Re: [gentoo-user] USB permission/owner - change not allowed as root
On Tue, 31 Dec 2013 19:14:36 -0700, Joseph wrote:
If I remove the mounting line from fstab they mount with correct
permission joseph:users but the mount point is reference as UUID and
it makes it hard to reference it in bash scripts.
MOUNTPOINT=$(mount | awk '/^\/dev\/sdb1/ {print $3}')
Then you can let the automounter take care of everything for you. If you
use /etc/fstab, the device is mounted as root, but because you have a
mixture of filesystems you can specify the correct options for one
without breaking another. It is far simpler to let the automounter take
care of all of this and just handle the movable mount point.
There is probably a udisks option that sets the mount point to the device
name rather than the volume name or UUID, good luck finding it :)
--
Neil Bothwick
Exercise daily. Eat wisely. Die anyway.
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Re: [gentoo-user] USB permission/owner - change not allowed as root
On 31/12/2013 04:30, waben...@gmail.com wrote: Am Dienstag, 31.12.2013 um 01:38 schrieb Neil Bothwick n...@digimed.co.uk: On Mon, 30 Dec 2013 17:52:56 +0100, waben...@gmail.com wrote: For some reason or another the system doesn't like my fstab entry: /dev/sdb1 /media/stickauto noauto,rw,users 0 0 AFAIK the option to permit user mount is user and not users. Could this cause the problem? user and users are both valid, slightly different, options. THX for the info, I didn't know that. It's all fully described in the mount man page. You should read that man page to discover what mount can do. -- Alan McKinnon alan.mckin...@gmail.com
Re: [gentoo-user] USB permission/owner - change not allowed as root
On 30/12/2013 19:22, Joseph wrote: On 12/30/13 17:36, Randolph Maaßen wrote: [snip] With the line in fstab: /dev/sdb1 /media/stickautonoauto,rw,users 0 0 Some USB stick are mounted as root:root and I can not change that even as root. When I remove this like from fstab. The USB stick are mounting correctly as joseph:users owner except they have different mounting location which I don't like. -- Joseph You can specify the user/group that mounts a device with some mount options. I think they are uid=username/gid=groupname but I'm not sure and unfortunatly not on my Linux box at the moment. I've tried in fstab: /dev/sdb1 /media/stickauto noauto,uid=1000,gid=100,umask=0770 0 but I'm getting an error: Error mounting system-managed device /dev/sdb1: Command-line `mount /media/stick' exited with non-zero exit status 32: mount: wrong fs type, bad option, bad superblock on /dev/sdb1, What am I missing? mount cannot auto-identify the fs type on your USB stick, or /dev/sdb1 is the wrong node. blkid as Bruce mentioned will help identify what is really going on. Also, tail -f /var/log/messages, insert the stick, and post the entries that produces. -- Alan McKinnon alan.mckin...@gmail.com
Re: [gentoo-user] USB permission/owner - change not allowed as root
On 12/31/13 10:49, Alan McKinnon wrote: On 30/12/2013 19:22, Joseph wrote: On 12/30/13 17:36, Randolph Maaßen wrote: [snip] With the line in fstab: /dev/sdb1 /media/stickautonoauto,rw,users 0 0 Some USB stick are mounted as root:root and I can not change that even as root. When I remove this like from fstab. The USB stick are mounting correctly as joseph:users owner except they have different mounting location which I don't like. -- Joseph You can specify the user/group that mounts a device with some mount options. I think they are uid=username/gid=groupname but I'm not sure and unfortunatly not on my Linux box at the moment. I've tried in fstab: /dev/sdb1 /media/stickauto noauto,uid=1000,gid=100,umask=0770 0 but I'm getting an error: Error mounting system-managed device /dev/sdb1: Command-line `mount /media/stick' exited with non-zero exit status 32: mount: wrong fs type, bad option, bad superblock on /dev/sdb1, What am I missing? mount cannot auto-identify the fs type on your USB stick, or /dev/sdb1 is the wrong node. blkid as Bruce mentioned will help identify what is really going on. Also, tail -f /var/log/messages, insert the stick, and post the entries that produces. -- Alan McKinnon alan.mckin...@gmail.com Thank you for the hints, here is the output of: tail -f /var/log/messages My line if fstab is: /dev/sdb1 /media/stick auto noauto,rw,user and this USB below file are mounted as root:root (not joseph:users) Dec 31 09:02:16 syscon7 kernel: [231771.029376] usb 8-1: new high-speed USB device number 33 using xhci_hcd Dec 31 09:02:16 syscon7 kernel: [231771.042189] usb 8-1: default language 0x0409 Dec 31 09:02:16 syscon7 kernel: [231771.043442] usb 8-1: udev 33, busnum 8, minor = 928 Dec 31 09:02:16 syscon7 kernel: [231771.043445] usb 8-1: New USB device found, idVendor=058f, idProduct=6366 Dec 31 09:02:16 syscon7 kernel: [231771.043447] usb 8-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Dec 31 09:02:16 syscon7 kernel: [231771.043448] usb 8-1: Product: Mass Storage Device Dec 31 09:02:16 syscon7 kernel: [231771.043450] usb 8-1: Manufacturer: Generic Dec 31 09:02:16 syscon7 kernel: [231771.043451] usb 8-1: SerialNumber: 058F63666433 Dec 31 09:02:16 syscon7 kernel: [231771.043515] usb 8-1: usb_probe_device Dec 31 09:02:16 syscon7 kernel: [231771.043517] usb 8-1: configuration #1 chosen from 1 choice Dec 31 09:02:16 syscon7 kernel: [231771.043614] usb 8-1: Successful Endpoint Configure command Dec 31 09:02:16 syscon7 kernel: [231771.043689] usb 8-1: adding 8-1:1.0 (config #1, interface 0) Dec 31 09:02:16 syscon7 kernel: [231771.043722] usb-storage 8-1:1.0: usb_probe_interface Dec 31 09:02:16 syscon7 kernel: [231771.043726] usb-storage 8-1:1.0: usb_probe_interface - got id Dec 31 09:02:16 syscon7 kernel: [231771.043728] usb-storage 8-1:1.0: USB Mass Storage device detected Dec 31 09:02:16 syscon7 kernel: [231771.043787] scsi41 : usb-storage 8-1:1.0 Dec 31 09:02:17 syscon7 kernel: [231772.175846] scsi 41:0:0:0: Direct-Access Multiple Card Reader 1.00 PQ: 0 ANSI: 0 Dec 31 09:02:17 syscon7 kernel: [231772.176055] sd 41:0:0:0: Attached scsi generic sg2 type 0 Dec 31 09:02:18 syscon7 kernel: [231772.836523] sd 41:0:0:0: [sdb] 62333952 512-byte logical blocks: (31.9 GB/29.7 GiB) Dec 31 09:02:18 syscon7 kernel: [231772.836932] sd 41:0:0:0: [sdb] Write Protect is off Dec 31 09:02:18 syscon7 kernel: [231772.836934] sd 41:0:0:0: [sdb] Mode Sense: 03 00 00 00 Dec 31 09:02:18 syscon7 kernel: [231772.837316] sd 41:0:0:0: [sdb] No Caching mode page present Dec 31 09:02:18 syscon7 kernel: [231772.837318] sd 41:0:0:0: [sdb] Assuming drive cache: write through Dec 31 09:02:18 syscon7 kernel: [231772.838812] sd 41:0:0:0: [sdb] No Caching mode page present Dec 31 09:02:18 syscon7 kernel: [231772.838815] sd 41:0:0:0: [sdb] Assuming drive cache: write through Dec 31 09:02:18 syscon7 kernel: [231772.846512] sdb: sdb1 Dec 31 09:02:18 syscon7 kernel: [231772.848062] sd 41:0:0:0: [sdb] No Caching mode page present Dec 31 09:02:18 syscon7 kernel: [231772.848065] sd 41:0:0:0: [sdb] Assuming drive cache: write through Dec 31 09:02:18 syscon7 kernel: [231772.848067] sd 41:0:0:0: [sdb] Attached SCSI removable disk Dec 31 09:02:25 syscon7 udisksd[3624]: Mounted /dev/sdb1 (system) at /media/stick on behalf of uid 1000 -- Joseph
Re: [gentoo-user] USB permission/owner - change not allowed as root
On 31/12/2013 18:06, Joseph wrote: On 12/31/13 10:49, Alan McKinnon wrote: On 30/12/2013 19:22, Joseph wrote: On 12/30/13 17:36, Randolph Maaßen wrote: [snip] With the line in fstab: /dev/sdb1 /media/stickauto noauto,rw,users 0 0 Some USB stick are mounted as root:root and I can not change that even as root. When I remove this like from fstab. The USB stick are mounting correctly as joseph:users owner except they have different mounting location which I don't like. -- Joseph You can specify the user/group that mounts a device with some mount options. I think they are uid=username/gid=groupname but I'm not sure and unfortunatly not on my Linux box at the moment. I've tried in fstab: /dev/sdb1 /media/stickauto noauto,uid=1000,gid=100,umask=0770 0 but I'm getting an error: Error mounting system-managed device /dev/sdb1: Command-line `mount /media/stick' exited with non-zero exit status 32: mount: wrong fs type, bad option, bad superblock on /dev/sdb1, What am I missing? mount cannot auto-identify the fs type on your USB stick, or /dev/sdb1 is the wrong node. blkid as Bruce mentioned will help identify what is really going on. Also, tail -f /var/log/messages, insert the stick, and post the entries that produces. -- Alan McKinnon alan.mckin...@gmail.com Thank you for the hints, here is the output of: tail -f /var/log/messages My line if fstab is: /dev/sdb1/media/stickauto noauto,rw,user and this USB below file are mounted as root:root (not joseph:users) Dec 31 09:02:16 syscon7 kernel: [231771.029376] usb 8-1: new high-speed USB device number 33 using xhci_hcd Dec 31 09:02:16 syscon7 kernel: [231771.042189] usb 8-1: default language 0x0409 Dec 31 09:02:16 syscon7 kernel: [231771.043442] usb 8-1: udev 33, busnum 8, minor = 928 Dec 31 09:02:16 syscon7 kernel: [231771.043445] usb 8-1: New USB device found, idVendor=058f, idProduct=6366 Dec 31 09:02:16 syscon7 kernel: [231771.043447] usb 8-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Dec 31 09:02:16 syscon7 kernel: [231771.043448] usb 8-1: Product: Mass Storage Device Dec 31 09:02:16 syscon7 kernel: [231771.043450] usb 8-1: Manufacturer: Generic Dec 31 09:02:16 syscon7 kernel: [231771.043451] usb 8-1: SerialNumber: 058F63666433 Dec 31 09:02:16 syscon7 kernel: [231771.043515] usb 8-1: usb_probe_device Dec 31 09:02:16 syscon7 kernel: [231771.043517] usb 8-1: configuration #1 chosen from 1 choice Dec 31 09:02:16 syscon7 kernel: [231771.043614] usb 8-1: Successful Endpoint Configure command Dec 31 09:02:16 syscon7 kernel: [231771.043689] usb 8-1: adding 8-1:1.0 (config #1, interface 0) Dec 31 09:02:16 syscon7 kernel: [231771.043722] usb-storage 8-1:1.0: usb_probe_interface Dec 31 09:02:16 syscon7 kernel: [231771.043726] usb-storage 8-1:1.0: usb_probe_interface - got id Dec 31 09:02:16 syscon7 kernel: [231771.043728] usb-storage 8-1:1.0: USB Mass Storage device detected Dec 31 09:02:16 syscon7 kernel: [231771.043787] scsi41 : usb-storage 8-1:1.0 Dec 31 09:02:17 syscon7 kernel: [231772.175846] scsi 41:0:0:0: Direct-Access Multiple Card Reader 1.00 PQ: 0 ANSI: 0 Dec 31 09:02:17 syscon7 kernel: [231772.176055] sd 41:0:0:0: Attached scsi generic sg2 type 0 Dec 31 09:02:18 syscon7 kernel: [231772.836523] sd 41:0:0:0: [sdb] 62333952 512-byte logical blocks: (31.9 GB/29.7 GiB) Dec 31 09:02:18 syscon7 kernel: [231772.836932] sd 41:0:0:0: [sdb] Write Protect is off Dec 31 09:02:18 syscon7 kernel: [231772.836934] sd 41:0:0:0: [sdb] Mode Sense: 03 00 00 00 Dec 31 09:02:18 syscon7 kernel: [231772.837316] sd 41:0:0:0: [sdb] No Caching mode page present Dec 31 09:02:18 syscon7 kernel: [231772.837318] sd 41:0:0:0: [sdb] Assuming drive cache: write through Dec 31 09:02:18 syscon7 kernel: [231772.838812] sd 41:0:0:0: [sdb] No Caching mode page present Dec 31 09:02:18 syscon7 kernel: [231772.838815] sd 41:0:0:0: [sdb] Assuming drive cache: write through Dec 31 09:02:18 syscon7 kernel: [231772.846512] sdb: sdb1 Dec 31 09:02:18 syscon7 kernel: [231772.848062] sd 41:0:0:0: [sdb] No Caching mode page present Dec 31 09:02:18 syscon7 kernel: [231772.848065] sd 41:0:0:0: [sdb] Assuming drive cache: write through Dec 31 09:02:18 syscon7 kernel: [231772.848067] sd 41:0:0:0: [sdb] Attached SCSI removable disk Dec 31 09:02:25 syscon7 udisksd[3624]: Mounted /dev/sdb1 (system) at /media/stick on behalf of uid 1000 That looks normal. Having lines in fstab for removable media is not a good solution in general - insert two sticks and the second one doesn't have a matching line (it isn't /dev/sdb1) That's why automounter apps were developed so you can get the config out of fstab and replace it with something more generic somewhere else. udisks is the app you are suing for this and it's the most common solution chosen by most DEs. When was udisks last updated on your system? What
Re: [gentoo-user] USB permission/owner - change not allowed as root
Am Dienstag, 31.12.2013 um 10:31 schrieb Alan McKinnon alan.mckin...@gmail.com: On 31/12/2013 04:30, waben...@gmail.com wrote: Am Dienstag, 31.12.2013 um 01:38 schrieb Neil Bothwick n...@digimed.co.uk: On Mon, 30 Dec 2013 17:52:56 +0100, waben...@gmail.com wrote: For some reason or another the system doesn't like my fstab entry: /dev/sdb1 /media/stickauto noauto,rw,users 0 0 AFAIK the option to permit user mount is user and not users. Could this cause the problem? user and users are both valid, slightly different, options. THX for the info, I didn't know that. It's all fully described in the mount man page. You should read that man page to discover what mount can do. THX for the hint. It's always good to RTFM. :-) In the meantime I read the man page and now I understand the difference between the users and the user option. But as I'm the only physical user on my computer it doesn't makes a difference for me.
Re: [gentoo-user] USB permission/owner - change not allowed as root
On Tue, Dec 31, 2013 at 09:06:38AM -0700, Joseph wrote: Thank you for the hints, here is the output of: tail -f /var/log/messages My line if fstab is: /dev/sdb1 /media/stickautonoauto,rw,user and this USB below file are mounted as root:root (not joseph:users) Dec 31 09:02:16 syscon7 kernel: [231771.029376] usb 8-1: new high-speed USB device number 33 using xhci_hcd Dec 31 09:02:16 syscon7 kernel: [231771.042189] usb 8-1: default language 0x0409 Dec 31 09:02:16 syscon7 kernel: [231771.043442] usb 8-1: udev 33, busnum 8, minor = 928 Dec 31 09:02:16 syscon7 kernel: [231771.043445] usb 8-1: New USB device found, idVendor=058f, idProduct=6366 Dec 31 09:02:16 syscon7 kernel: [231771.043447] usb 8-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Dec 31 09:02:16 syscon7 kernel: [231771.043448] usb 8-1: Product: Mass Storage Device Dec 31 09:02:16 syscon7 kernel: [231771.043450] usb 8-1: Manufacturer: Generic Dec 31 09:02:16 syscon7 kernel: [231771.043451] usb 8-1: SerialNumber: 058F63666433 Dec 31 09:02:16 syscon7 kernel: [231771.043515] usb 8-1: usb_probe_device Dec 31 09:02:16 syscon7 kernel: [231771.043517] usb 8-1: configuration #1 chosen from 1 choice Dec 31 09:02:16 syscon7 kernel: [231771.043614] usb 8-1: Successful Endpoint Configure command Dec 31 09:02:16 syscon7 kernel: [231771.043689] usb 8-1: adding 8-1:1.0 (config #1, interface 0) Dec 31 09:02:16 syscon7 kernel: [231771.043722] usb-storage 8-1:1.0: usb_probe_interface Dec 31 09:02:16 syscon7 kernel: [231771.043726] usb-storage 8-1:1.0: usb_probe_interface - got id Dec 31 09:02:16 syscon7 kernel: [231771.043728] usb-storage 8-1:1.0: USB Mass Storage device detected Dec 31 09:02:16 syscon7 kernel: [231771.043787] scsi41 : usb-storage 8-1:1.0 Dec 31 09:02:17 syscon7 kernel: [231772.175846] scsi 41:0:0:0: Direct-Access Multiple Card Reader 1.00 PQ: 0 ANSI: 0 Dec 31 09:02:17 syscon7 kernel: [231772.176055] sd 41:0:0:0: Attached scsi generic sg2 type 0 Dec 31 09:02:18 syscon7 kernel: [231772.836523] sd 41:0:0:0: [sdb] 62333952 512-byte logical blocks: (31.9 GB/29.7 GiB) Dec 31 09:02:18 syscon7 kernel: [231772.836932] sd 41:0:0:0: [sdb] Write Protect is off Dec 31 09:02:18 syscon7 kernel: [231772.836934] sd 41:0:0:0: [sdb] Mode Sense: 03 00 00 00 Dec 31 09:02:18 syscon7 kernel: [231772.837316] sd 41:0:0:0: [sdb] No Caching mode page present Dec 31 09:02:18 syscon7 kernel: [231772.837318] sd 41:0:0:0: [sdb] Assuming drive cache: write through Dec 31 09:02:18 syscon7 kernel: [231772.838812] sd 41:0:0:0: [sdb] No Caching mode page present Dec 31 09:02:18 syscon7 kernel: [231772.838815] sd 41:0:0:0: [sdb] Assuming drive cache: write through Dec 31 09:02:18 syscon7 kernel: [231772.846512] sdb: sdb1 Dec 31 09:02:18 syscon7 kernel: [231772.848062] sd 41:0:0:0: [sdb] No Caching mode page present Dec 31 09:02:18 syscon7 kernel: [231772.848065] sd 41:0:0:0: [sdb] Assuming drive cache: write through Dec 31 09:02:18 syscon7 kernel: [231772.848067] sd 41:0:0:0: [sdb] Attached SCSI removable disk Dec 31 09:02:25 syscon7 udisksd[3624]: Mounted /dev/sdb1 (system) at /media/stick on behalf of uid 1000 -- Joseph The blkid output would have shown this device, it's UUID, and filesystem. At any rate, for my flash drives I want them mounted with perms for rw for user mingdao, so I put something like this in /etc/fstab: baruch ~ # blkid /dev/sdc1 /dev/sdc1: LABEL=AMD UUID=CA00-9136 TYPE=vfat baruch ~ # grep CA00-9136 /etc/fstab UUID=CA00-9136 /AMDvfat noauto,users,rw,gid=1000,dmask=0002,fmask=0113 0 0 Different for NTFS, of course. And btw, I don't automount anything anything that is plugged in. Just my preference. As Alan mentioned, man mount would be a good read; as well as man fstab. And, did I give you a link to an article on file permissions? The difference between user and users mean simply that with user only the user who mounted the device can unmount it; with users any user can unmount it, not just the user who mounted it. Cheers, Bruce -- List replies preferred. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? Don't top-post: http://en.wikipedia.org/wiki/Top_post#Top-posting
Re: [gentoo-user] USB permission/owner - change not allowed as root
On 12/31/13 12:03, Bruce Hill wrote: [snip] The blkid output would have shown this device, it's UUID, and filesystem. At any rate, for my flash drives I want them mounted with perms for rw for user mingdao, so I put something like this in /etc/fstab: baruch ~ # blkid /dev/sdc1 /dev/sdc1: LABEL=AMD UUID=CA00-9136 TYPE=vfat baruch ~ # grep CA00-9136 /etc/fstab UUID=CA00-9136 /AMDvfat noauto,users,rw,gid=1000,dmask=0002,fmask=0113 0 0 Different for NTFS, of course. And btw, I don't automount anything anything that is plugged in. Just my preference. As Alan mentioned, man mount would be a good read; as well as man fstab. And, did I give you a link to an article on file permissions? The difference between user and users mean simply that with user only the user who mounted the device can unmount it; with users any user can unmount it, not just the user who mounted it. Cheers, Bruce Thanks for the input. In my case blkid is not showing any LABEL It depends on what USB I insert: #blkid /dev/sdb1 /dev/sdb1: UUID=2f5fc53e-4f4c-4e74-b9c4-fca316b47fea TYPE=ext2 #blkid /dev/sdb1: UUID=3136-3934 TYPE=vfat so it would be hard to specify UUID in fstab for each momory card I insert. In the past the line in fstab: /dev/sdb1 /media/stickautonoauto,rw,users 0 0 mounted both ext2 and vfat USB as /media/stick so it is easier to reference to it in scripts. But after recent update if I have this line in fstab the ext2 USB is mounted as joseph:users but vfat USB is mounted as root:root If I remove the mounting line from fstab they mount with correct permission joseph:users but the mount point is reference as UUID and it makes it hard to reference it in bash scripts. -- Joseph
Re: [gentoo-user] USB permission/owner - change not allowed as root
On 30/12/2013 09:51, Edward M wrote: On Sun, 29 Dec 2013 19:42:33 -0700 Joseph syscon...@gmail.com wrote: After recent upgrade when I mount my USB and try as root: chown joseph:users /media/stick/Ancient-Electricity_new.ppt chown: changing ownership of ‘/media/stick/Ancient-Electricity_new.ppt’: Operation not permitted file ownership is: -rwxr-xr-x 1 root root 5796864 Mar 6 2013 Ancient-Electricity_new.ppt I too ran the chown command on my USB flash and got the same response as you did: localhost001 media # chown cru:users flash-drive1/ chown: changing ownership of ‘flash-drive1/’: Operation not permitted drwxr-xr-x 7 root root 16384 Dec 31 1969 flash-drive1 Don't know what to tell you. interestingmy says Dec 31 1969. Read the man page for mount, section vfat. You can't change the owner as FAT doesn't have a concept of owner, so it's simulated at mount time. You can't change it at runtime. To change it you have to umount the device and remount it using the appropriate option, all in the man page -- Alan McKinnon alan.mckin...@gmail.com
Re: [gentoo-user] USB permission/owner - change not allowed as root
On Mon, 30 Dec 2013 10:38:03 +0200 Alan McKinnon alan.mckin...@gmail.com wrote: On 30/12/2013 09:51, Edward M wrote: On Sun, 29 Dec 2013 19:42:33 -0700 Joseph syscon...@gmail.com wrote: After recent upgrade when I mount my USB and try as root: chown joseph:users /media/stick/Ancient-Electricity_new.ppt chown: changing ownership of ‘/media/stick/Ancient-Electricity_new.ppt’: Operation not permitted file ownership is: -rwxr-xr-x 1 root root 5796864 Mar 6 2013 Ancient-Electricity_new.ppt I too ran the chown command on my USB flash and got the same response as you did: localhost001 media # chown cru:users flash-drive1/ chown: changing ownership of ‘flash-drive1/’: Operation not permitted drwxr-xr-x 7 root root 16384 Dec 31 1969 flash-drive1 Don't know what to tell you. interestingmy says Dec 31 1969. Read the man page for mount, section vfat. You can't change the owner as FAT doesn't have a concept of owner, so it's simulated at mount time. You can't change it at runtime. To change it you have to umount the device and remount it using the appropriate option, all in the man page Thank you for the explanation. I appreciate it a lot. I will read the man page for mount and experiment a little.
Re: [gentoo-user] USB permission/owner - change not allowed as root
On 12/30/13 10:38, Alan McKinnon wrote: [snip] I too ran the chown command on my USB flash and got the same response as you did: localhost001 media # chown cru:users flash-drive1/ chown: changing ownership of ‘flash-drive1/’: Operation not permitted drwxr-xr-x 7 root root 16384 Dec 31 1969 flash-drive1 Don't know what to tell you. interestingmy says Dec 31 1969. Read the man page for mount, section vfat. You can't change the owner as FAT doesn't have a concept of owner, so it's simulated at mount time. You can't change it at runtime. To change it you have to umount the device and remount it using the appropriate option, all in the man page I don't think it has anything to do with FAT. Everything was working just find on my system before upgrade. With the line in fstab: /dev/sdb1 /media/stickautonoauto,rw,users 0 0 Some USB stick are mounted as root:root and I can not change that even as root. When I remove this like from fstab. The USB stick are mounting correctly as joseph:users owner except they have different mounting location which I don't like. -- Joseph
Re: [gentoo-user] USB permission/owner - change not allowed as root
2013/12/30 Joseph syscon...@gmail.com: On 12/30/13 10:38, Alan McKinnon wrote: [snip] I too ran the chown command on my USB flash and got the same response as you did: localhost001 media # chown cru:users flash-drive1/ chown: changing ownership of ‘flash-drive1/’: Operation not permitted drwxr-xr-x 7 root root 16384 Dec 31 1969 flash-drive1 Don't know what to tell you. interestingmy says Dec 31 1969. Read the man page for mount, section vfat. You can't change the owner as FAT doesn't have a concept of owner, so it's simulated at mount time. You can't change it at runtime. To change it you have to umount the device and remount it using the appropriate option, all in the man page I don't think it has anything to do with FAT. Everything was working just find on my system before upgrade. With the line in fstab: /dev/sdb1 /media/stickautonoauto,rw,users 0 0 Some USB stick are mounted as root:root and I can not change that even as root. When I remove this like from fstab. The USB stick are mounting correctly as joseph:users owner except they have different mounting location which I don't like. -- Joseph You can specify the user/group that mounts a device with some mount options. I think they are uid=username/gid=groupname but I'm not sure and unfortunatly not on my Linux box at the moment. -- Mit freundlichen Grüßen / Best regards Randolph Maaßen
Re: [gentoo-user] USB permission/owner - change not allowed as root
Am Sonntag, 29.12.2013 um 21:12 schrieb Joseph syscon...@gmail.com: For some reason or another the system doesn't like my fstab entry: /dev/sdb1 /media/stickauto noauto,rw,users 0 0 AFAIK the option to permit user mount is user and not users. Could this cause the problem?
Re: [gentoo-user] USB permission/owner - change not allowed as root
On 12/30/13 17:36, Randolph Maaßen wrote: [snip] With the line in fstab: /dev/sdb1 /media/stickautonoauto,rw,users 0 0 Some USB stick are mounted as root:root and I can not change that even as root. When I remove this like from fstab. The USB stick are mounting correctly as joseph:users owner except they have different mounting location which I don't like. -- Joseph You can specify the user/group that mounts a device with some mount options. I think they are uid=username/gid=groupname but I'm not sure and unfortunatly not on my Linux box at the moment. I've tried in fstab: /dev/sdb1 /media/stickauto noauto,uid=1000,gid=100,umask=0770 0 but I'm getting an error: Error mounting system-managed device /dev/sdb1: Command-line `mount /media/stick' exited with non-zero exit status 32: mount: wrong fs type, bad option, bad superblock on /dev/sdb1, What am I missing? -- Joseph
Re: [gentoo-user] USB permission/owner - change not allowed as root
On Sun, Dec 29, 2013 at 07:42:33PM -0700, Joseph wrote: After recent upgrade when I mount my USB and try as root: chown joseph:users /media/stick/Ancient-Electricity_new.ppt chown: changing ownership of ‘/media/stick/Ancient-Electricity_new.ppt’: Operation not permitted file ownership is: -rwxr-xr-x 1 root root 5796864 Mar 6 2013 Ancient-Electricity_new.ppt The thread kinda zig-zagged off on me, so hope you don't mind a post here. Perhaps this guide would be as nice a read for you as it was for me. It brings back memories as I started using Linux in June, 2003, just before he wrote it: http://www.linuxquestions.org/linux/answers/Security/Quick_and_Dirty_Guide_to_Linux_File_Permissions Second, please issue blkid and give the line for this USB device. Cheers, Bruce -- List replies preferred. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? Don't top-post: http://en.wikipedia.org/wiki/Top_post#Top-posting
Re: [gentoo-user] USB permission/owner - change not allowed as root
On Mon, 30 Dec 2013 17:52:56 +0100, waben...@gmail.com wrote: For some reason or another the system doesn't like my fstab entry: /dev/sdb1 /media/stickauto noauto,rw,users 0 0 AFAIK the option to permit user mount is user and not users. Could this cause the problem? user and users are both valid, slightly different, options. -- Neil Bothwick In 1750 Issac Newton became discouraged when he fell up a flight of stairs. signature.asc Description: PGP signature
Re: [gentoo-user] USB permission/owner - change not allowed as root
Am Dienstag, 31.12.2013 um 01:38 schrieb Neil Bothwick n...@digimed.co.uk: On Mon, 30 Dec 2013 17:52:56 +0100, waben...@gmail.com wrote: For some reason or another the system doesn't like my fstab entry: /dev/sdb1 /media/stickauto noauto,rw,users 0 0 AFAIK the option to permit user mount is user and not users. Could this cause the problem? user and users are both valid, slightly different, options. THX for the info, I didn't know that.
Re: [gentoo-user] USB permission/owner - change not allowed as root
Joseph wrote: After recent upgrade when I mount my USB and try as root: chown joseph:users /media/stick/Ancient-Electricity_new.ppt chown: changing ownership of ‘/media/stick/Ancient-Electricity_new.ppt’: Operation not permitted file ownership is: -rwxr-xr-x 1 root root 5796864 Mar 6 2013 Ancient-Electricity_new.ppt Is it mounted Read Only? It's the only thing I can think of. I'm not sure if that would keep it from changing it if it is either. Dale :-) :-) -- I am only responsible for what I said ... Not for what you understood or how you interpreted my words!
Re: [gentoo-user] USB permission/owner - change not allowed as root
On 12/29/13 21:41, Dale wrote: Joseph wrote: After recent upgrade when I mount my USB and try as root: chown joseph:users /media/stick/Ancient-Electricity_new.ppt chown: changing ownership of ‘/media/stick/Ancient-Electricity_new.ppt’: Operation not permitted file ownership is: -rwxr-xr-x 1 root root 5796864 Mar 6 2013 Ancient-Electricity_new.ppt Is it mounted Read Only? It's the only thing I can think of. I'm not sure if that would keep it from changing it if it is either. Dale :-) :-) -- I am only responsible for what I said ... Not for what you understood or how you interpreted my words! When I open the USB stick, it doesn't say anything (on the top) read only mode. -- Joseph
Re: [gentoo-user] USB permission/owner - change not allowed as root
Joseph syscon...@gmail.com wrote: On 12/29/13 21:41, Dale wrote: Joseph wrote: After recent upgrade when I mount my USB and try as root: chown joseph:users /media/stick/Ancient-Electricity_new.ppt chown: changing ownership of ‘/media/stick/Ancient-Electricity_new.ppt’: Operation not permitted file ownership is: -rwxr-xr-x 1 root root 5796864 Mar 6 2013 Ancient-Electricity_new.ppt Is it mounted Read Only? It's the only thing I can think of. I'm not sure if that would keep it from changing it if it is either. Dale :-) :-) -- I am only responsible for what I said ... Not for what you understood or how you interpreted my words! When I open the USB stick, it doesn't say anything (on the top) read only mode. What file system on the stick? If it is FAT there is no such thing as ownership. -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici cov...@ccs.covici.com
Re: [gentoo-user] USB permission/owner - change not allowed as root
On 12/29/13 21:41, Dale wrote: Joseph wrote: After recent upgrade when I mount my USB and try as root: chown joseph:users /media/stick/Ancient-Electricity_new.ppt chown: changing ownership of ‘/media/stick/Ancient-Electricity_new.ppt’: Operation not permitted file ownership is: -rwxr-xr-x 1 root root 5796864 Mar 6 2013 Ancient-Electricity_new.ppt Is it mounted Read Only? It's the only thing I can think of. I'm not sure if that would keep it from changing it if it is either. For some reason or another the system doesn't like my fstab entry: /dev/sdb1 /media/stickautonoauto,rw,users 0 0 I like consistent volume naming so I have the above entry in my fstab When I remove this like it mounts read/write with correct permissions/ownership; why? -- Joseph
Re: [gentoo-user] USB permission/owner - change not allowed as root
On 12/29/13 23:05, cov...@ccs.covici.com wrote: [snip] file ownership is: -rwxr-xr-x 1 root root 5796864 Mar 6 2013 Ancient-Electricity_new.ppt Is it mounted Read Only? It's the only thing I can think of. I'm not sure if that would keep it from changing it if it is either. Dale :-) :-) -- I am only responsible for what I said ... Not for what you understood or how you interpreted my words! When I open the USB stick, it doesn't say anything (on the top) read only mode. What file system on the stick? If it is FAT there is no such thing as ownership. Regardless of the file type, if the system present it as owner/user root -rwxr-xr-x 1 root root 5796864 Mar 6 2013 Ancient-Electricity_new.ppt I should be able to change the permission when I login as root, but I can not; that is what puzzling me. -- Joseph
Re: [gentoo-user] USB permission/owner - change not allowed as root
On Sun, 29 Dec 2013 19:42:33 -0700 Joseph syscon...@gmail.com wrote: After recent upgrade when I mount my USB and try as root: chown joseph:users /media/stick/Ancient-Electricity_new.ppt chown: changing ownership of ‘/media/stick/Ancient-Electricity_new.ppt’: Operation not permitted file ownership is: -rwxr-xr-x 1 root root 5796864 Mar 6 2013 Ancient-Electricity_new.ppt I too ran the chown command on my USB flash and got the same response as you did: localhost001 media # chown cru:users flash-drive1/ chown: changing ownership of ‘flash-drive1/’: Operation not permitted drwxr-xr-x 7 root root 16384 Dec 31 1969 flash-drive1 Don't know what to tell you. interestingmy says Dec 31 1969.
