[Bug 809037] Re: SDCARD mounts read only. Cannot add/delete even as SU

Tue Mar 31 19:03:28 UTC 2015

I have just started seeing this or a simlar problem on Ubuntu 14.04.
Syslog shows that the device has been detected corrected as not being
write protected.

Mar 31 19:12:10 dragon kernel: [ 8964.742391] sd 4:0:0:0: [sdb] 61863936 512-byte logical blocks: (31.6 GB/29.4 GiB)
Mar 31 19:12:10 dragon kernel: [ 8964.743608] sd 4:0:0:0: [sdb] Write Protect is off
Mar 31 19:12:10 dragon kernel: [ 8964.743612] sd 4:0:0:0: [sdb] Mode Sense: 03 00 00 00
Mar 31 19:12:10 dragon kernel: [ 8964.744731] sd 4:0:0:0: [sdb] No Caching mode page found
Mar 31 19:12:10 dragon kernel: [ 8964.744735] sd 4:0:0:0: [sdb] Assuming drive cache: write through
Mar 31 19:12:10 dragon kernel: [ 8964.747886] sd 4:0:0:0: [sdb] No Caching mode page found
Mar 31 19:12:10 dragon kernel: [ 8964.747891] sd 4:0:0:0: [sdb] Assuming drive cache: write through
Mar 31 19:12:10 dragon kernel: [ 8964.748988]  sdb: sdb1
Mar 31 19:12:10 dragon udisksd[2776]: Mounted /dev/sdb1 at /media/roger/Stella on behalf of uid 1000

However /proc/mounts shows that the /dev/sdb1 has been mounted 'ro'.
parted reports that the host device /dev/sdb is read only.

/dev/sdb1 /media/roger/Stella vfat
ro,nosuid,nodev,relatime,uid=1000,gid=1000,fmask=0022,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,showexec,utf8,flush,errors
=remount-ro 0 0

However if I leave the sd card in the reader and reboot then the parition is mounted 'rw', and everything is fine.

Mar 31 19:20:01 dragon kernel: [    3.534021] sd 4:0:0:0: [sdb] 61863936 512-byte logical blocks: (31.6 GB/29.4 GiB)
Mar 31 19:20:01 dragon kernel: [    3.534744] sd 4:0:0:1: [sdc] Attached SCSI removable disk
Mar 31 19:20:01 dragon kernel: [    3.535492] sd 4:0:0:2: [sdd] Attached SCSI removable disk
Mar 31 19:20:01 dragon kernel: [    3.536291] sd 4:0:0:3: [sde] Attached SCSI removable disk
Mar 31 19:20:01 dragon kernel: [    3.537354] sd 4:0:0:0: [sdb] Write Protect is off
Mar 31 19:20:01 dragon kernel: [    3.537359] sd 4:0:0:0: [sdb] Mode Sense: 03 00 00 00
Mar 31 19:20:01 dragon kernel: [    3.538498] sd 4:0:0:0: [sdb] No Caching mode page found
Mar 31 19:20:01 dragon kernel: [    3.538500] sd 4:0:0:0: [sdb] Assuming drive cache: write through
Mar 31 19:20:01 dragon kernel: [    3.541768] random: nonblocking pool is initialized
Mar 31 19:20:01 dragon kernel: [    3.543042] sd 4:0:0:0: [sdb] No Caching mode page found
Mar 31 19:20:01 dragon kernel: [    3.543047] sd 4:0:0:0: [sdb] Assuming drive cache: write through
Mar 31 19:20:01 dragon kernel: [    3.544163]  sdb: sdb1
Mar 31 19:20:01 dragon kernel: [    3.548044] sd 4:0:0:0: [sdb] No Caching mode page found
Mar 31 19:20:01 dragon kernel: [    3.548049] sd 4:0:0:0: [sdb] Assuming drive cache: write through
Mar 31 19:20:01 dragon kernel: [    3.548052] sd 4:0:0:0: [sdb] Attached SCSI removable disk
...
Mar 31 19:20:38 dragon udisksd[2780]: Mounted /dev/sdb1 at /media/roger/Stella on behalf of uid 1000

Disk shows as mounted 'rw' and evrything is fine!

Roger

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https://bugs.launchpad.net/bugs/809037

Title:
  SDCARD mounts read only. Cannot add/delete even as SU

Status in udisks package in Ubuntu:
  Confirmed

Bug description:
  It mounts fine (sometimes I have to pop it out and put it back in but
  no big deal). I see my files, but I can't delete or add anything to
  them. When I try to change the permissions in the menu it doesn't
  effect my ability to modify the files. I am using a Dell inspiron
  1420. It is a MICRO SD in a SD CARD adapter that plugs into the
  laptops built in SD slot.

  IT IS NOT THE WRITE PROTECTION LEVER. I've read some people say that
  the lever gets adjusted when inserted. That is not the case as here. I
  found a way to mount it manually with some special flags to get this
  to work, it was a bit of a pain and I forgot how to do it, but it can
  be over written with some clever bash which isn't what I want to do
  (why you think I'm using Ubuntu and not Gentoo ! lol).

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: udisks 1.0.2-4ubuntu1
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic i686
  NonfreeKernelModules: wl
  Architecture: i386
  CustomUdevRuleFiles: 10-vboxdrv.rules
  Date: Mon Jul 11 18:33:04 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
  MachineType: Dell Inc. Inspiron 1420
  ProcEnviron:
   LANGUAGE=en_CA:en
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=d8eb6007-283c-43f2-abc0-b413c9b56af7 ro quiet splash vt.handoff=7
  SourcePackage: udisks
  Symptom: storage
  Title: No permission to access files on storage device
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/11/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 0DT492
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd07/11/2008:svnDellInc.:pnInspiron1420:pvr:rvnDellInc.:rn0DT492:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Inspiron 1420
  dmi.sys.vendor: Dell Inc.

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