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This article will explain in detail how to use the blockdev command in Linux. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

The blockdev command calls the "ioxtls" function in the command to control the device.

Blockdev calls the block device control program from the command line

Syntax blockdev (option) (parameter) option

-V: print the version number and exit;-Q: quiet mode;-v: details mode;-- setro: read-only;-- setrw: write-only;-- getro: print read-only status, "1" for read-only, "0" for non-read-only;-- getss: print sector size. Usually 521;-- flushbufs: flushes the buffer;-- rereadpt: reread the partition table. Parameter device file name: specifies the device file name of the disk to be operated on.

Instance sets the device to read-only:

Blockdev-whether the setro / dev/hda4 reading device is read-only:

Blockdev-- set getro / dev/hda4 to read / write:

Blockdev-setrw / dev/hda4 on "how to use blockdev commands in Linux" this article is shared here, I hope the above content can be of some help to you, so that you can learn more knowledge, if you think the article is good, please share it for more people to see.

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