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rt j d d t j d <n d S( s setup the environment based on the config and options
It will use
config("Aufs","Enabled") - to show if its enabled
and
config("Aufs","RWDir") - for the writable overlay dir
s aufsOptionsAndEnvironmentSetup()s& enabling full overlay from commandlinet Aufst Enabledt Truet EnableFullOverlayt prefixs upgrade-rw-t RWDirs using '%s' as aufs_rw_dirt RELEASE_UPGRADE_AUFS_RWDIRs upgrade-chroot-i t ChrootDirs using '%s' as aufs chroot dirs( enabling aufs full overlay (from config)t 1t% RELEASE_UPGRADE_USE_AUFS_FULL_OVERLAYt EnableChrootOverlays enabling aufs chroot overlayt RELEASE_UPGRADE_USE_AUFS_CHROOTt EnableChrootRsyncs, enable aufs chroot rsync back to real systemt! RELEASE_UPGRADE_RSYNC_AUFS_CHROOTN( t loggingt debugt useAufst sett tempfilet mkdtempt getWithDefaultt ost environt chmodt False( t optionst configt tmprwt aufs_rw_dirt tmpchroott aufs_chroot_dir( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt aufsOptionsAndEnvironmentSetup s2
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S( s4 helper that bind mounts a given dir to a new place s --rbinds --bindt mounts cmd: %si s& Failed to bind mount from '%s' to '%s'( R t patht existst makedirsR R t
subprocesst callt errorR R ( t from_dirt to_dirt rbindt bindt cmdt res( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt
_bindMount/ s t /c C s t j j | | s* t j | | n t j j | | sT t j | | n t } | r d d d d d | | | f d | | g } n- d d d d d | | | f d | | g } t j | } | d k r t j d
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helper that takes a target dir and mounts a rw dir over it, e.g.
/var , /tmp/upgrade-rw
R s -tt overlayfss -os upperdir=%s,lowerdir=%st nonet aufss br:%s:%s=roi s( Failed to mount rw aufs overlay for '%s's cmd '%s' return '%s' ( R R! R" R# R R$ R% R R& R R ( t targett rw_dirt
chroot_dirt
use_overlayfsR+ R, ( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt _aufsOverlayMount@ s,
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Wt S( s< test if the given dir is already mounted with aufs overlay s /proc/mountsR0 R1 ( t opent splitR R ( t dirt linet devicet
mountpointt fstypeR t at b( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt
is_aufs_mount_ s
$c C s[ t j d | | f x= | D]5 } | j d s@ | d 7} n | j | r t Sq Wt S( sD helper: check if the given mountpoint is a submount of a systemdir s is_submount: %s %sR. ( R R t endswitht
startswithR R ( R< t
systemdirst d( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt is_submountg s
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k r# t St S( Nt fuset rootfst tmpfst proct fusectrlR1 t devptst binfmt_misct sysfs( RG RH RI RJ s aufsRK RL RM ( RB R R ( t fs( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt
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helper that rsyncs the changes in the aufs chroot back to the
real system
i( t SYSTEM_DIRSt rsyncs -aHAXs --dels -vs
--progresss /%s/%s/s /%s/s
running: '%s's rsync back result for %s: %i(
t DistUpgradeMainRP R R! R" R R R$ R% R ( R RP RD R+ t ret( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt doAufsChrootRsyncy s
c C s1 t | | s t St j | t j d t S( s: helper that sets the chroot up and does chroot() into it R. ( t setupAufsChrootR R t chroott chdirR ( R R ( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt doAufsChroot s
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| | | snt Sq q Wt S( sB setup aufs chroot that is based on / but with a writable overlay s /proc/mountsi( RP R. s bind mounting %ss overlay mounting %sR) s
R1 s found %s that needs bind mount( R7 t readRR RP R t listdirR! t joint isdirR R R6 R R- R t mapt stringt stripR8 RO RE (
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| | sot SqoWt S( s$ setup aufs overlay over the rootfs t setupAufss /proc/mountss( no /proc/mounts, can not do aufs overlayi( RP s /var/cache/apt/archivess# mountpoint %s submount of systemdirR1 s found %s that needs bind mounts /needs_bind_mount/( R R R R! R" R RR RP R t addR7 R8 RO RE t warningR- R@ R6 R ( R3 RP RC t needs_bind_mountR: R; R< R= R R> R? RD ( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyRa s6
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t __main__t levels /tmp/upgrade-chroot-rws /tmp/upgrade-chroot( R^ R R t os.pathR$ R R R R- R6 R@ RE RO RT RX RU Ra t __name__t basicConfigt DEBUG( ( ( s? /usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeAufs.pyt <module> s& '
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