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This is a low-level hardware solution as opposed to a permissions-based solution.

On a Unix system, you can use hdparm to set SATA/IDE device parameters. One of those parameters is a read-only value.

Here is an example assuming your device is scsi device b (sdb):

Turn on read-only value (CAREFUL!)

hdparm -r1 /dev/sdb

Turn off read-only value

hdparm -r0 /dev/sdb

Read the current value

hdparm -r /dev/sdb

from man hdparm

-r Get/set device readonly flag (DANGEROUS to set)

 

-R Get/set device write-read-verify flag

This is a low-level hardware solution as opposed to a permissions-based solution.

On a Unix system, you can use hdparm to set SATA/IDE device parameters. One of those parameters is a read-only value.

Here is an example assuming your device is scsi device b (sdb):

Turn on read-only value (CAREFUL!)

hdparm -r1 /dev/sdb

Turn off read-only value

hdparm -r0 /dev/sdb

Read the current value

hdparm -r /dev/sdb

from man hdparm

-r Get/set device readonly flag (DANGEROUS to set)

 

-R Get/set device write-read-verify flag

This is a low-level hardware solution as opposed to a permissions-based solution.

On a Unix system, you can use hdparm to set SATA/IDE device parameters. One of those parameters is a read-only value.

Here is an example assuming your device is scsi device b (sdb):

Turn on read-only value (CAREFUL!)

hdparm -r1 /dev/sdb

Turn off read-only value

hdparm -r0 /dev/sdb

Read the current value

hdparm -r /dev/sdb

from man hdparm

-r Get/set device readonly flag (DANGEROUS to set)

-R Get/set device write-read-verify flag

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Jonathan Komar
Jonathan Komar
  • 532
  • 4
  • 16

This is a low-level hardware solution as opposed to a permissions-based solution.

On a Unix system, you can use hdparm to set SATA/IDE device parameters. One of those parameters is a read-only value.

Here is an example assuming your device is scsi device b (sdb):

Turn on read-only value (CAREFUL!)

hdparm -r1 /dev/sdb

Turn off read-only value

hdparm -r0 /dev/sdb

Read the current value

hdparm -r /dev/sdb

from man hdparm

-r Get/set device readonly flag (DANGEROUS to set)

-R Get/set device write-read-verify flag

On a Unix system, you can use hdparm to set SATA/IDE device parameters. One of those parameters is a read-only value.

Here is an example assuming your device is scsi device b (sdb):

Turn on read-only value (CAREFUL!)

hdparm -r1 /dev/sdb

Turn off read-only value

hdparm -r0 /dev/sdb

Read the current value

hdparm -r /dev/sdb

from man hdparm

-r Get/set device readonly flag (DANGEROUS to set)

-R Get/set device write-read-verify flag

This is a low-level hardware solution as opposed to a permissions-based solution.

On a Unix system, you can use hdparm to set SATA/IDE device parameters. One of those parameters is a read-only value.

Here is an example assuming your device is scsi device b (sdb):

Turn on read-only value (CAREFUL!)

hdparm -r1 /dev/sdb

Turn off read-only value

hdparm -r0 /dev/sdb

Read the current value

hdparm -r /dev/sdb

from man hdparm

-r Get/set device readonly flag (DANGEROUS to set)

-R Get/set device write-read-verify flag

Source Link
Jonathan Komar
Jonathan Komar
  • 532
  • 4
  • 16

On a Unix system, you can use hdparm to set SATA/IDE device parameters. One of those parameters is a read-only value.

Here is an example assuming your device is scsi device b (sdb):

Turn on read-only value (CAREFUL!)

hdparm -r1 /dev/sdb

Turn off read-only value

hdparm -r0 /dev/sdb

Read the current value

hdparm -r /dev/sdb

from man hdparm

-r Get/set device readonly flag (DANGEROUS to set)

-R Get/set device write-read-verify flag