Ubuntu hibernate not work

**Toz** · June 1st, 2012

Great news. You could create a file in /etc/pm-sleep.d to automatically disable the ramdisk before hibernate and recreate it on resume (so you don't have to do it manually each time). The file should be in a format like this:

Code:

#!/bin/bash

case "${1}" in
    hibernate)
       # command to disable ramdisk
       ;;
    thaw)
       # command to re-enable ramdisk
       ;;
esac

**huangyingw** · June 2nd, 2012

Yes, thank you,bellowing is my ramdisk.sh

Code:

root@laptop:~# cat /etc/pm/sleep.d/ramdisk.sh 
#!/bin/bash 

case "${1}" in
  hibernate)
    # command to disable ramdisk
    swapoff /dev/zram0
    umount /dev/zram0
    echo 1 > /sys/block/zram0/reset
    ;;
  thaw)
    # command to re-enable ramdisk
    /etc/init.d/wicd restart
    ;;
esac
root@laptop:~#

I have two questions, one is how to re-activate the ramdisk, and another is : After resuming, the OS is unlocked, this is a great security concern.
Could I add some command in the ramdisk.sh, so automatically lock the screen for security?