How to find out which disk is “sd 0:4:0:0â€
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I run Ubuntu on a 32GB USB jump drive. Started recently, I kept getting "sd 0:4:0:0: rejecting I/O to offline device". How do I find out if this is the internal hard drive or the external USB drive?
devices
asked Feb 21 at 21:58
Codism
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up vote
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I run Ubuntu on a 32GB USB jump drive. Started recently, I kept getting "sd 0:4:0:0: rejecting I/O to offline device". How do I find out if this is the internal hard drive or the external USB drive?
devices
asked Feb 21 at 21:58
Codism
1135
add a comment |Â
up vote
2
down vote
favorite
up vote
2
down vote
favorite
I run Ubuntu on a 32GB USB jump drive. Started recently, I kept getting "sd 0:4:0:0: rejecting I/O to offline device". How do I find out if this is the internal hard drive or the external USB drive?
devices
asked Feb 21 at 21:58
Codism
1135
I run Ubuntu on a 32GB USB jump drive. Started recently, I kept getting "sd 0:4:0:0: rejecting I/O to offline device". How do I find out if this is the internal hard drive or the external USB drive?
devices
devices
asked Feb 21 at 21:58
Codism
1135
asked Feb 21 at 21:58
Codism
1135
asked Feb 21 at 21:58
Codism
1135
asked Feb 21 at 21:58
Codism
1135
asked Feb 21 at 21:58
Codism
1135
1135
add a comment |Â
add a comment |Â
1 Answer
1
active
oldest
votes
up vote
3
down vote
accepted
I did a bit of googling because I was also curious what the 4 digits with colons meant in terms of drive identification. I believe the 4 digits are the SCSI numbers.
Update
If you just install and run lsscsi it will give you something like this:
[0:0:0:0] disk ATA LITEON LCH-256V2 902 /dev/sda
[3:0:0:0] disk Kingston DataTraveler G3 PMAP /dev/sdb
Original Post
If you run ls -ld /sys/block/sd*/device it should look like this:
lrwxrwxrwx 1 root root 0 Feb 21 18:11 /sys/block/sda/device -> ../../../0:0:0:0
lrwxrwxrwx 1 root root 0 Feb 21 18:12 /sys/block/sdb/device -> ../../../3:0:0:0
which means 0:0:0:0 is sda and 3:0:0:0 is sdb.
You can sort out what sda and sdb are by using sudo lshw -class disk -short or something similar.
In my case:
H/W path Device Class Description
============================================================
/0/100/14/0/1/0.0.0 /dev/sdb disk 16GB SCSI Disk
/0/0/0.0.0 /dev/sda disk 256GB LITEON LCH-256V2
sda is my internal drive and sdb is my flash drive.
answered Feb 21 at 22:33
Ian Colwell
1384
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
accepted
I did a bit of googling because I was also curious what the 4 digits with colons meant in terms of drive identification. I believe the 4 digits are the SCSI numbers.
Update
If you just install and run lsscsi it will give you something like this:
[0:0:0:0] disk ATA LITEON LCH-256V2 902 /dev/sda
[3:0:0:0] disk Kingston DataTraveler G3 PMAP /dev/sdb
Original Post
If you run ls -ld /sys/block/sd*/device it should look like this:
lrwxrwxrwx 1 root root 0 Feb 21 18:11 /sys/block/sda/device -> ../../../0:0:0:0
lrwxrwxrwx 1 root root 0 Feb 21 18:12 /sys/block/sdb/device -> ../../../3:0:0:0
which means 0:0:0:0 is sda and 3:0:0:0 is sdb.
You can sort out what sda and sdb are by using sudo lshw -class disk -short or something similar.
In my case:
H/W path Device Class Description
============================================================
/0/100/14/0/1/0.0.0 /dev/sdb disk 16GB SCSI Disk
/0/0/0.0.0 /dev/sda disk 256GB LITEON LCH-256V2
sda is my internal drive and sdb is my flash drive.
answered Feb 21 at 22:33
Ian Colwell
1384
add a comment |Â
up vote
3
down vote
accepted
I did a bit of googling because I was also curious what the 4 digits with colons meant in terms of drive identification. I believe the 4 digits are the SCSI numbers.
Update
If you just install and run lsscsi it will give you something like this:
[0:0:0:0] disk ATA LITEON LCH-256V2 902 /dev/sda
[3:0:0:0] disk Kingston DataTraveler G3 PMAP /dev/sdb
Original Post
If you run ls -ld /sys/block/sd*/device it should look like this:
lrwxrwxrwx 1 root root 0 Feb 21 18:11 /sys/block/sda/device -> ../../../0:0:0:0
lrwxrwxrwx 1 root root 0 Feb 21 18:12 /sys/block/sdb/device -> ../../../3:0:0:0
which means 0:0:0:0 is sda and 3:0:0:0 is sdb.
You can sort out what sda and sdb are by using sudo lshw -class disk -short or something similar.
In my case:
H/W path Device Class Description
============================================================
/0/100/14/0/1/0.0.0 /dev/sdb disk 16GB SCSI Disk
/0/0/0.0.0 /dev/sda disk 256GB LITEON LCH-256V2
sda is my internal drive and sdb is my flash drive.
answered Feb 21 at 22:33
Ian Colwell
1384
add a comment |Â
up vote
3
down vote
accepted
up vote
3
down vote
accepted
I did a bit of googling because I was also curious what the 4 digits with colons meant in terms of drive identification. I believe the 4 digits are the SCSI numbers.
Update
If you just install and run lsscsi it will give you something like this:
[0:0:0:0] disk ATA LITEON LCH-256V2 902 /dev/sda
[3:0:0:0] disk Kingston DataTraveler G3 PMAP /dev/sdb
Original Post
If you run ls -ld /sys/block/sd*/device it should look like this:
lrwxrwxrwx 1 root root 0 Feb 21 18:11 /sys/block/sda/device -> ../../../0:0:0:0
lrwxrwxrwx 1 root root 0 Feb 21 18:12 /sys/block/sdb/device -> ../../../3:0:0:0
which means 0:0:0:0 is sda and 3:0:0:0 is sdb.
You can sort out what sda and sdb are by using sudo lshw -class disk -short or something similar.
In my case:
H/W path Device Class Description
============================================================
/0/100/14/0/1/0.0.0 /dev/sdb disk 16GB SCSI Disk
/0/0/0.0.0 /dev/sda disk 256GB LITEON LCH-256V2
sda is my internal drive and sdb is my flash drive.
answered Feb 21 at 22:33
Ian Colwell
1384
I did a bit of googling because I was also curious what the 4 digits with colons meant in terms of drive identification. I believe the 4 digits are the SCSI numbers.
Update
If you just install and run lsscsi it will give you something like this:
[0:0:0:0] disk ATA LITEON LCH-256V2 902 /dev/sda
[3:0:0:0] disk Kingston DataTraveler G3 PMAP /dev/sdb
Original Post
If you run ls -ld /sys/block/sd*/device it should look like this:
lrwxrwxrwx 1 root root 0 Feb 21 18:11 /sys/block/sda/device -> ../../../0:0:0:0
lrwxrwxrwx 1 root root 0 Feb 21 18:12 /sys/block/sdb/device -> ../../../3:0:0:0
which means 0:0:0:0 is sda and 3:0:0:0 is sdb.
You can sort out what sda and sdb are by using sudo lshw -class disk -short or something similar.
In my case:
H/W path Device Class Description
============================================================
/0/100/14/0/1/0.0.0 /dev/sdb disk 16GB SCSI Disk
/0/0/0.0.0 /dev/sda disk 256GB LITEON LCH-256V2
sda is my internal drive and sdb is my flash drive.
answered Feb 21 at 22:33
Ian Colwell
1384
edited Feb 21 at 23:38
answered Feb 21 at 22:33
Ian Colwell
1384
answered Feb 21 at 22:33
Ian Colwell
1384
answered Feb 21 at 22:33
Ian Colwell
1384
1384
add a comment |Â
add a comment |Â
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