Why do we need both mkswap and /etc/fstab to set up swap?
Given
$ cat /etc/fstab
...
/dev/mapper/lubuntu--vg-swap none swap sw 0 0
why do we still need:
$ sudo swapoff /dev/mapper/lubuntu--vg-swap
$ sudo mkswap /dev/mapper/lubuntu--vg-swap
$ sudo swapon /dev/mapper/lubuntu--vg-swap
?
In other wors, why do we need both mkswap
and /etc/fstab
to set up swap? What do mkswap
and /etc/fstab
do differently?
My question comes from https://unix.stackexchange.com/a/502591/674
Thanks.
linux fstab swap
add a comment |
Given
$ cat /etc/fstab
...
/dev/mapper/lubuntu--vg-swap none swap sw 0 0
why do we still need:
$ sudo swapoff /dev/mapper/lubuntu--vg-swap
$ sudo mkswap /dev/mapper/lubuntu--vg-swap
$ sudo swapon /dev/mapper/lubuntu--vg-swap
?
In other wors, why do we need both mkswap
and /etc/fstab
to set up swap? What do mkswap
and /etc/fstab
do differently?
My question comes from https://unix.stackexchange.com/a/502591/674
Thanks.
linux fstab swap
mkswap sets up the swap space. fstab just saws to use the swap space (eliminating the need to manually use swapon on boot).
– jordanm
3 mins ago
add a comment |
Given
$ cat /etc/fstab
...
/dev/mapper/lubuntu--vg-swap none swap sw 0 0
why do we still need:
$ sudo swapoff /dev/mapper/lubuntu--vg-swap
$ sudo mkswap /dev/mapper/lubuntu--vg-swap
$ sudo swapon /dev/mapper/lubuntu--vg-swap
?
In other wors, why do we need both mkswap
and /etc/fstab
to set up swap? What do mkswap
and /etc/fstab
do differently?
My question comes from https://unix.stackexchange.com/a/502591/674
Thanks.
linux fstab swap
Given
$ cat /etc/fstab
...
/dev/mapper/lubuntu--vg-swap none swap sw 0 0
why do we still need:
$ sudo swapoff /dev/mapper/lubuntu--vg-swap
$ sudo mkswap /dev/mapper/lubuntu--vg-swap
$ sudo swapon /dev/mapper/lubuntu--vg-swap
?
In other wors, why do we need both mkswap
and /etc/fstab
to set up swap? What do mkswap
and /etc/fstab
do differently?
My question comes from https://unix.stackexchange.com/a/502591/674
Thanks.
linux fstab swap
linux fstab swap
asked 15 mins ago
TimTim
27.2k78263472
27.2k78263472
mkswap sets up the swap space. fstab just saws to use the swap space (eliminating the need to manually use swapon on boot).
– jordanm
3 mins ago
add a comment |
mkswap sets up the swap space. fstab just saws to use the swap space (eliminating the need to manually use swapon on boot).
– jordanm
3 mins ago
mkswap sets up the swap space. fstab just saws to use the swap space (eliminating the need to manually use swapon on boot).
– jordanm
3 mins ago
mkswap sets up the swap space. fstab just saws to use the swap space (eliminating the need to manually use swapon on boot).
– jordanm
3 mins ago
add a comment |
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mkswap sets up the swap space. fstab just saws to use the swap space (eliminating the need to manually use swapon on boot).
– jordanm
3 mins ago