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Old 02-22-2016, 11:00 AM   #1
JMcGroder
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Registered: Sep 2012
Location: Cranberry TWP, Pennsylvania
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Meaning of the "+" sign in the BLOCKS column of fdisk -l output


I'm trying to understand the meaning of the "+" sign in
the BLOCKS column of the fidsk -l output (shown bellow)

jim@D820:~$ sudo fdisk -l
[sudo] password for jim:

Disk /dev/sda: 60.0 GB, 60011642880 bytes
255 heads, 63 sectors/track, 7296 cylinders, total 117210240 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00020abe

Device Boot Start End Blocks Id System
/dev/sda1 * 63 2249099 1124518+ 83 Linux
/dev/sda2 2249100 44226944 20988922+ 83 Linux
/dev/sda3 44226945 86204789 20988922+ 83 Linux
/dev/sda4 86206464 117209087 15501312 5 Extended
/dev/sda5 86220855 96759494 5269320 83 Linux
/dev/sda6 96759558 107314199 5277321 83 Linux
/dev/sda7 107314263 112953014 2819376 83 Linux
/dev/sda8 112953078 117194174 2120548+ 82 Linux swap / Solaris
jim@D820:~$
 
Old 02-22-2016, 11:30 AM   #2
hydrurga
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Registered: Nov 2008
Distribution: Linux Mint 18 MATE
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Quote:
Originally Posted by JMcGroder View Post
I'm trying to understand the meaning of the "+" sign in
the BLOCKS column of the fidsk -l output (shown bellow)

jim@D820:~$ sudo fdisk -l
[sudo] password for jim:

Disk /dev/sda: 60.0 GB, 60011642880 bytes
255 heads, 63 sectors/track, 7296 cylinders, total 117210240 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00020abe

Device Boot Start End Blocks Id System
/dev/sda1 * 63 2249099 1124518+ 83 Linux
/dev/sda2 2249100 44226944 20988922+ 83 Linux
/dev/sda3 44226945 86204789 20988922+ 83 Linux
/dev/sda4 86206464 117209087 15501312 5 Extended
/dev/sda5 86220855 96759494 5269320 83 Linux
/dev/sda6 96759558 107314199 5277321 83 Linux
/dev/sda7 107314263 112953014 2819376 83 Linux
/dev/sda8 112953078 117194174 2120548+ 82 Linux swap / Solaris
jim@D820:~$
As far as I am aware, it means that the partition has an odd number of sectors which means that it does not end exactly on a 1024 byte block boundary.
 
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