On 4/9/2015 5:22 PM, Chuck Campbell wrote:
Subject says it.
I would like to find out if I have anything written on the MBR of a
disk in my system /dev/sda, or any other device.
If there is something there, is it readable, or recognizable to humans?
the MBR contains both binary boot code, which is not human readable, and
the master partiion table for the device. you can display the latter like...
$ sudo parted /dev/sda print
Model: ATA Crucial_CT512M55 (scsi)
Disk /dev/sda: 512GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 525MB 524MB primary ext4 boot
2 525MB 512GB 512GB primary lvm
note tho, that if "Partition Table" instead says gpt, then the disk is
formatted GPT and doesn't use the MBR.
$ sudo parted /dev/sdb print
Model: ATA ST32000644NS (scsi)
Disk /dev/sdb: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
1 65.5kB 2000GB 2000GB pri raid
--
john r pierce, recycling bits in santa cruz
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