replace /etc/security/cacerts.bks

[eadwig]

hey,
i got some private certificates i need to install on my rooted htc desire.

i copied /etc/security/cacerts.bks and added my cert

# keytool -keystore cacerts.bks -storetype BKS -provider org.bouncycastle.jce.provider.BouncyCastleProvider -storepass changeit -importcert -trustcacerts -alias CACERT -file mycert.crt

then i tried to replace the old cacerts.bks, but i failed everytime.

• 1. mount /system rw
• mount -o rw,remount -t yaffs2 /dev/block/mtdblock3
• adb remount
• 2. replace /cacerts.bks
• cp /mnt/sdcard/cacerts.bks /system/etc/security/cacerts.bks > cp: cannot create '/system/etc/security/cacerts.bks': File exists OR rm failed for /system/etc/security/cacerts.bks, Directory not empty
• dd if=/data/cacerts.bks of=/system/etc/security/cacerts.bks > 123+1 records in
  123+1 records out
  63285 bytes transferred in 0.015 secs (4219000 bytes/sec) > ls -l tells me, that the filesize changed, but after rebooting the htc it's stil the old file.
• adb push cacerts.bks /system/etc/security > failed to copy 'cacerts.bks' to '/system/etc/security/cacerts.bks': Directory not empty

i need to install those certificates, but i don't know how.... any ideas?

kind regards
eadwig