I have a 4.0 Android, installed the SDK.
in adb shell, I become root, but cannot change the /etc/hosts file, that contains
root@android:/system/etc # cat hosts
127.0.0.1 localhost
74.125.93.113
android.clients.google.com
root@android:/system/etc # id
uid=0(root) gid=0(root)
root@android:/system/etc # ls
NOTICE.html.gz
apns-conf.xml
audio_effects.conf
bluetooth
dbus.conf
dhcpcd
dhcpcd.conf
event-log-tags
fallback_fonts.xml
hosts
init.goldfish.sh
install-recovery.sh
media_profiles.xml
media_profiles1.xml
mkshrc
permissions
ppp
ril
security
system_fonts.xml
usb_modeswitch.d
usb_modeswitch.sh
vold.fstab
wifi
root@android:/system/etc # ls
NOTICE.html.gz
apns-conf.xml
audio_effects.conf
bluetooth
dbus.conf
dhcpcd
dhcpcd.conf
event-log-tags
fallback_fonts.xml
hosts
init.goldfish.sh
install-recovery.sh
media_profiles.xml
media_profiles1.xml
mkshrc
permissions
ppp
ril
security
system_fonts.xml
usb_modeswitch.d
usb_modeswitch.sh
vold.fstab
wifi
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