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nourdine
Asked: 2014-12-10 12:46:13 +0800 CST

How do you mount a hard drive in RW mode?

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I have an external HD that, when plugged in, is accessible at: /media/myusername/79039342-7793-4990-9eae-95ef3d4a9331.

I figured out it's the drive called /dev/sdb (with a single partition in it sdb1).

Fine!

Thing is, it is not writeable.

If I try:

sudo mount -o remount,uid=1000,gid=1000,rw /dev/sdb1

I get:

/media/myusername/79039342-7793-4990-9eae-95ef3d4a9331 not mounted or bad option

So the question is: how do I make it writeable?

hard-drive

2 Answers

  1. First, when it's auto-mounted, run mount and look for the /dev/sdb1 and see how it's mounted now. If there's a ro it's read-only, or a rw means you're almost done :)

    And a lsblk is a prettier way to see if & where drives are mounted too. sudo blkid may show some more useful info as well, possibly about FS types.

    It may be mounted rw now, but the permissions won't let you write to it. May need to chown to get write permissions.

    Or if it is ro, try a basic sudo mount -o remount,rw /dev/sdb1, maybe it's erroring on the other options.

    If that doesn't work, then my only other idea now is - is it a writeable filesystem? Or a ro-only system like squashfs or iso9660/cd format? gparted should show what partitions & FS's are what.

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  2. First, I would unmount it.

    umount /dev/sdb1

    Then, I'd remount it

    sudo mount /dev/sdb1 /home/user/driveb1 rw  0    2

    I would then check to be sure it was remounted

    mount
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