Hola , pongo todo lo que he hecho
# mount
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/179:0 /sdcard vfat rw,dirsync,nosuid,nodev,noexec,uid=1000,gid=
1015,fmask=0000,dmask=0000,allow_utime=0022,codepa ge=cp437,iocharset=iso8859-1,s
hortname=mixed,utf8 0 0
# df
df
/dev: 95184K total, 0K used, 95184K available (block size 4096)
/sqlite_stmt_journals: 4096K total, 0K used, 4096K available (block size 4096)
/system: 153600K total, 138916K used, 14684K available (block size 4096)
/data: 169088K total, 91264K used, 77824K available (block size 4096)
/cache: 153600K total, 36100K used, 117500K available (block size 4096)
/sdcard: 7767212K total, 2055284K used, 5711928K available (block size 4096)
#
# mount -o rw,remount /dev/block/mtdblock3 /system
mount -o rw,remount /dev/block/mtdblock3 /system
# mount
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 rw 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/179:0 /sdcard vfat rw,dirsync,nosuid,nodev,noexec,uid=1000,gid=
1015,fmask=0000,dmask=0000,allow_utime=0022,codepa ge=cp437,iocharset=iso8859-1,s
hortname=mixed,utf8 0 0
# ls -l /system/lib/libhgl.so
ls -l /system/lib/libhgl.so
-rw-r--r-- root root 533452 2009-10-06 15:36 libhgl.so
# rm /system/lib/libhgl.so
rm /system/lib/libhgl.so
rm failed for /system/lib/libhgl.so, Directory not empty
# df
df
/dev: 95184K total, 0K used, 95184K available (block size 4096)
/sqlite_stmt_journals: 4096K total, 0K used, 4096K available (block size 4096)
/system: 153600K total, 153600K used, 0K available (block size 4096)
/data: 169088K total, 91272K used, 77816K available (block size 4096)
/cache: 153600K total, 36100K used, 117500K available (block size 4096)
/sdcard: 7767212K total, 2055284K used, 5711928K available (block size 4096)
# chmod 777 /system/lib/libhgl.so
chmod 777 /system/lib/libhgl.so
# ls -l /system/lib/libhgl.so
ls -l /system/lib/libhgl.so
-rwxrwxrwx root root 533452 2009-10-06 15:36 libhgl.so
# rm /system/lib/libhgl.so
rm /system/lib/libhgl.so
rm failed for /system/lib/libhgl.so, Directory not empty
Me parece curioso que al montar el directorio system, como rw le queda 14684K libre. y en cuanto intento eliminar el fichero, ese espacio se lo come....