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Old 09-22-2006, 04:04 PM   #1
pmetzak
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Registered: Sep 2006
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using fstab to mount a new drive


Hi,

I have managed to install and partition a new drive but I am getting an error message when I try to mount the drive on bootup using fstab.

The line I put into fstab looks like this:

/dev/sdb1 /thurstone ext2 rw,users,umask=022 0 0

I think the problem might be with the umask portion of this command. Someone from a previous post told me to put that in but I can't find much information about what that command does... I know this isn't much to go on but if you can help at all or need more information to solve the problem, please let me know!

Thank you very much in advance!
 
Old 09-22-2006, 04:21 PM   #2
farslayer
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Registered: Oct 2005
Location: Willoughby, Ohio
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why not simply

/dev/sdb1 /thurstone ext2 defaults 0 0

You stated you installed and partitioned the drive, did you create a file system on it yet ? I know your fstab entry says ext2, but I just wanted to verify you have already created the file system on the drive before you are attempting to mount it.


Quote:
umask=value
Set the umask (the bitmask of the permissions that are not
present). The default is the umask of the current process. The
value is given in octal.
so a umask of 022 would mount the drive with permissions of 755

755
-------------------------------------------
owner: read, write and execute permissions,
group: read and execute permissions,
others: read and execute permissions.
-------------------------------------------
 
Old 09-22-2006, 04:23 PM   #3
pljvaldez
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umask is sort of the opposite of chmod permissions. Basically a 777 permission (rwxrwxrwx) is the same as umask=000. So umask=022 should be the same as a 755 (rwxr-xr-x) permission.
 
Old 09-22-2006, 04:37 PM   #4
bigrigdriver
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I think farslayer hit the nail on the head. Installing a drive and creating a partition is part of the job. Completing the job means creating a filesystem on the partition (read *format* the partition).

Use mke2fs to format the partition. See the manpage for more information.

It'll be something like: mke2fs /dev/sdb1, or, if you want ext3 (journaled ext2), use: mke2fs -j /dev/sdb1.
 
Old 09-22-2006, 05:02 PM   #5
MOS JEFF-INITELY
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Registered: Sep 2006
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you can create and mount the filesystem simply using these commands:

# create file system
mkfs -t ext2 /dev/sdb1

# mount device
mount /dev/sdb1 /thurstone

however using command line mount will not save it in the boot file /etc/fstab so a reboot will erase this mount. Once the filesystem has been created edit the file /etc/fstab using farslayer's command :
/dev/sdb1 /thurstone ext2 defaults 0 0
 
  


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