plugging in USB and no disk there

[Jerry Geis]

On Fri, Oct 22, 2021 at 11:24 AM Colin Law <clanlaw at gmail.com> wrote:

> On Fri, 22 Oct 2021 at 15:54, Jerry Geis <jerry.geis at gmail.com> wrote:
> >
> > I plug in a USB disk (4T) disk and dmesg shows me this:
> >
> > [ 9528.526871] sd 0:0:0:0: [sda] Sector size 0 reported, assuming 512.
> > [ 9528.533942] sd 0:0:0:0: [sda] 34359738369 512-byte logical blocks:
> (17.6 TB/16.0 TiB)
> > [ 9528.533956] sd 0:0:0:0: [sda] 0-byte physical blocks
> > [ 9528.536171] sd 0:0:0:0: [sda] Write Protect is off
> > [ 9528.536182] sd 0:0:0:0: [sda] Mode Sense: 37 00 00 08
> > [ 9528.540860] sd 0:0:0:0: [sda] Write cache: enabled, read cache:
> enabled, doesn't support DPO or FUA
> > [ 9528.544490] sd 0:0:0:0: [sda] Optimal transfer size 33553920 bytes
> not a multiple of physical block size (0 bytes)
> > [ 9534.556310] sd 0:0:0:0: [sda] Unsupported sector size 8422320.
> > [ 9534.563335] sd 0:0:0:0: [sda] 0 512-byte logical blocks: (0 B/0 B)
> > [ 9534.563352] sd 0:0:0:0: [sda] 8422320-byte physical blocks
> > [ 9534.572373] sda: detected capacity change from 34359738369 to 0
> > [ 9540.605521] sd 0:0:0:0: [sda] Unsupported sector size 8422320.
> > [ 9540.621279] sd 0:0:0:0: [sda] Attached SCSI disk
>
> Is it formatted?  If not, try running gparted and format it.
>
> Does it work in any other system?
>
> Colin
>
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gparted /dev/sda

says no device detected.

but dmesg shows it as /dev/sda  ?

jerry
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