Why can't I mount array disks for dd?
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When I have an USB disk recognized, I can do the 'dd' command and wipe data from the stick. I cannot do that with a SCSI disk from array such as NetApp. They don't seem to mount at all. The disk would be detected but nothing is mounted. If I try to do the dd, it would display showing that it recorded in and out with zero bytes. It makes me think it is handled differently. How are disks wiped if coming from Netapp?
lsscsi -s shows that they exist but no sizes at all. Just each disk with the following list: devoce_blocked=0,iocounterbits, iodone_cnt, scsi_level, state, etc... nothing suggests a size.
ubuntu dd disk scsi
edited yesterday
Kusalananda
120k16225370
asked Sep 18 at 17:56
netrox
101
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When I have an USB disk recognized, I can do the 'dd' command and wipe data from the stick. I cannot do that with a SCSI disk from array such as NetApp. They don't seem to mount at all. The disk would be detected but nothing is mounted. If I try to do the dd, it would display showing that it recorded in and out with zero bytes. It makes me think it is handled differently. How are disks wiped if coming from Netapp?
lsscsi -s shows that they exist but no sizes at all. Just each disk with the following list: devoce_blocked=0,iocounterbits, iodone_cnt, scsi_level, state, etc... nothing suggests a size.
ubuntu dd disk scsi
edited yesterday
Kusalananda
120k16225370
asked Sep 18 at 17:56
netrox
101
Doeslsscsi -sshow a sensible size for the disk?
– Mark Plotnick
Sep 18 at 18:57
it did show that they exist but no sizes at all. just each disk with the following list: devoce_blocked=0,iocounterbits, iodone_cnt, scsi_level, state, etc... nothing suggests a size.
– netrox
Sep 18 at 19:40
I need to make sure I understand this... any disks with media that are mounted can be used for dd / sg_dd, right?
– netrox
Sep 18 at 19:40
What release of Ubuntu do you have? Maybe yourlsscsicommand doesn't support the-soption.
– Mark Plotnick
Sep 18 at 19:42
oh sorry, I did use -s and it showed no size either. when I did the --list, it showed the list as above. Just no size shown.
– netrox
Sep 18 at 20:13
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
When I have an USB disk recognized, I can do the 'dd' command and wipe data from the stick. I cannot do that with a SCSI disk from array such as NetApp. They don't seem to mount at all. The disk would be detected but nothing is mounted. If I try to do the dd, it would display showing that it recorded in and out with zero bytes. It makes me think it is handled differently. How are disks wiped if coming from Netapp?
lsscsi -s shows that they exist but no sizes at all. Just each disk with the following list: devoce_blocked=0,iocounterbits, iodone_cnt, scsi_level, state, etc... nothing suggests a size.
ubuntu dd disk scsi
edited yesterday
Kusalananda
120k16225370
asked Sep 18 at 17:56
netrox
101
When I have an USB disk recognized, I can do the 'dd' command and wipe data from the stick. I cannot do that with a SCSI disk from array such as NetApp. They don't seem to mount at all. The disk would be detected but nothing is mounted. If I try to do the dd, it would display showing that it recorded in and out with zero bytes. It makes me think it is handled differently. How are disks wiped if coming from Netapp?
lsscsi -s shows that they exist but no sizes at all. Just each disk with the following list: devoce_blocked=0,iocounterbits, iodone_cnt, scsi_level, state, etc... nothing suggests a size.
ubuntu dd disk scsi
ubuntu dd disk scsi
edited yesterday
Kusalananda
120k16225370
asked Sep 18 at 17:56
netrox
101
edited yesterday
Kusalananda
120k16225370
asked Sep 18 at 17:56
netrox
101
edited yesterday
Kusalananda
120k16225370
edited yesterday
Kusalananda
120k16225370
edited yesterday
Kusalananda
120k16225370
120k16225370
asked Sep 18 at 17:56
netrox
101
asked Sep 18 at 17:56
netrox
101
asked Sep 18 at 17:56
netrox
101
101
Doeslsscsi -sshow a sensible size for the disk?
– Mark Plotnick
Sep 18 at 18:57
it did show that they exist but no sizes at all. just each disk with the following list: devoce_blocked=0,iocounterbits, iodone_cnt, scsi_level, state, etc... nothing suggests a size.
– netrox
Sep 18 at 19:40
I need to make sure I understand this... any disks with media that are mounted can be used for dd / sg_dd, right?
– netrox
Sep 18 at 19:40
What release of Ubuntu do you have? Maybe yourlsscsicommand doesn't support the-soption.
– Mark Plotnick
Sep 18 at 19:42
oh sorry, I did use -s and it showed no size either. when I did the --list, it showed the list as above. Just no size shown.
– netrox
Sep 18 at 20:13
add a comment |
Doeslsscsi -sshow a sensible size for the disk?
– Mark Plotnick
Sep 18 at 18:57
it did show that they exist but no sizes at all. just each disk with the following list: devoce_blocked=0,iocounterbits, iodone_cnt, scsi_level, state, etc... nothing suggests a size.
– netrox
Sep 18 at 19:40
I need to make sure I understand this... any disks with media that are mounted can be used for dd / sg_dd, right?
– netrox
Sep 18 at 19:40
What release of Ubuntu do you have? Maybe yourlsscsicommand doesn't support the-soption.
– Mark Plotnick
Sep 18 at 19:42
oh sorry, I did use -s and it showed no size either. when I did the --list, it showed the list as above. Just no size shown.
– netrox
Sep 18 at 20:13
Does
lsscsi -s show a sensible size for the disk?– Mark Plotnick
Sep 18 at 18:57
Does
lsscsi -s show a sensible size for the disk?– Mark Plotnick
Sep 18 at 18:57
it did show that they exist but no sizes at all. just each disk with the following list: devoce_blocked=0,iocounterbits, iodone_cnt, scsi_level, state, etc... nothing suggests a size.
– netrox
Sep 18 at 19:40
it did show that they exist but no sizes at all. just each disk with the following list: devoce_blocked=0,iocounterbits, iodone_cnt, scsi_level, state, etc... nothing suggests a size.
– netrox
Sep 18 at 19:40
I need to make sure I understand this... any disks with media that are mounted can be used for dd / sg_dd, right?
– netrox
Sep 18 at 19:40
I need to make sure I understand this... any disks with media that are mounted can be used for dd / sg_dd, right?
– netrox
Sep 18 at 19:40
What release of Ubuntu do you have? Maybe your
lsscsi command doesn't support the -s option.– Mark Plotnick
Sep 18 at 19:42
What release of Ubuntu do you have? Maybe your
lsscsi command doesn't support the -s option.– Mark Plotnick
Sep 18 at 19:42
oh sorry, I did use -s and it showed no size either. when I did the --list, it showed the list as above. Just no size shown.
– netrox
Sep 18 at 20:13
oh sorry, I did use -s and it showed no size either. when I did the --list, it showed the list as above. Just no size shown.
– netrox
Sep 18 at 20:13
add a comment |
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Does
lsscsi -sshow a sensible size for the disk?– Mark Plotnick
Sep 18 at 18:57
it did show that they exist but no sizes at all. just each disk with the following list: devoce_blocked=0,iocounterbits, iodone_cnt, scsi_level, state, etc... nothing suggests a size.
– netrox
Sep 18 at 19:40
I need to make sure I understand this... any disks with media that are mounted can be used for dd / sg_dd, right?
– netrox
Sep 18 at 19:40
What release of Ubuntu do you have? Maybe your
lsscsicommand doesn't support the-soption.– Mark Plotnick
Sep 18 at 19:42
oh sorry, I did use -s and it showed no size either. when I did the --list, it showed the list as above. Just no size shown.
– netrox
Sep 18 at 20:13