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ubuntu@ubuntu:~$ dmesg |grep sd

[    2.144503] sd 0:0:0:0: Attached scsi generic sg0 type 0

[    2.144538] sd 0:0:0:0: [sda] 321672960 512-byte logical blocks: (164 GB/153 GiB)

[    2.144575] sd 0:0:0:0: [sda] Write Protect is off

[    2.144578] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00

[    2.144597] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

[    2.144704]  sda: sda1 sda2 < sda5 >

[    2.184826] sd 0:0:0:0: [sda] Attached SCSI disk

[    3.589412] EXT4-fs (sda1): barriers enabled

[    3.599670] kjournald2 starting: pid 400, dev sda1:8, commit interval 5 seconds

[    3.599682] EXT4-fs (sda1): delayed allocation enabled

[    3.616161] EXT4-fs (sda1): mounted filesystem with ordered data mode

[   67.959237] Adding 914424k swap on /dev/sda5.  Priority:-1 extents:1 across:914424k

ubuntu@ubuntu:~$