I recently switched to CentOS 7. I was trying to safely remove my backup drive. The drive unmounts, but the LED on it, stays on.
I know how a disk can be safely removed using command line as answered here. So I issued the following commands
udisksctl unmount -b /dev/sdb1
udisksctl power-off -b /dev/sdb
(yes my disk was /dev/sdb) Which outputs the following :
Unmounted /dev/sdb1.
Unknown command `power-off'
Usage:
udisksctl COMMAND
Commands:
help Shows this information
info Shows information about an object
dump Shows information about all objects
status Shows high-level status
monitor Monitor changes to objects
mount Mount a filesystem
unmount Unmount a filesystem
unlock Unlock an encrypted device
lock Lock an encrypted device
loop-setup Set-up a loop device
loop-delete Delete a loop device
smart-simulate Set SMART data for a drive
Use "udisksctl COMMAND --help" to get help on each command.
I checked if I was using the latest version of udisks2:
sudo yum install udisks2
[sudo] password for user:
Loaded plugins: langpacks
Loading mirror speeds from cached hostfile
* base: centos.excellmedia.net
* extras: centos.excellmedia.net
* rpmfusion-free-updates: fr2.rpmfind.net
* rpmfusion-nonfree-updates: fr2.rpmfind.net
* updates: centos.excellmedia.net
Package udisks2-2.1.2-6.el7.x86_64 already installed and latest version
Nothing to do
I have thoroughly searched the web, but nothing relevant showed up. I think I could be missing a package, because I did a minimal install, though I am not certain if that is the case. Can someone please help me out?
