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shgadwa
Guru
Joined: 12 Mar 2009
Posts: 327
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 Posted: Thu Jan 28, 2010 2:15 pm Post subject: Flash drive mounts read only |
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I've had this problem for a while now.
My flash drive does not mount unless I add a entry in /etc/fstab for it and then mount it manually as root. Then, when I do mount it... it mounts read only.
Any ideas? |
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mikegpitt
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Joined: 22 May 2004
Posts: 3224
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| Posted: Thu Jan 28, 2010 3:46 pm Post subject: |
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A few questions...
1) How are you trying to mount the drive as a non-root user?
2) What is the filesystem of the flash drive?
3) Have you checked to make sure the physical read-only switch is flipped in the correct direction (assuming your drive has one)?
Also, can you post the output of:
1) `fdisk -l` (with the flash drive plugged in)
2) `cat /etc/fstab` |
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shgadwa
Guru
Joined: 12 Mar 2009
Posts: 327
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| Posted: Fri Jan 29, 2010 12:09 pm Post subject: |
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| mikegpitt wrote: | A few questions...
1) How are you trying to mount the drive as a non-root user?
2) What is the filesystem of the flash drive?
3) Have you checked to make sure the physical read-only switch is flipped in the correct direction (assuming your drive has one)?
Also, can you post the output of:
1) `fdisk -l` (with the flash drive plugged in)
2) `cat /etc/fstab` |
Its supposed to automatically mount and it does not do that. I try to mount it by clicking on it and it says I don't have permission and that only root can do that. I just tried it in the terminal with my user name and it said only root can do that. Its a FAT drive. It does not have a switch and it works flawlessly on Mac OS X and windows XP both read and write.
| Code: | atlantis shawn # fdisk -l
Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x119b2f60
Device Boot Start End Blocks Id System
/dev/sda1 1 5 40131 83 Linux
/dev/sda2 6 371 2939895 82 Linux swap / Solaris
/dev/sda3 372 6073 45801315 83 Linux
/dev/sda4 * 6074 12801 54042660 7 HPFS/NTFS
Disk /dev/sdb: 16.0 GB, 16039018496 bytes
75 heads, 40 sectors/track, 10442 cylinders
Units = cylinders of 3000 * 512 = 1536000 bytes
Disk identifier: 0xc3072e18
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 10443 15663084 c W95 FAT32 (LBA)
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| Code: | atlantis shawn # cat /etc/fstab
# /etc/fstab: static file system information.
#
# noatime turns off atimes for increased performance (atimes normally aren't
# needed; notail increases performance of ReiserFS (at the expense of storage
# efficiency). It's safe to drop the noatime options if you want and to
# switch between notail / tail freely.
#
# The root filesystem should have a pass number of either 0 or 1.
# All other filesystems should have a pass number of 0 or greater than 1.
#
# See the manpage fstab(5) for more information.
#
# <fs> <mountpoint> <type> <opts> <dump/pass>
# NOTE: If your BOOT partition is ReiserFS, add the notail option to opts.
/dev/sda1 /boot ext2 noauto,noatime 1 2
/dev/sda3 / ext4 noatime 0 1
/dev/sda2 none swap sw 0 0
/dev/sda4 /media/windows ntfs-3g defaults 0 0
/dev/cdrom /media/CDROM auto noauto,ro 0 0
/dev/sdb1 /media/Shawn auto defaults 0 0
# glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for
# POSIX shared memory (shm_open, shm_unlink).
# (tmpfs is a dynamically expandable/shrinkable ramdisk, and will
# use almost no memory if not populated with files)
shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
#/squashed/usr/usr.sfs /squashed/usr/ro squashfs loop,ro 0 0
#usr /usr aufs udba=reval,br:/squashed/usr/rw:/squashed/usr/ro 0 0
chromium /home/shawn/.config/chromium tmpfs size=192M,noauto,user,exec,uid=1001,gid=100 0 0 |
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krinn
Watchman
Joined: 02 May 2003
Posts: 7471
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| Posted: Fri Jan 29, 2010 3:52 pm Post subject: |
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try
/dev/sdb1 /media/Shawn auto nodev,noexec,nosuid,rw,users,umask=007,gid=users |
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shgadwa
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Joined: 12 Mar 2009
Posts: 327
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| Posted: Fri Jan 29, 2010 4:33 pm Post subject: |
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That did it! Thanks a lot!!
Now my only problem is automounting drives that are not in /etc/fstab... is that possible? |
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krinn
Watchman
Joined: 02 May 2003
Posts: 7471
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| Posted: Fri Jan 29, 2010 7:27 pm Post subject: |
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udev is there for that.
for some general mount, i think gnome and kde should mount it themself without anything special to do. |
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mikegpitt
Advocate
Joined: 22 May 2004
Posts: 3224
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| Posted: Sat Jan 30, 2010 1:17 pm Post subject: |
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| I don't know in the case of Gnome and KDE, but having an entry in your fstab typically overides automounting. I would comment out that line to see if automounting works by default. If it doesn't, can you report back what automounter you are using? Personally I use halevt, which is a successor to ivman. |
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shgadwa
Guru
Joined: 12 Mar 2009
Posts: 327
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| Posted: Mon Feb 01, 2010 1:36 am Post subject: |
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Well, I just realized that I have the same problem with CD ROMS... should I use a different fstab entry for it or what?
Thanks a lot,
~Shawn |
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mikegpitt
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Joined: 22 May 2004
Posts: 3224
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| Posted: Mon Feb 01, 2010 5:02 am Post subject: |
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| belikeyeshua wrote: | Well, I just realized that I have the same problem with CD ROMS... should I use a different fstab entry for it or what?
Thanks a lot,
~Shawn |
The CD-ROM won't automount with the entry in your fstab. If you want to add user mounting to the mix add the 'user' flag to the mount options:
| Code: | | /dev/cdrom /mnt/cdrom auto noauto,ro,user 0 0 |
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