Re: mount_ffs Permission denied as root

On 1/1/19 11:53 PM, Otto Moerbeek wrote:
> On Tue, Jan 01, 2019 at 07:25:14PM -0700, mymlact@gmx.com wrote:
>
>> I just did a new install of current AMD64 from the 12/31/2018 snapshot and
>> having some permission issues mounting a usb drive, as root.  I have been
>> able to mount other usb drives just fine. (Also tried with the 12/29
>> snapshots as well, same issue)
>>
>> #disklabel sd4
>> # /dev/rsd4c:
>> type: SCSI
>> disk: SCSI disk
>> label: Survivor 3.0
>> duid: 70568afde7f5a241
>> flags:
>> bytes/sector: 512
>> sectors/track: 63
>> tracks/cylinder: 255
>> sectors/cylinder: 16065
>> cylinders: 15542
>> total sectors: 249692160
>> boundstart: 64
>> boundend: 249682230
>> drivedata: 0
>>
>> 16 partitions:
>> #                size           offset  fstype [fsize bsize   cpg]
>>   a:        249682144               64  4.2BSD   2048 16384 12958
>>   c:        249692160                0  unused
>>
>>
>> curry:/root:#mount -v /dev/sd4a /mnt/usb0
>> mount_ffs: /dev/sd4a on /mnt/usb0: Permission denied
>>
>> I don't see any kind of messages in the logs related to the error.
> device r/o switch is set to r/o?
> /mnt/usb0 is r/o?
>
> If that's not it, please ktrace the command and show kdump
>
> -Otto

Hi Otto,

There is no hw switch on this usb drive, I'm not sure why it's showing
up as read only.

I attached a ktrace for both the disklabel command as well as an ls on
the drive after I was able to mount it read only.

Thanks,

Thomas