T-Mobile G2 / HTC Magic file system details

I am updating my forensics book/research on the T-Mobile G2 (HTC Magic) and hooked it up to my workstation.  Like the G1, the YAFFS2 file system is still in use on key file systems.  For those that are interested, here’s the output from mount:

root@wintermute:/home/ahoog# /home/ahoog/src/android-sdk-linux_x86-1.5_r3/tools/adb shell mount
rootfs / rootfs ro 0 0
tmpfs /dev tmpfs rw,mode=755 0 0
devpts /dev/pts devpts rw,mode=600 0 0
proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
tmpfs /sqlite_stmt_journals tmpfs rw,size=4096k 0 0
/dev/block/mtdblock3 /system yaffs2 ro 0 0
/dev/block/mtdblock5 /data yaffs2 rw,nosuid,nodev 0 0
/dev/block/mtdblock4 /cache yaffs2 rw,nosuid,nodev 0 0
/dev/block//vold/179:1 /sdcard vfat rw,dirsync,nosuid,nodev,noexec,uid=1000,gid=1000,fmask=0711,dmask=0700,allow_utime=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8 0 0