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Viewing changes to debian/initramfs/hook

  • Committer: Package Import Robot
  • Author(s): Surbhi Palande
  • Date: 2010-09-13 18:59:03 UTC
  • Revision ID: package-import@ubuntu.com-20100913185903-13ww08c70g4gna90
Tags: 2.6.7.1-1ubuntu16
https://launchpad.net/bugs/617725
* debian/initramfs/hook: Added following code (invoked on update-initramfs)
  (LP: #617725):
  - create a mdadm.conf if it is not found in /etc and copy it in initramfs
  - update an existing mdadm.conf in the initramfs if it does'nt include
    a definition of any array
  - warn the user if the definition of an active array is not found in the
    initramfs/etc/mdadm.conf

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Lines of Context:
debian/initramfs/hook
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    ;;
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esac
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is_true()
 
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{
 
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        case "${1:-}" in
 
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                [Yy]es|[Yy]|1|[Tt]rue|[Tt]) return 0;;
 
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                *) return 1;;
 
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        esac    
 
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}
 
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write()
 
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{
 
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        local PREFIX; PREFIX=$1; shift
 
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        echo "${PREFIX}: mdadm: $@" >&2
 
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}
 
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info()
 
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{
 
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        is_true ${VERBOSE:-false} && write I "$@" || :
 
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}
 
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warn()
 
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{
 
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        write W "$@"
 
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}
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. /usr/share/initramfs-tools/hook-functions
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# copy the mdadm configuration
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CONFIG=/etc/mdadm/mdadm.conf
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ALTCONFIG=/etc/mdadm.conf
 
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DESTMDADMCONF=$DESTDIR/etc/mdadm/mdadm.conf
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[ ! -f $CONFIG ] && [ -f $ALTCONFIG ] && CONFIG=$ALTCONFIG || :
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mkdir -p ${DESTDIR}/etc/mdadm
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cp -p $CONFIG ${DESTDIR}/etc/mdadm
 
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if [ ! -f $CONFIG ]; then
 
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        # there is no configuration file, so let's create one
 
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        if /usr/share/mdadm/mkconf generate $CONFIG; then
 
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                # all is well
 
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                cp -p $CONFIG $DESTMDADMCONF
 
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                info "auto-generated the mdadm.conf configuration file."
 
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        else
 
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                # we failed to auto-generate, so let the emergency procedure take over
 
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                warn "failed to auto-generate the mdadm.conf file."
 
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                warn "please read /usr/share/doc/mdadm/README.upgrading-2.5.3.gz ."
 
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        fi
 
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else
 
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        cp -p $CONFIG ${DESTDIR}/etc/mdadm
 
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        if ! grep -q '^ARRAY' $CONFIG; then
 
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                tmpfile="${DESTMDADMCONF}.tmp"
 
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                warn "$CONFIG defines no arrays."
 
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                if /usr/share/mdadm/mkconf > $tmpfile; then
 
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                        cp -p $tmpfile $DESTMDADMCONF
 
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                else
 
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                        warn "failed to auto-generate temporary mdadm.conf file."
 
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                fi
 
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        else
 
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                # make sure the configuration file knows about all running devices
 
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                /sbin/mdadm --detail --scan | while read array device params; do
 
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                        uuid=${params#*UUID=}; uuid=${uuid%% *}
 
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                        if ! grep -q "UUID=$uuid" $DESTMDADMCONF; then
 
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                                warn "the array $device with UUID $uuid"
 
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                                warn "is currently active, but it is not listed in mdadm.conf. if"
 
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                                warn "it is needed for boot, then YOUR SYSTEM IS NOW UNBOOTABLE!"
 
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                                warn "please inspect the output of /usr/share/mdadm/mkconf, compare"
 
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                                warn "it to $CONFIG, and make the necessary changes."
 
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                        fi
 
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                done
 
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        fi
 
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fi
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# load raid modules in the initramfs
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for module in linear multipath raid0 raid1 raid456 raid5 raid6 raid10; do