Been a looooong time, but I felt this was worthy of continuing to build up my tips and tools library/blog with some block searching info since I ran into this today @ work.
lsblk is only available on CentOS 6+ to my best knowledge, so on CentOS 5, we’d want to run the following:
[root@deadbeef ~]# tune2fs -l /dev/disk/block/fun | grep 'Block' | tr -s ' ' | cut -f3 -d' ' 471859163 4096 group:
So the first number is the amount of blocks and the second is the block size here. Multiply them together to get your answer in bytes. The word
group: is just an anomaly of the filtering and can be ignored.
In CentOS 6, we can leverage lsblk:
lsblk -o NAME,PHY-SeC Output: NAME PHY-SEC sda 512 ├─sda1 512 ├─sda2 512 └─sda5 512