This partition letter is used, get the next one
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case ${PARTLETTER} in
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a) PARTLETTER="b" ;;
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b) # When we hit b, add the special c: setup for bsdlabel
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echo "c: * * unused" >>${BSDLABEL}
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PARTLETTER="d" ;;
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d) PARTLETTER="e" ;;
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e) PARTLETTER="f" ;;
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f) PARTLETTER="g" ;;
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g) PARTLETTER="h" ;;
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h) PARTLETTER="ERR" ;;
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*) exit_err "ERROR: bsdlabel only supports up to letter h for partitions." ;;
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esac
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fi # End of subsection locating a slice in config
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echo $line | grep "^commitDiskLabel" >/dev/null 2>/dev/null
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if [ "$?" = "0" -a "${FOUNDPARTS}" = "0" ]
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then
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# Found our flag to commit this label setup, check that we found at least 1 partition and do it
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if [ "${PARTLETTER}" != "a" ]
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then
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# Check if we only had 1 partition, and make sure we add "c:" section to label
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if [ "${PARTLETTER}" = "b" ]
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then
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echo "c: * * unused" >>${BSDLABEL}
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fi
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echo "bsdlabel -R -B /dev/${WRKSLICE} ${BSDLABEL}"
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bsdlabel -R -B ${WRKSLICE} ${BSDLABEL}
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break
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else
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exit_err "ERROR: commitDiskLabel was called without any partition entries for it!"
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fi
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fi
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done <${CFGF}
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};
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# Function to setup partitions using gpt
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setup_gpt_partitions()
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{
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DISKTAG="$1"
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DISK="$2"
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FOUNDPARTS="1"
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# Lets read in the config file now and setup our GPT partitions
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CURPART="2"
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while read line
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do
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# Check for data on this slice
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echo $line | grep "^${DISKTAG}-part=" >/dev/null 2>/dev/null
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if [ "$?" = "0" ]
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then
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FOUNDPARTS="0"
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# Found a slice- entry, lets get the slice info
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get_value_from_string "${line}"
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STRING="$VAL"
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# We need to split up the string now, and pick out the variables
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FS=`echo $STRING | tr -s '\t' ' ' | cut -d ' ' -f 1`
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SIZE=`echo $STRING | tr -s '\t' ' ' | cut -d ' ' -f 2`
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MNT=`echo $STRING | tr -s '\t' ' ' | cut -d ' ' -f 3`
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# Check if we have a .eli extension on this FS
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echo ${FS} | grep ".eli" >/dev/null 2>/dev/null
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if [ "$?" = "0" ]
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then
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FS="`echo ${FS} | cut -d '.' -f 1`"
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ENC="ON"
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check_for_enc_pass "${line}"
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if [ "${VAL}" != "" ] ; then
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# We have a user supplied password, save it for later
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ENCPASS="${VAL}"
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fi
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else
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ENC="OFF"
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fi
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# Check if the user tried to setup / as an encrypted partition
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check_for_mount "${MNT}" "/"
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if [ "${?}" = "0" -a "${ENC}" = "ON" ]
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then
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USINGENCROOT="0" ; export USINGENCROOT
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fi
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# Now check that these values are sane
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case $FS in
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UFS|UFS+S|UFS+J|ZFS|SWAP) ;;
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*) exit_err "ERROR: Invalid file system specified on $line" ;;
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esac
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# Check that we have a valid size number
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expr $SIZE + 1 >/dev/null 2>/dev/null
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if [ "$?" != "0" ]; then
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exit_err "ERROR: The size specified on $line is invalid"
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fi
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# Check that the mount-point starts with /
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echo "$MNT" | grep -e "^/" -e "^none" >/dev/null 2>/dev/null
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if [ "$?" != "0" ]; then
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exit_err "ERROR: The mount-point specified on $line is invalid"
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fi
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if [ "$SIZE" = "0" ]
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then
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SOUT=""
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else
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SOUT="-s ${SIZE}M"
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fi
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# Check if we found a valid root partition
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check_for_mount "${MNT}" "/"
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if [ "${?}" = "0" ] ; then
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if [ "${CURPART}" = "2" ] ; then
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FOUNDROOT="0" ; export FOUNDROOT
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else
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FOUNDROOT="1" ; export FOUNDROOT
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fi
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fi
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check_for_mount "${MNT}" "/boot"
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if [ "${?}" = "0" ] ; then
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if [ "${CURPART}" = "2" ] ; then
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USINGBOOTPART="0" ; export USINGBOOTPART
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if [ "${FS}" != "UFS" -a "${FS}" != "UFS+S" -a "${FS}" != "UFS+J" ]
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then
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exit_err "/boot partition must be formatted with UFS"
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fi
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else
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exit_err "/boot partition must be first partition"
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fi
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fi
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# Generate a unique label name for this mount
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gen_glabel_name "${MNT}" "${FS}"
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PLABEL="${VAL}"
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# Get any extra options for this fs / line
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get_fs_line_xvars "${DISK}p${CURPART}" "${STRING}"
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XTRAOPTS="${VAR}"
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# Check if using zfs mirror
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echo ${XTRAOPTS} | grep "mirror" >/dev/null 2>/dev/null
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if [ "$?" = "0" ] ; then
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XTRAOPTS=$(setup_zfs_mirror_parts "$XTRAOPTS" "${DISK}p${CURPART}")
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fi
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# Figure out the gpart type to use
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case ${FS} in
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ZFS) PARTYPE="freebsd-zfs" ;;
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SWAP) PARTYPE="freebsd-swap" ;;
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*) PARTYPE="freebsd-ufs" ;;
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esac
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# Create the partition
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rc_halt "gpart add ${SOUT} -t ${PARTYPE} ${DISK}"
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# Check if this is a root / boot partition, and stamp the right loader
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for TESTMNT in `echo ${MNT} | sed 's|,| |g'`
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do
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if [ "${TESTMNT}" = "/" -a -z "${BOOTTYPE}" ] ; then
|
|
BOOTTYPE="${PARTYPE}"
|
|
fi
|
|
if [ "${TESTMNT}" = "/boot" ] ; then
|
|
BOOTTYPE="${PARTYPE}"
|
|
fi
|
|
done
|
|
|
|
# Save this data to our partition config dir
|
|
echo "${FS}:${MNT}:${ENC}:${PLABEL}:GPT:${XTRAOPTS}" >${PARTDIR}/${DISK}p${CURPART}
|
|
|
|
# Clear out any headers
|
|
sleep 2
|
|
dd if=/dev/zero of=${DISK}p${CURPART} count=2048 >/dev/null 2>/dev/null
|
|
|
|
# If we have a enc password, save it as well
|
|
if [ ! -z "${ENCPASS}" ] ; then
|
|
echo "${ENCPASS}" >${PARTDIR}-enc/${DISK}p${CURPART}-encpass
|
|
fi
|
|
|
|
# Increment our parts counter
|
|
CURPART="`expr ${CURPART} + 1`"
|
|
|
|
fi # End of subsection locating a slice in config
|
|
|
|
echo $line | grep "^commitDiskLabel" >/dev/null 2>/dev/null
|
|
if [ "$?" = "0" -a "${FOUNDPARTS}" = "0" ]
|
|
then
|
|
|
|
# If this is the boot disk, stamp the right gptboot
|
|
if [ ! -z "${BOOTTYPE}" ] ; then
|
|
case ${BOOTTYPE} in
|
|
freebsd-ufs) rc_halt "gpart bootcode -p /boot/gptboot -i 1 ${DISK}" ;;
|
|
freebsd-zfs) rc_halt "gpart bootcode -p /boot/gptzfsboot -i 1 ${DISK}" ;;
|
|
esac
|
|
fi
|
|
|
|
|
|
# Found our flag to commit this label setup, check that we found at least 1 partition
|
|
if [ "${CURPART}" = "2" ] ; then
|
|
exit_err "ERROR: commitDiskLabel was called without any partition entries for it!"
|
|
fi
|
|
|
|
break
|
|
fi
|
|
done <${CFGF}
|
|
};
|
|
|
|
# Reads through the config and sets up a BSDLabel for the given slice
|
|
populate_disk_label()
|
|
{
|
|
if [ -z "${1}" ]
|
|
then
|
|
exit_err "ERROR: populate_disk_label() called without argument!"
|
|
fi
|
|
|
|
# Set some vars from the given working slice
|
|
disk="`echo $1 | cut -d '-' -f 1`"
|
|
slicenum="`echo $1 | cut -d '-' -f 2`"
|
|
type="`echo $1 | cut -d '-' -f 3`"
|
|
|
|
# Set WRKSLICE based upon format we are using
|
|
if [ "$type" = "mbr" ] ; then
|
|
wrkslice="${disk}s${slicenum}"
|
|
fi
|
|
if [ "$type" = "gpt" ] ; then
|
|
wrkslice="${disk}p${slicenum}"
|
|
fi
|
|
|
|
if [ -e "${SLICECFGDIR}/${wrkslice}" ]
|
|
then
|
|
disktag="`cat ${SLICECFGDIR}/${wrkslice}`"
|
|
else
|
|
exit_err "ERROR: Missing SLICETAG data. This shouldn't happen - please let the developers know"
|
|
fi
|
|
|
|
# Using Traditional MBR for dual-booting
|
|
if [ "$type" = "mbr" ] ; then
|
|
setup_mbr_partitions "${disktag}" "${wrkslice}"
|
|
fi
|
|
|
|
# Using entire disk mode, use GPT for this
|
|
if [ "$type" = "gpt" ] ; then
|
|
setup_gpt_partitions "${disktag}" "${disk}"
|
|
fi
|
|
|
|
};
|
|
|
|
# Function which reads in the disk slice config, and performs it
|
|
setup_disk_label()
|
|
{
|
|
# We are ready to start setting up the label, lets read the config and do the actions
|
|
|
|
# First confirm that we have a valid WORKINGSLICES
|
|
if [ -z "${WORKINGSLICES}" ]; then
|
|
exit_err "ERROR: No slices were setup! Please report this to the maintainers"
|
|
fi
|
|
|
|
# Check that the slices we have did indeed get setup and gpart worked
|
|
for i in $WORKINGSLICES
|
|
do
|
|
disk="`echo $i | cut -d '-' -f 1`"
|
|
pnum="`echo $i | cut -d '-' -f 2`"
|
|
type="`echo $i | cut -d '-' -f 3`"
|
|
if [ "$type" = "mbr" -a ! -e "/dev/${disk}s${pnum}" ] ; then
|
|
exit_err "ERROR: The partition ${i} doesn't exist! gpart failure!"
|
|
fi
|
|
if [ "$type" = "gpt" -a ! -e "/dev/${disk}p${pnum}" ] ; then
|
|
exit_err "ERROR: The partition ${i} doesn't exist! gpart failure!"
|
|
fi
|
|
done
|
|
|
|
# Setup some files which we'll be referring to
|
|
LABELLIST="${TMPDIR}/workingLabels"
|
|
export LABELLIST
|
|
rm $LABELLIST >/dev/null 2>/dev/null
|
|
|
|
# Set our flag to determine if we've got a valid root partition in this setup
|
|
FOUNDROOT="-1"
|
|
export FOUNDROOT
|
|
|
|
# Check if we are using a /boot partition
|
|
USINGBOOTPART="1"
|
|
export USINGBOOTPART
|
|
|
|
# Set encryption on root check
|
|
USINGENCROOT="1" ; export USINGENCROOT
|
|
|
|
# Make the tmp directory where we'll store FS info & mount-points
|
|
rm -rf ${PARTDIR} >/dev/null 2>/dev/null
|
|
mkdir -p ${PARTDIR} >/dev/null 2>/dev/null
|
|
rm -rf ${PARTDIR}-enc >/dev/null 2>/dev/null
|
|
mkdir -p ${PARTDIR}-enc >/dev/null 2>/dev/null
|
|
|
|
for i in $WORKINGSLICES
|
|
do
|
|
populate_disk_label "${i}"
|
|
done
|
|
|
|
# Check if we made a root partition
|
|
if [ "$FOUNDROOT" = "-1" ]
|
|
then
|
|
exit_err "ERROR: No root (/) partition specified!!"
|
|
fi
|
|
|
|
# Check if we made a root partition
|
|
if [ "$FOUNDROOT" = "1" -a "${USINGBOOTPART}" != "0" ]
|
|
then
|
|
exit_err "ERROR: (/) partition isn't first partition on disk!"
|
|
fi
|
|
|
|
if [ "${USINGENCROOT}" = "0" -a "${USINGBOOTPART}" != "0" ]
|
|
then
|
|
exit_err "ERROR: Can't encrypt (/) with no (/boot) partition!"
|
|
fi
|
|
};
|
|
|