[Android Apps and Games] piens:
I discovered already that my external sd_card is mmcblk1 and the second partition is mmcblk1p2 (179:10). Just don't know how to change the script /data/data/com.buak.Link2SD/init-link2sd.sh:

#!/system/bin/sh

#added by link2sd

sleep 2

mount -t vfat -o rw /dev/block/vold/179:10 /data/sdext2

mount -t vfat -o rw /dev/block/mmcblk1p2 /data/sdext2

If I change it, after reboot sdext2 still points to the 2nd partition of the internal sd-card

here the results:

mount:

rootfs on / type rootfs (rw)

tmpfs on /dev type tmpfs (rw,relatime,mode=755)

devpts on /dev/pts type devpts (rw,relatime,mode=600)

proc on /proc type proc (rw,relatime)

sysfs on /sys type sysfs (rw,relatime)

tmpfs on /mnt/asec type tmpfs (rw,relatime,mode=755,gid=1000)

/dev/block/mmcblk0p2 on /system type ext3 (rw,noatime,errors=continue,data=writeback)

/dev/block/mmcblk0p3 on /data type ext3 (rw,noatime,errors=continue,data=writeback)

/dev/block/mmcblk0p5 on /cache type ext3 (rw,nosuid,nodev,noatime,errors=continue,data=writeback)

/dev/block/mmcblk0p1 on /p1 type vfat (rw,relatime,fmask=0000,dmask=0000,allow_utime=0022,codepage=cp936,iocharset=cp936,shortname=mixed,errors=remount-ro)

/dev/block/vold/179:2 on /data/sdext2 type ext3 (rw,relatime,errors=continue,data=writeback)

/dev/block/vold/179:6 on /mnt/sdcard type vfat (rw,dirsync,nosuid,nodev,noexec,relatime,uid=1000,gid=1015,fmask=0002,dmask=0002,allow_utime=0020,codepage=cp936,iocharset=cp936,shortname=mixed,utf8,errors=remount-ro)

/dev/block/vold/179:6 on /mnt/secure/asec type vfat (rw,dirsync,nosuid,nodev,noexec,relatime,uid=1000,gid=1015,fmask=0002,dmask=0002,allow_utime=0020,codepage=cp936,iocharset=cp936,shortname=mixed,utf8,errors=remount-ro)

tmpfs on /mnt/sdcard/.android_secure type tmpfs (ro,relatime,size=0k,mode=000)

/dev/block/vold/179:9 on /mnt/sdcard/sdcard1 type vfat (rw,dirsync,nosuid,nodev,noexec,relatime,uid=1000,gid=1015,fmask=0702,dmask=0702,allow_utime=0020,codepage=cp936,iocharset=cp936,shortname=mixed,utf8,errors=remount-ro)

/dev/block/vold/179:9 on /mnt/secure/asec type vfat (rw,dirsync,nosuid,nodev,noexec,relatime,uid=1000,gid=1015,fmask=0702,dmask=0702,allow_utime=0020,codepage=cp936,iocharset=cp936,shortname=mixed,utf8,errors=remount-ro)

tmpfs on /mnt/sdcard/sdcard1/.android_secure type tmpfs (ro,relatime,size=0k,mode=000)

cat /proc/partitions:

179 0 3918848 mmcblk0

179 1 146485 mmcblk0p1

179 2 195313 mmcblk0p2

179 3 976563 mmcblk0p3

179 4 1 mmcblk0p4

179 5 58594 mmcblk0p5

179 6 2453241 mmcblk0p6

179 8 15558144 mmcblk1

179 9 13501608 mmcblk1p1

179 10 2048287 mmcblk1p2

cat /sys/block/mmcblk0/device/type:

SD

cat /sys/block/mmcblk1/device/type:

SD

mmcblk2 does not exist

ls -l /dev/block/:

brw------- 1 root root 7, 0 Jan 5 13:48 loop0

brw------- 1 root root 7, 1 Jan 5 13:48 loop1

brw------- 1 root root 7, 2 Jan 5 13:48 loop2

brw------- 1 root root 7, 3 Jan 5 13:48 loop3

brw------- 1 root root 7, 4 Jan 5 13:48 loop4

brw------- 1 root root 7, 5 Jan 5 13:48 loop5

brw------- 1 root root 7, 6 Jan 5 13:48 loop6

brw------- 1 root root 7, 7 Jan 5 13:48 loop7

brw------- 1 root root 179, 0 Jan 5 13:48 mmcblk0

brw------- 1 root root 179, 1 Jan 5 13:48 mmcblk0p1

brw------- 1 root root 179, 2 Jan 5 13:48 mmcblk0p2

brw------- 1 root root 179, 3 Jan 5 13:48 mmcblk0p3

brw------- 1 root root 179, 4 Jan 5 13:48 mmcblk0p4

brw------- 1 root root 179, 5 Jan 5 13:48 mmcblk0p5

brw------- 1 root root 179, 6 Jan 5 13:48 mmcblk0p6

brw------- 1 root root 179, 8 Jan 5 13:48 mmcblk1

brw------- 1 root root 179, 9 Jan 5 13:48 mmcblk1p1

brw------- 1 root root 179, 10 Jan 5 13:48 mmcblk1p2

brw------- 1 root root 1, 0 Jan 5 13:48 ram0

brw------- 1 root root 1, 1 Jan 5 13:48 ram1

brw------- 1 root root 1, 10 Jan 5 13:48 ram10

brw------- 1 root root 1, 11 Jan 5 13:48 ram11

brw------- 1 root root 1, 12 Jan 5 13:48 ram12

brw------- 1 root root 1, 13 Jan 5 13:48 ram13

brw------- 1 root root 1, 14 Jan 5 13:48 ram14

brw------- 1 root root 1, 15 Jan 5 13:48 ram15

brw------- 1 root root 1, 2 Jan 5 13:48 ram2

brw------- 1 root root 1, 3 Jan 5 13:48 ram3

brw------- 1 root root 1, 4 Jan 5 13:48 ram4

brw------- 1 root root 1, 5 Jan 5 13:48 ram5

brw------- 1 root root 1, 6 Jan 5 13:48 ram6

brw------- 1 root root 1, 7 Jan 5 13:48 ram7

brw------- 1 root root 1, 8 Jan 5 13:48 ram8

brw------- 1 root root 1, 9 Jan 5 13:48 ram9

drwxr-xr-x 2 root root 240 Jan 5 13:48 vold

ls -l /dev/block/vold:

brw-rw---- 1 root root 179, 0 Jan 5 13:48 179:0

brw-rw---- 1 root root 179, 1 Jan 5 13:48 179:1

brw-rw---- 1 root root 179, 10 Jan 5 13:48 179:10

brw-rw---- 1 root root 179, 2 Jan 5 13:48 179:2

brw-rw---- 1 root root 179, 3 Jan 5 13:48 179:3

brw-rw---- 1 root root 179, 4 Jan 5 13:48 179:4

brw-rw---- 1 root root 179, 5 Jan 5 13:48 179:5

brw-rw---- 1 root root 179, 6 Jan 5 13:48 179:6

brw-rw---- 1 root root 179, 8 Jan 5 13:48 179:8

brw-rw---- 1 root root 179, 9 Jan 5 13:48 179:9