On Sun, 2014-05-11 at 18:29 +1000, Jason White wrote:
Andrew Greig <pushin.linux@gmail.com> wrote:
Hi All,
I recently copied some files onto a USB stick, but now, I cannot delete them from the stick as the fs is readonly. I have tried to chmod, but no luck. I have tried to chmod as roo, still no good. Then I remembered that the fstab sometimes mounts removable devices readonly, but the only drives referenced in fstab are the swap, / and /home partitions. Where would I be able to change the permissions for this drive, please? OpenSuse 13.1
It could be due to file system corruption. Have a look at your kernel logs to see whether there's an error message when you mount the file system. Also, when you run the mount command, do you get any error messages?
Hi Jason, Thanks for the reply, here is the tail of dmesg [ 6797.283201] usb 1-1: USB disconnect, device number 2 [ 6916.289618] usb 1-1: new high-speed USB device number 3 using ehci-pci [ 6916.423407] usb 1-1: New USB device found, idVendor=13fe, idProduct=5500 [ 6916.423424] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 6916.423433] usb 1-1: Product: USB DISK 3.0 [ 6916.423442] usb 1-1: Manufacturer: [ 6916.423449] usb 1-1: SerialNumber: 90003658B035F027 [ 6916.427618] usb-storage 1-1:1.0: USB Mass Storage device detected [ 6916.427941] scsi3 : usb-storage 1-1:1.0 [ 6917.432272] scsi 3:0:0:0: Direct-Access USB DISK 3.0 PMAP PQ: 0 ANSI: 6 [ 6917.434522] sd 3:0:0:0: Attached scsi generic sg2 type 0 [ 6918.136636] sd 3:0:0:0: [sdb] 31555584 512-byte logical blocks: (16.1 GB/15.0 GiB) [ 6918.137786] sd 3:0:0:0: [sdb] Write Protect is off [ 6918.137803] sd 3:0:0:0: [sdb] Mode Sense: 23 00 00 00 [ 6918.139522] sd 3:0:0:0: [sdb] No Caching mode page found [ 6918.139542] sd 3:0:0:0: [sdb] Assuming drive cache: write through [ 6918.145683] sd 3:0:0:0: [sdb] No Caching mode page found [ 6918.145702] sd 3:0:0:0: [sdb] Assuming drive cache: write through [ 6918.147147] sdb: sdb1 [ 6918.151671] sd 3:0:0:0: [sdb] No Caching mode page found [ 6918.151687] sd 3:0:0:0: [sdb] Assuming drive cache: write through [ 6918.151700] sd 3:0:0:0: [sdb] Attached SCSI removable disk [ 6931.390696] FAT-fs (sdb1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. [ 6933.198312] FAT-fs (sdb1): error, fat_get_cluster: invalid cluster chain (i_pos 0) [ 6933.198326] FAT-fs (sdb1): Filesystem has been set read-only [ 6964.187889] sdb: detected capacity change from 16156459008 to 0 The last line is a bit disturbing. I have read the man on fsck, but I am struggling with the syntax. linux-sbl1:/home/andrewg # lsusb Bus 001 Device 003: ID 13fe:5500 Kingston Technology Company Inc. Bus 002 Device 002: ID 0c45:6321 Microdia Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub I do not want to run it in parallel with the root filesystem, I tried to nominate /dev/sdb1 and when that didn't work tried /dev/USB0 ... nothing. Could you recommend the syntax, please? Andrew