To my knowledge Ubuntu creates a system reserve on partitions that take up 5% of the partition capacity. On 8 TB drives system reserve takes up about 380 gigs. I double checked this in df and can calculate the missing gigs. I have four 8 TB partitions and am losing 1.5 TB of storage space. Is there a way to make ubuntu use a smaller percentage for the system reserve?
Ubuntu – Can I make the system reserve for partitions smaller
ext4filesystem
Best Answer
mkfs.ex4
to create a linuxext4
file systemWhen you use
mkfs.ext4
you will create a new file system (and the data in the partition will be lost). You must backup all data, that you cannot afford to lose, before doing it.You can use the option
-m
to specify the reserved percentage, for example to get 3%,where x is the device letter and n is partition number, for example
/dev/sda1
.From
man mkfs.ex4
tune2fs
to modify a linuxext4
file systemWhen you use
tune2fs
you will modify an existing file system (and the data in the partition should be preserved). But you should backup all data, that you cannot afford to lose, before doing it.You can use the option
-m
to specify the reserved percentage, for example to get 3%,where x is the device letter and n is partition number, for example
/dev/sda1
.