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Old 05-01-2015, 04:15 PM   #1
JonathanWexler
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Mount point mappings have me baffled


I am trying to configure a Raspberry Pi to run as a file server, have installed SAMBA and have attached a 1TB external hard drive, which appears to have 4 partitions. Using Xwindows, I thought I had the advertised share mapped to the 1TB partition. So I physically placed the Pi in its permanent home (where it is difficult to get its video signal to a monitor etc.), so help with command line tools is best for me.

My problem is the share is acting like it only has about 2GB of space. And I am not sure why the mount command does not show me the partition.

I have attached to this post some output which has me baffled.

Thanks
Jonathan
Attached Files
File Type: txt which_is_which.txt (2.7 KB, 25 views)
 
Old 05-01-2015, 04:32 PM   #2
suicidaleggroll
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sda4 is not mounted. What is the output of "mount -a"?

Also, you shouldn't be using ntfs unless you absolutely have to. If this RPi is going to act as a file server in a closet and the external drive is not going to be removed, then get ntfs off of there and replace it with a native Linux FS like ext4.

Your root file system is also completely full, where did all of your space go? Did you dump files into /media/PAR1TB without a drive mounted there? If that's the case, they'll be dumped onto your SD card instead.

Last edited by suicidaleggroll; 05-01-2015 at 04:34 PM.
 
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Old 05-02-2015, 08:29 PM   #3
JonathanWexler
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Mostly there

I straightened out the mess I made (you would have laughed or cried), and it now works (planning on keeping NTFS, as I have no other rig that can read EXT4 file systems).

Got the drive mounted with mount -a. But I cannot figure out how to get it to mount at boot time automatically - etc/mtab and etc/fstab look okay to me. Please see attached.

Many thanks

Jonathan
Attached Files
File Type: txt response.txt (3.0 KB, 13 views)
 
Old 05-02-2015, 10:14 PM   #4
maples
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This is just a shot in the dark, but try adding "auto" to the options for the partition, so it looks like this:
Code:
/dev/sda4 /media/PAR1TB ntfs-3g rw,defaults,auto 0 0
 
Old 05-02-2015, 10:24 PM   #5
frankbell
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On this computer, I have two partitions on a external drive that I set to mount on boot using the "auto" option maples mentioned. Here are the relevant lines from my /etc/fstab (I used the UUIDs to identify the partitions):

Code:
UUID=1655a198-15a7-471f-9e99-e3fc9fd92ca0  /media/sdb1  ext3   rw,user,auto      0  1
UUID=7900ade7-de36-41e5-88b5-2d7aaa8adcd4  /media/sdb5  ext3   rw,user,auto       0  1
I've used similar configurations on other boxes.

Last edited by frankbell; 05-02-2015 at 10:26 PM.
 
Old 05-03-2015, 03:50 PM   #6
JonathanWexler
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Still does not mount at boot time

tried adding "user", removing "defaults", changing fschk parameter from 0 to 1, and then 1 to 2.

Same results - does not mount at boot time, "mount -a" is always successful.

attached some fdisk and parted output

I would also note that the entry in mtab seems to have no effect (and I only added an mtab entry because it was not being mounted from fstab)

Any thoughts?

Thanks
Jonathan
Attached Files
File Type: txt response2.txt (2.2 KB, 9 views)
 
Old 05-03-2015, 04:03 PM   #7
michaelk
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Is the drive USB powered or does if have a separate power supply? At boot time there may not be enough current to spin up the the drive. Have you looked at the output of the dmesg command?
 
Old 05-03-2015, 06:00 PM   #8
JonathanWexler
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separately powered. dmesg output attached

Drive is independently powered

dmesg output is attached. The line at 27.xxx is generated by "mount -a"
Attached Files
File Type: txt response3.txt (32.5 KB, 12 views)
 
Old 05-03-2015, 06:56 PM   #9
michaelk
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Is the drive always powered on or do you turn it on when booting the Pi?
 
Old 05-04-2015, 01:04 AM   #10
JonathanWexler
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Always on
 
Old 05-04-2015, 07:13 AM   #11
michaelk
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It is possible the drive is going to sleep and not waking back up fast enough. Or does an immediate reboot not mount the drive either?
 
Old 05-04-2015, 06:57 PM   #12
JonathanWexler
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I reboot

I restart with

sudo shutdown -r "now"

so I doubt the drive is going to sleep, and it is not getting remounted.
 
Old 05-04-2015, 09:13 PM   #13
frankbell
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What is the make/model of this external?
 
Old 05-04-2015, 09:33 PM   #14
michaelk
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The actual drive is a WDC WD10 EARS-00MVWB0. Since it has a separate power supply maybe a WDC My Book Essential.

Last edited by michaelk; 05-04-2015 at 09:36 PM.
 
Old 05-05-2015, 04:57 AM   #15
JonathanWexler
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I salvaged the hard drive

... from a MyBook and stuck it in an enclosure
 
  


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