Trusted, Bureaucrats, Administrators
12,424
edits
Changes
From Amahi Wiki
→Preparing an External USB Drive
* Using a "terminal" session, login in using the "root" user ID.
* The "device name" of the drive needs to be determined.
dmesg
<pre>[11122.304178] usb 2-4: new high-speed USB device number 5 using ehci_hcd
[11122.422152] usb 2-4: New USB device found, idVendor=0bc2, idProduct=3320
.
.
[11123.516813] sdb: sdb1</pre></blockquote>
* The "device name" is "sdb1".
* The USB drive needs to be "unmounted".
umount /dev/sdb1
* Format drive for ext3 filesystem and set drive label name as "usbdisk".
mkfs -t ext3 -v -L usbdisk /dev/sdb1
:'''Please Note: THIS WILL ERASE ALL DATA ON /dev/sdb1, MAKE SURE THIS IS THE CORRECT USB DRIVE AND NOT ANOTHER DRIVE.'''
<pre>mke2fs 1.42.5 (29-Jul-2012)
fs_types for mke2fs.conf resolution: 'ext3'
.
.
Writing superblocks and filesystem accounting information: done</pre></blockquote>
* Whenever a drive is formatted in Linux, about 5% is reserved of the total space on the drive for the operating system to continue using the hard drive to operate, even if it gets full. This is totally unnecessary for a USB external hard drive if it stores only data and not to run an operating system.
tune2fs -m 0 /dev/sdb1
tune2fs 1.42.5 (29-Jul-2012)
Setting reserved blocks percentage to 0% (0 blocks)
* In the previous section the device name found found via the "dmesg" command. The device name found was "sdb1".
* We set the set the external drive's "label". It was set to "usbdisk".
e2label /dev/sdb1
usbdisk
Both methods of mounting will be controlled by the server's "fstab" configuration file. The fstab (a.k.a. file systems table) file is a system configuration file containing lists of available disks and disk partitions, and indicates how they are to be initialized or otherwise integrated into a system's file system. When the "mount" command is used, the fstab file is read to determine which options should be used when mounting a specified device.
* Navigate to the "etc" directory with the "cd" command and make a backup of the current fstab file.
cp /fstab /fstab_bak
* Using a preferred file editor (i.e. vi, nano), open the fstab file.
* Near the bottom of the and after the other fstab entries, add the following:
* Now save the fstab file and exit the editor.
* Navigate to the /media directory and create a "usbdisk" directory. This is where the external drive will be mounted, this is called a "mount point".
* Make sure the external drive USB cable is connected to the server and is powered up.
* Navigate to the "etc" directory with the "cd" command and make a backup of the current fstab file.
cp /fstab /fstab_bak
* Using a preferred file editor (i.e. vi, nano), open the fstab file.
* Near the bottom of the and after the other fstab entries, add the following:
* Now save the fstab file and exit the editor.
* Navigate to the /media directory and create a "usbdisk" directory. This is where the external drive will be mounted, this is called a "mount point".
* Make sure the external drive USB cable is connected to the server and is powered up.
* Reboot the server.
* Start a "terminal" session login as the "root" user ID.
* To manually mount the external drive issue the following command:
* The system reads the fstab, when it finds a line entry with the label "usbdrive", it mounts the drive the mount point, "/media/usbdisk".
* Start a "terminal" session login as the "root" user ID.
* Issue the following command to unmount the external drive:
* Should an error occur indicating that the drive is busy and cannot be unmounted enter the command below. Then try the unmount command again.
===Installing rsnapshot===
===Email reporting===
* To email a report of backups:
'''*''' above indicates an rsnapshot version number
* Add the following to crontab for a weekly email report on rsnapshot:
<pre style="white-space: pre-wrap; word-break:keep-all;">0 */4 * * * /usr/bin/rsnapshot hourly 2>&1 | /root/rsnapreport.pl > /root/rsnapreport:00 22 * * 6 /usr/bin/rsnapshot du >> /root/rsnapreport | nail –r "somereturnadress@provider.com" -s"HDA backup report" -S smtp=smtp.yourprovider.com youremail@provider.com < /root/rsnapreport</pre>
'''Please Note:''' The above information maybe out of date due to technology changes. Please feel to update as required.
Create a //hda/backup share in the HDA webinterface
add a read only NFS export:
add
Save file
Unfortunately mounting an NFS share in fstab did not work on my machine after a reboot, so I chose an alternative configuration that mounts the share later in the booting process:
Add
save file
[[Category: Apps]]
