Ubuntu отключение жесткого диска

Удаление устройства

Чтобы отключить жеский диск в командной строке Ubuntu, необходимо в файле /sys/block/sdX/device/delete поставить 1.

echo 1 >/sys/block/sdX/device/delete
(x — буква устройства, sda, sdb, etc).

Чтобы не делать это в ручную, в инете нашел вот такой срипт, который показывает информацию о диске с возможностью его отключения.

#!/bin/bash

# - - - - - - - - - - - - - - = = = = = = = - - - - - - - - - - - - - -
    Name="SATA Stop"
#       Desc: Turns off SATA drives
#       Usage:  sudo sh ./sataStop.sh
#
#       Author:         Samolysov Maxim
#       E-mail:         [email protected]
#       License:        Free for all with NO guarantee. Just think & make sure you know what R`You doing
# - - - - - - - - - - - - - - = = = = = = = - - - - - - - - - - - - - -
#       HISTORY
    Version="01.00.01"; Date=[21.04.2013]
#       + basic functionality
#       + colors
#       + once I`ve stopped ROOT disk... (just for sure it works)... So, now here is a check to not let this happens again )))
#
    Version="01.00.02"; Date=[24.04.2013]
#       ! fixed bug with last disk skipped (not turned off)
    Version="01.00.03"; Date=[07.05.2013]
#       + colorized X-letter in sdX
    Version="01.00.04"; Date=[10.05.2013]
#       + getSize function
#       + show disk size in GB & GiB
# in future...  Version="01.00.0";      Date=[..2013]
#       + try to unmount mounted partitions (use with care)
#       HISTORY END
# - - - - - - - - - - - - - - = = = = = = = - - - - - - - - - - - - - -
###     GLOBAL VARIABLES
    disks=$(ls /sys/block/ | grep sd)
    count=0
    ROOT_DISK=""
    HAS_MOUNTS=""
    SIZE=""
    # Regular Colors
          Black='\e[01;30m' # Black
            Red='\e[00;31m' # Red
       LightRed='\e[01;31m' # LightRed
          Green='\e[00;32m' # Green
     LightGreen='\e[01;32m' # LightGreen
         Yellow='\e[00;33m' # Yellow
    LightYellow='\e[01;33m' # LightYellow
           Blue='\e[00;34m' # Blue
      LightBlue='\e[01;34m' # LightBlue
         Purple='\e[00;35m' # Purple
    LightPurple='\e[01;35m' # LightPurple
           Cyan='\e[00;36m' # Cyan
          White='\e[01;37m' # White
    Color_Off='\e[0m'        # Reset color
    fullName=" $LightYellow$Name$Yellow v.$LightBlue$Version $Yellow$Green$Date$Yellow"
###     GLOBAL VARIABLES END
### - - - - - - - - - - - - - - = = = = = = = - - - - - - - - - - - - - - = = = = = = = - - - - - - - - - - - - - -
#####   FUNCTIONS

checkMounted () {
mountedTo=$(sudo lsblk -ro name,mountpoint $1 | grep $1 | awk '{print $2}')
}               # checkMounted END


getModel () {
model=$(sudo hdparm -i /dev/$1 | grep -i model| sed -e 's/Model=/\"/' -e 's/,.*$/\"/')
}               # getModel END


getSize () {
SIZE=""
#       local size=$(sudo lsblk -ro size /dev/$disk | awk 'NR == 2 {print ($1)}' | sed 's/,/./')
local device=$1
local bi=$2
local sp=""
local bsize=$(cat /sys/block/$device/size)
bsize=$( expr $bsize '*'  512)
if [[ $bsize -lt 1000 ]]; then
    bsize="$bsize"
    sp="B"
elif [[ $bsize -lt 1000000 ]]; then
    [[ $bi = 1 ]] && bsize="$bsize/1024" sp="KiB" || bsize="$bsize/1000" sp="KB"
#       sp="KB"
elif [[ $bsize -lt 1000000000 ]]; then
    [[ $bi = 1 ]] && bsize="$bsize/1048576" sp="MiB" || bsize="$bsize/1000000" sp="MB"
#       bsize="$bsize/1048576"
#       sp="MB"
else
    [[ $bi = 1 ]] && bsize="$bsize/1073741824" sp="GiB" || bsize="$bsize/1000000000" sp="GB"
#       bsize="$bsize/1073741824"
#       sp="GB"
fi
bsize=$(echo "scale=0; $bsize" | bc -l)
[[ $bsize -lt 10 ]]   && bsize=" $bsize"
[[ $bsize -lt 100 ]]  && bsize=" $bsize"
[[ $bsize -lt 1000 ]] && bsize=" $bsize"

SIZE="$bsize $sp"
}               # getSize END


main () {
echo -e "$fullName"
# !!! Do NOT even FUCKING try to TURN OFF the ROOT disk !!! COMPUTER WILL FRIZE AND POSSIBLY LOST DATA !!!
for disk in $disks; do
    let count++
    echo -ne "$Red"
    local model=$(sudo hdparm -i /dev/$disk | grep -i model| sed -e 's/Model=/\"/' -e 's/,.*$/\"/')
    getSize "$disk" 0
    local size="$SIZE"
    getSize "$disk" 1
    local size="$size ($SIZE)"
    disk_1="sd"
    disk_2=$(echo $disk | sed 's/..//')
    echo -e "$LightYellow$count. $LightPurple$disk_1$LightYellow$disk_2\t\e[07;32m$size\e[0m\t$LightGreen$model$ColorOff"
    local parts=$(sudo lsblk -ro name,type | grep $disk | awk '/part/ {print ($1)}' )
    for part in $parts; do
        local mountedTo=$(sudo lsblk -ro name,mountpoint /dev/$part | grep $part | awk '{print $2}')
        local fileSystem=$(sudo lsblk -ro name,fstype /dev/$part | grep $part | awk '{print $2}')
        getSize "$disk/$part" 1
        fileSystem="\t$fileSystem\t $SIZE"
        if [[ $mountedTo == "" ]]; then
            mountedTo="$Green\tnot mounted $ColorOff"
        elif [[ $mountedTo == "/" ]]; then
            # !!! Do NOT even FUCKING try to TURN OFF the ROOT disk !!! COMPUTER WILL FRIZE AND POSSIBLY LOST DATA !!!
            ROOT_DISK=$count
            mountedTo="$Red\t$mountedTo$Yellow\t $answer &&  $answer > 0 ]]; then
        stop_disk=$(echo ${disks} | awk '{print $'$answer'}')
        local disk_mounted="no"
        d_isk_number=$(echo ${HAS_MOUNTS} | grep -q "${stop_disk}") && disk_mounted="yes"
        if [[ $disk_mounted == "yes" ]]; then
            echo -e "$LightPurple$stop_disk$LightBlue has mounted partitions.$Yellow Unmount them and try again."
sleep 15
        else
            local model=$(sudo hdparm -i /dev/$stop_disk | grep -i model| sed -e 's/Model=/\"/' -e 's/,.*$/\"/')
            echo -ne "Turning off $LightPurple$stop_disk $LightGreen$model...   "
            sudo sh -c "echo 1 > /sys/block/$stop_disk/device/delete"
sleep 2
            # !!! Do NOT even FUCKING try to TURN OFF the ROOT disk !!! COMPUTER WILL FRIZE AND POSSIBLY LOST DATA !!!
            ls /sys/block | grep -q "${stop_disk}" || echo -e "$LightYellow Successfully stopped."
sleep 15
        fi
    fi
fi # $answer == $ROOT_DISK
echo -e "$LightYellow Exit."
sleep 3
}               # main END

#####   FUNCTIONS END
### - - - - - - - - - - - - - - = = = = = = = - - - - - - - - - - - - - - = = = = = = = - - - - - - - - - - - - - -
#####   START SCRIPT

clear
main
echo -ne "$ColorOff"
#####   START SCRIPT END