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Nallelcm
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Joined: 04 Jan 2006
Posts: 16
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 Posted: Wed Jan 04, 2006 2:45 pm Post subject: mounting USB Drive on boot [Big 'ol SOLVED] |
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I have added my usb drive (sda1) to my fstab
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/dev/sda1 /mnt/drive vfat defaults 0 0
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only prob is when i start up my computer it tells me that there is no sda1, yet after it boots i can mount sda1
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Last edited by Nallelcm on Wed Jan 11, 2006 3:53 pm; edited 1 time in total |
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mmbrothers
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Joined: 24 Dec 2005
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| Posted: Wed Jan 04, 2006 2:57 pm Post subject: |
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The point during boot where filesystems are mounted is pretty early. It is most likely that USB devices have not been detected this early in the process. You could always add a line such as
to /etc/conf.d/local.start. Of course, make sure that local is in the default runlevel. |
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Nallelcm
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Joined: 04 Jan 2006
Posts: 16
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| Posted: Wed Jan 04, 2006 3:58 pm Post subject: |
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| mmbrothers wrote: | The point during boot where filesystems are mounted is pretty early. It is most likely that USB devices have not been detected this early in the process. You could always add a line such as
to /etc/conf.d/local.start. Of course, make sure that local is in the default runlevel. |
okay, but then, how do i mount it so that it's accessable by all users?
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mmbrothers
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| Posted: Wed Jan 04, 2006 5:05 pm Post subject: |
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One thing that I forgot to ask is: are you loading the usb modules during boot? This could be another reason that the usb drive is not mounting with the other filesystems.
What do you mean by accessible? I assume that you mean allowing the users to see/modify files on this filesystem. You just need to give users permissions to the files that you want them to have access to. Don't forget that they will also need r-x permissions to the directory where you mount this FS, otherwise they cannot get to the files on this drive.
For information about permissions you can read man chmod and man chown |
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Nallelcm
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Joined: 04 Jan 2006
Posts: 16
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| Posted: Wed Jan 04, 2006 6:16 pm Post subject: |
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| mmbrothers wrote: | One thing that I forgot to ask is: are you loading the usb modules during boot? This could be another reason that the usb drive is not mounting with the other filesystems.
What do you mean by accessible? I assume that you mean allowing the users to see/modify files on this filesystem. You just need to give users permissions to the files that you want them to have access to. Don't forget that they will also need r-x permissions to the directory where you mount this FS, otherwise they cannot get to the files on this drive.
For information about permissions you can read man chmod and man chown |
yeah i want users to be allowed to see/modify files. im not sure how my usb modules are being loaded... but if I as root "mount -t vfat /dev/sda1 /mnt/storage" and then "chmod 777 /mnt/storage" then as my user account i still dont have access to read/write to /mnt/storage 
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mmbrothers
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Joined: 24 Dec 2005
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Location: Boston
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| Posted: Wed Jan 04, 2006 10:47 pm Post subject: |
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Are you setting permissions on all of the files/directories that you need access to on the filesystem?
If you want to set 777 on all files on the filesystem you will need to issue the command
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chmod -R 777 /mnt/storage
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Which will recursively set the file permissions on /mnt/storage.
Although mode 777 is usually a bad idea in most cases. You could create a group of users that you want to have write access to this drive and assign this group permissions to the files. |
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Nallelcm
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Joined: 04 Jan 2006
Posts: 16
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| Posted: Thu Jan 05, 2006 7:37 am Post subject: |
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| mmbrothers wrote: | Are you setting permissions on all of the files/directories that you need access to on the filesystem?
If you want to set 777 on all files on the filesystem you will need to issue the command
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chmod -R 777 /mnt/storage
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Which will recursively set the file permissions on /mnt/storage.
Although mode 777 is usually a bad idea in most cases. You could create a group of users that you want to have write access to this drive and assign this group permissions to the files. |
| Code: | emu media # ls -l
total 64
drwxr--r-- 9 nallelcm root 32768 Dec 31 1969 storage
drwxr--r-- 7 nallelcm root 32768 Jan 4 07:15 usbd
emu media # chmod 777 storage
chmod: changing permissions of `storage': Read-only file system
emu media # ls -l
total 64
drwxr--r-- 9 nallelcm root 32768 Dec 31 1969 storage
drwxr--r-- 7 nallelcm root 32768 Jan 4 07:15 usbd
emu media # |
you would think that chmod 777 storage would show a drwxrwxrwx as the permissions for storage... but no
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MrUlterior
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| Posted: Thu Jan 05, 2006 1:22 pm Post subject: |
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You can't set permission on a VFAT fs with chmod! If you wish to set the permission on the mountpoint, then do so BEFORE mounting it, but this will only really affect users ability to cd into the dir, not perms on the dir's contents.
To set perms on the mounted content
You need "uid=XXX,gid=XXX,fmask=XXX,dmask=XXX" in your /etc/fstab
Where XXX in uid & gid are the UID/GID of the user & group owners of the content. fmask determines the umask to apply to files, dmask denotes the umask for directories.
Suggest you read "man mount" and search for umask there, for more info. Or else scream and I'll post my fstab which has a working example that I use to mount my CF card readers when I get home ...
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Nallelcm
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Joined: 04 Jan 2006
Posts: 16
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| Posted: Thu Jan 05, 2006 7:14 pm Post subject: |
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| MrUlterior wrote: | You can't set permission on a VFAT fs with chmod! If you wish to set the permission on the mountpoint, then do so BEFORE mounting it, but this will only really affect users ability to cd into the dir, not perms on the dir's contents.
To set perms on the mounted content
You need "uid=XXX,gid=XXX,fmask=XXX,dmask=XXX" in your /etc/fstab
Where XXX in uid & gid are the UID/GID of the user & group owners of the content. fmask determines the umask to apply to files, dmask denotes the umask for directories.
Suggest you read "man mount" and search for umask there, for more info. Or else scream and I'll post my fstab which has a working example that I use to mount my CF card readers when I get home ... |
Well, if you wouldn't mind, that would be great 
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MrUlterior
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| Posted: Sat Jan 07, 2006 3:13 pm Post subject: |
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| Code: |
## removable stuff
/dev/sdb1 /mnt/sdcard vfat rw,uid=1000,gid=100,umask=022,noauto 0 0
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You'll need to set your UID & GID as appropriate
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Nallelcm
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Posts: 16
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| Posted: Sun Jan 08, 2006 5:45 am Post subject: |
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| MrUlterior wrote: | | Code: |
## removable stuff
/dev/sdb1 /mnt/sdcard vfat rw,uid=1000,gid=100,umask=022,noauto 0 0
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You'll need to set your UID & GID as appropriate |
umm, what about if i wanted all users to be able to access it ... i dont know if yours already does that, but im gonna give it a shot
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MrUlterior
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Posts: 511
Location: Switzerland
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| Posted: Sun Jan 08, 2006 2:02 pm Post subject: |
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| Nallelcm wrote: | | MrUlterior wrote: | | Code: |
## removable stuff
/dev/sdb1 /mnt/sdcard vfat rw,uid=1000,gid=100,umask=022,noauto 0 0
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You'll need to set your UID & GID as appropriate |
umm, what about if i wanted all users to be able to access it ... i dont know if yours already does that, but im gonna give it a shot |
You are aware that users can be in multiple groups?
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# groups mrulterior
wheel audio cdrom video vmware users
# cat /etc/group| egrep "^users"
users:x:100:games
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So you see that my user is in the group "users", which has a GID 100. That GID is in my options for my SD card reader, meaning that group ownership of all content on the sdcard is forced to "users", see:
| Code: | # mount sdcard && cd sdcard && touch test.txt && ls -lath test.txt
-rwxrwxrw- 1 root users 0 Jan 8 15:01 test.txt
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So logically, any user you want to be able to read/write to that mountpoint, only has to be a member of the group "users"
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Nallelcm
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Joined: 04 Jan 2006
Posts: 16
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| Posted: Tue Jan 10, 2006 9:26 am Post subject: |
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| MrUlterior wrote: |
You are aware that users can be in multiple groups?
| Code: |
# groups mrulterior
wheel audio cdrom video vmware users
# cat /etc/group| egrep "^users"
users:x:100:games
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So you see that my user is in the group "users", which has a GID 100. That GID is in my options for my SD card reader, meaning that group ownership of all content on the sdcard is forced to "users", see:
| Code: | # mount sdcard && cd sdcard && touch test.txt && ls -lath test.txt
-rwxrwxrw- 1 root users 0 Jan 8 15:01 test.txt
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So logically, any user you want to be able to read/write to that mountpoint, only has to be a member of the group "users" |
well okay, i just want you to take a look at this
| Code: | nallelcm@emu ~ $ cat /etc/fstab | grep "/dev/sda"
/dev/sda1 /media/storage vfat rw,uid=1000,gid=100,umask=022,noauto 0 0
nallelcm@emu ~ $ cat /etc/group | grep nallelcm
disk::6:root,adm,nallelcm
wheel::10:root,nallelcm
floppy::11:root,nallelcm
cron::16:cron,nallelcm
audio::18:nallelcm
cdrom::19:nallelcm
video::27:root,nallelcm
games::35:nallelcm
usb::85:nallelcm
users::100:games,nallelcm
nallelcm@emu ~ $ cat /etc/passwd | grep nallelcm
nallelcm:x:1000:100::/home/nallelcm:/bin/bash
nallelcm@emu ~ $ |
that's how it's currently set up... the fstab is set up "right" however i rebooted expecting it to mount...
| Code: | nallelcm@emu ~ $ cd /media/storage/
nallelcm@emu /media/storage $ ls
nallelcm@emu /media/storage $ |
so then i decided to mount it manually using the options specified in my fstab | Code: |
emu nallelcm # mount -t vfat -o rw,uid=100,gid=100,umask=022,noauto /dev/sda1 /media/storage
emu nallelcm # cd /media/storage
emu storage # ls
ApInsTmp.log Music config.sys pagefile.sys xorg.conf
Backup System Volume Information io.sys sxs
Downloads autoexec.bat msdos.sys system.sav
emu storage # exit
exit
nallelcm@emu ~ $ cd /media/storage
nallelcm@emu /media/storage $ ls
ApInsTmp.log Music config.sys pagefile.sys xorg.conf
Backup System Volume Information io.sys sxs
Downloads autoexec.bat msdos.sys system.sav
nallelcm@emu /media/storage $ cd ..
nallelcm@emu /media $ ls -l
total 36
drwxr-xr-x 9 100 users 32768 Dec 31 1969 storage
drwxr-xr-x 2 nallelcm users 4096 Jan 4 07:00 usbd
nallelcm@emu /media $ cd storage
nallelcm@emu /media/storage $ echo "test" > new
bash: new: Permission denied |
Well it looks like i can mount it for reading for all users, but i don't know how to make it writable for all users now... and it still doesn't do it on boot
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Last edited by Nallelcm on Tue Jan 10, 2006 4:29 pm; edited 2 times in total |
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MrUlterior
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Joined: 22 Mar 2005
Posts: 511
Location: Switzerland
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| Posted: Tue Jan 10, 2006 12:30 pm Post subject: |
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Change "noauto" to "auto" or remove it completely, and "umask=022" to "umask=002" in your /etc/fstab
You realise that your uid in /etc/fstab reads 100 instead of 1000 right? Otherwise this would have worked already ...
| Code: |
nallelcm@emu ~ $ cat /etc/passwd | grep nallelcm
nallelcm:x:1000:100::/home/nallelcm:/bin/bash
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Nallelcm
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Joined: 04 Jan 2006
Posts: 16
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| Posted: Tue Jan 10, 2006 4:08 pm Post subject: |
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| MrUlterior wrote: | Change "noauto" to "auto" or remove it completely, and "umask=022" to "umask=002" in your /etc/fstab
You realise that your uid in /etc/fstab reads 100 instead of 1000 right? Otherwise this would have worked already ...
| Code: |
nallelcm@emu ~ $ cat /etc/passwd | grep nallelcm
nallelcm:x:1000:100::/home/nallelcm:/bin/bash
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Wow, do I ever feel dumb, I just changed it now, but I'll have to wait until I get home to see if it works 
EDIT::
well i ended up rebooting my computer while still at school, and it didn't mount...
| Code: | nallelcm@emu / $ cat /etc/fstab | grep sda
/dev/sda1 /media/storage vfat rw,uid=1000,gid=100,umask=002,auto 0 0
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that's my current fstab...
I'm gonna go ahead and assume that this is a problem where as my USB devices are being reconized after my fstab does its thing. Any idea of a work around?
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MrUlterior
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Joined: 22 Mar 2005
Posts: 511
Location: Switzerland
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| Posted: Wed Jan 11, 2006 9:27 am Post subject: |
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| Nallelcm wrote: |
I'm gonna go ahead and assume that this is a problem where as my USB devices are being reconized after my fstab does its thing. Any idea of a work around? |
Hmmm ... bizarre. It should work, do you have "usb-storage" built as a module or is it within the kernel? Is usb-storage
listed in /etc/modules.autoload/kernel2.6 ?
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Nallelcm
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Joined: 04 Jan 2006
Posts: 16
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| Posted: Wed Jan 11, 2006 2:12 pm Post subject: |
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| MrUlterior wrote: | | Nallelcm wrote: |
I'm gonna go ahead and assume that this is a problem where as my USB devices are being reconized after my fstab does its thing. Any idea of a work around? |
Hmmm ... bizarre. It should work, do you have "usb-storage" built as a module or is it within the kernel? Is usb-storage
listed in /etc/modules.autoload/kernel2.6 ? |
| Code: | # /etc/modules.autoload.d/kernel-2.6: kernel modules to load when system boots.
# $Header: /var/cvsroot/gentoo-src/rc-scripts/etc/modules.autoload.d/kernel-2.6,v 1.1 2003/07/16 18:13:45 azarah Exp $
#
# Note that this file is for 2.6 kernels.
#
# Add the names of modules that you'd like to load when the system
# starts into this file, one per line. Comments begin with # and
# are ignored. Read man modules.autoload for additional details.
# For example:
# 3c59x
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thats what is in my kernel-2.6[/quote]
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MrUlterior
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Joined: 22 Mar 2005
Posts: 511
Location: Switzerland
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| Posted: Wed Jan 11, 2006 2:21 pm Post subject: |
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Ok, that doesn't really help.
If
| Code: |
gzcat /proc/config.gz | egrep CONFIG_USB_STORAGE=
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returns:
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CONFIG_USB_STORAGE=m
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Then add usb-storage to your /etc/modules.autoload.d/kernel-2.6
| Code: |
echo usb-storage >> /etc/modules.autoload.d/kernel-2.6
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Reboot & test
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Nallelcm
n00b
Joined: 04 Jan 2006
Posts: 16
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| Posted: Wed Jan 11, 2006 2:50 pm Post subject: |
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| MrUlterior wrote: | Ok, that doesn't really help.
If
| Code: |
gzcat /proc/config.gz | egrep CONFIG_USB_STORAGE=
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returns:
| Quote: |
CONFIG_USB_STORAGE=m
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Then add usb-storage to your /etc/modules.autoload.d/kernel-2.6
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echo usb-storage >> /etc/modules.autoload.d/kernel-2.6
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Reboot & test |
| Code: | emu / # gzcat /proc/config.gz | egrep CONFIG_USB_STORAGE=
CONFIG_USB_STORAGE=m
emu / # cat /etc/modules.autoload.d/kernel-2.6 | grep usb-storage
usb-storage
emu / # cat /etc/fstab | grep sda
/dev/sda1 /media/storage vfat rw,uid=1000,gid=100,umask=002,auto 0 0
emu / # cd /media/storage
emu storage # ls
emu storage # mount -t vfat -o rw,uid=1000,gid=100,umask=002,auto /dev/sda1 /media/storage
emu storage # ls
ApInsTmp.log Music config.sys pagefile.sys xorg.conf
Backup System Volume Information io.sys sxs
Downloads autoexec.bat msdos.sys system.sav
emu storage #
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so it didn't mount on boot yet again, :S i'm stumped
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MrUlterior
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Joined: 22 Mar 2005
Posts: 511
Location: Switzerland
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| Posted: Wed Jan 11, 2006 3:00 pm Post subject: |
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Oh well, I suggest you try building the usb-storage into your kernel instead of as a module:
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cd /usr/src/linux
make mrproper
gzcat /proc/config.gz | sed -e 's/CONFIG_USB_STORAGE=m/CONFIG_USB_STORAGE=y/g' > ./.config
make oldconfig && make && make modules_install
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If your /boot is not auto-mounted, then mount it and:
That should do it.
(More help on kernel compilation can be found here: http://gentoo-wiki.com/HOWTO_Compile_a_Kernel_Manually#Compiling_the_kernel)
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Nallelcm
n00b
Joined: 04 Jan 2006
Posts: 16
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| Posted: Wed Jan 11, 2006 3:52 pm Post subject: |
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| MrUlterior wrote: | Oh well, I suggest you try building the usb-storage into your kernel instead of as a module:
| Code: |
cd /usr/src/linux
make mrproper
gzcat /proc/config.gz | sed -e 's/CONFIG_USB_STORAGE=m/CONFIG_USB_STORAGE=y/g' > ./.config
make oldconfig && make && make modules_install
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If your /boot is not auto-mounted, then mount it and:
That should do it.
(More help on kernel compilation can be found here: http://gentoo-wiki.com/HOWTO_Compile_a_Kernel_Manually#Compiling_the_kernel) |
I love you it works! Thx so much
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