On Thursday, 1 August 2024 13:38:33 BST Jacques Montier wrote:
> Le jeu. 1 août 2024 à 13:39, Michael <confabul...@kintzios.com> a écrit :
> > On Thursday, 1 August 2024 11:24:29 BST Jacques Montier wrote:
> > > Le mer. 31 juil. 2024 à 18:46, Michael <confabul...@kintzios.com> a
> > 
> > écrit :
> > > > Looks like a possibility, if this started when you ran an update of
> > > > the
> > > > desktop, or changed some cinnamon/gnome settings.  Play around with
> > > > the
> > > > auto-
> > > > mount USB drive options, to see if it corrects itself.
> > > 
> > > Thanks Michael,
> > > 
> > > I did not understand why an usb stick was automounted and not WD usb
> > 
> > drive.
> > 
> > > I saw the one was fat32 formatted and WD ext4.
> > > So, i formatted fat32 another empty WD drive and it worked !
> > > Last version of cinnamon could not automount ext4 drive ? That's weird.
> > > 
> > > Well, it's not so important and in can deal with it.
> > > 
> > > Cheers,
> > > 
> > > Jacques
> > 
> > Unlike ext4, the FAT filesystem does not support Unix file permissions so
> > accessing the fs via userspace is more restricted than FAT.  However, I
> > would
> > expect a different error, like "wrong filesystem type ...".
> > 
> > What do you get in your logs when your run:
> > 
> > ~ $ udisksctl mount -b /dev/sdXx
> > 
> > where Xx are the device and partition numbers?
> 
> I get this :
> 
> My external usb disk is labelled SAUVEGARDE.
> 
> $ udisksctl mount -b /dev/sdf1
> Mounted /dev/sdf1 at /run/media/jacques/SAUVEGARDE
> 
> $ dmesg
> [ 1003.189856] usb 10-2: new SuperSpeed USB device number 5 using xhci_hcd
> [ 1003.205671] usb 10-2: New USB device found, idVendor=1058,
> idProduct=2621, bcdDevice=10.34
> [ 1003.205682] usb 10-2: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [ 1003.205688] usb 10-2: Product: Elements 2621
> [ 1003.205709] usb 10-2: Manufacturer: Western Digital
> [ 1003.205714] usb 10-2: SerialNumber: 575837324139315041324831
> [ 1003.207086] usb-storage 10-2:1.0: USB Mass Storage device detected
> [ 1003.207196] scsi host15: usb-storage 10-2:1.0
> [ 1004.268434] scsi 15:0:0:0: Direct-Access     WD       Elements 2621
>  1034 PQ: 0 ANSI: 6
> [ 1004.268645] sd 15:0:0:0: Attached scsi generic sg7 type 0
> [ 1004.271067] sd 15:0:0:0: [sdf] Spinning up disk...
> [ 1005.291638] ....ready
> [ 1008.461012] sd 15:0:0:0: [sdf] 3906963456 512-byte logical blocks: (2.00
> TB/1.82 TiB)
> [ 1008.461494] sd 15:0:0:0: [sdf] Write Protect is off
> [ 1008.461502] sd 15:0:0:0: [sdf] Mode Sense: 47 00 10 08
> [ 1008.462001] sd 15:0:0:0: [sdf] No Caching mode page found
> [ 1008.462009] sd 15:0:0:0: [sdf] Assuming drive cache: write through
> [ 1008.464128]  sdf: sdf1
> [ 1008.464219] sd 15:0:0:0: [sdf] Attached SCSI disk
> [ 1023.783260] EXT4-fs (sdf1): mounted filesystem
> e26e8fef-8c48-4ad3-8258-10cb8fb47f81 r/w with ordered data mode. Quota
> mode: none.

The above shows user 'jacques' has no problem mounting the ext4 filesystem on 
WD Elements 2621, using udisksctl - this indicates there is no issue with the 
core userspace function.

However, Gnome applications (e.g. Nemo) use GIO, which calls GVFS, which then 
calls udisksctl to do the mounting/unmounting - not sure if FUSE is also 
brought into this mix as if the above stack of virtual fs libraries are not 
enough.

In any case, since you have proven udisks works as it should, the problem 
ought to lie within the Gnome related stack above that.


> Is it possible the owner/access rights of the ext4 fs has changed between
> > the time when it worked and now?
> 
> Well, i really don't know...
> 
> --
> Jacques

Since udisks works, this is not related to a change in a fs access rights 
restriction issue.

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