[Galaxy 3 Android Development] fisiu82:
I used .zip update. Previous version was 10.

Just found some interesting log:

04-13 15:00:27.496: E/PackageManager(4108): Couldn't create temp file for downloaded package file.
04-13 15:00:27.515: E/AndroidRuntime(4108): *** FATAL EXCEPTION IN SYSTEM PROCESS: PackageManager
04-13 15:00:27.515: E/AndroidRuntime(4108): java.lang.NullPointerException
04-13 15:00:27.515: E/AndroidRuntime(4108):	at com.android.server.PackageManagerService$FileInstallArgs.createCopyFile(PackageManagerService.java:5247)
04-13 15:00:27.515: E/AndroidRuntime(4108):	at com.android.server.PackageManagerService$FileInstallArgs.copyApk(PackageManagerService.java:5255)
04-13 15:00:27.515: E/AndroidRuntime(4108):	at com.android.server.PackageManagerService$InstallParams.handleStartCopy(PackageManagerService.java:5051)
04-13 15:00:27.515: E/AndroidRuntime(4108):	at com.android.server.PackageManagerService$HandlerParams.startCopy(PackageManagerService.java:4902)
04-13 15:00:27.515: E/AndroidRuntime(4108):	at com.android.server.PackageManagerService$PackageHandler.doHandleMessage(PackageManagerService.java:516)
04-13 15:00:27.515: E/AndroidRuntime(4108):	at com.android.server.PackageManagerService$PackageHandler.handleMessage(PackageManagerService.java:461)
04-13 15:00:27.515: E/AndroidRuntime(4108):	at android.os.Handler.dispatchMessage(Handler.java:99)
04-13 15:00:27.515: E/AndroidRuntime(4108):	at android.os.Looper.loop(Looper.java:130)
04-13 15:00:27.515: E/AndroidRuntime(4108):	at android.os.HandlerThread.run(HandlerThread.java:60)
04-13 15:00:27.580: E/installd(2433): eof
04-13 15:00:27.580: E/installd(2433): failed to read size

By default, downloaded packages before installation are saved into /cache? Or somewhere else?

And here are mount points from `mount`:

rootfs on / type rootfs (rw,relatime)
tmpfs on /dev type tmpfs (rw,noatime,mode=755)
devpts on /dev/pts type devpts (rw,noatime,mode=600)
proc on /proc type proc (rw,noatime)
sysfs on /sys type sysfs (rw,noatime)
none on /acct type cgroup (rw,relatime,cpuacct)
tmpfs on /mnt/asec type tmpfs (rw,noatime,mode=755,gid=1000)
tmpfs on /mnt/obb type tmpfs (rw,noatime,mode=755,gid=1000)
none on /dev/cpuctl type cgroup (rw,relatime,cpu)
/dev/block/stl6 on /system type ext4 (rw,relatime,commit=600,barrier=0,nobh,data=writeback,noauto_da_alloc)
/dev/block/stl7 on /data type ext4 (rw,nosuid,nodev,noatime,nodiratime,commit=20,barrier=0,data=ordered,noauto_da_alloc)
/dev/block/stl8 on /cache type rfs (rw,noatime,nodiratime,vfat,llw,check=no,gid/uid/rwx,iocharset=cp437)
/dev/block/stl4 on /efs type rfs (rw,nosuid,nodev,noatime,vfat,llw,check=no,gid/uid/rwx,iocharset=cp437)
/dev/block/mmcblk0p2 on /data/sdext2 type ext4 (rw,noatime,commit=60,barrier=0,data=writeback,noauto_da_alloc)
/dev/block/mmcblk0p2 on /sd-ext type ext4 (rw,nosuid,nodev,noatime,nodiratime,commit=60,barrier=0,data=writeback,noauto_da_alloc)
/dev/block/mmcblk0p2 on /data/app type ext4 (rw,nosuid,nodev,noatime,nodiratime,commit=60,barrier=0,data=writeback,noauto_da_alloc)
/dev/block/mmcblk0p2 on /data/dalvik-cache type ext4 (rw,nosuid,nodev,noatime,nodiratime,commit=60,barrier=0,data=writeback,noauto_da_alloc)
/dev/block/vold/179:1 on /mnt/sdcard type vfat (rw,dirsync,nosuid,nodev,noexec,relatime,uid=1000,gid=1015,fmask=0602,dmask=0602,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro)
/dev/block/vold/179:1 on /mnt/secure/asec type vfat (rw,dirsync,nosuid,nodev,noexec,relatime,uid=1000,gid=1015,fmask=0602,dmask=0602,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro)
tmpfs on /mnt/sdcard/.android_secure type tmpfs (ro,relatime,size=0k,mode=000)