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Thoht
August 13th, 2009, 21:42
I've got a 512 GB (external) USB HDD that I'd like to use for backup of my FreeBSD installation. I've got one 80 GB HDD for the system itself, and mounted a 1 TB HDD to the /home directory where users will put their websites and stuf (which will be RAID/ZFS for backup later once I've learnt more). I connected the USB HDD to one of the USB ports.

Output of dmesg:
umass0: <Western Digital My Book, class 0/0, rev 2.00/1.65, addr 2> on uhub4
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <WD 5000AAV External 1.65> Fixed Direct Access SCSI-4 device
da0: 40.000MB/s transfers
da0: 476940MB (976773168 512 byte sectors: 255H 63S/T 60801C)
GEOM_LABEL: Label for provider da0p1 is msdosfs/EFI.

Output of df:
# df
Filesystem 1K-blocks Used Avail Capacity Mounted on
/dev/ad0s1a 4520150 146860 4011678 4% /
devfs 1 1 0 100% /dev
/dev/ad2s1d 946031670 22 870349116 0% /home
/dev/ad0s1e 507630 12 467008 0% /tmp
/dev/ad0s1f 67634226 1006448 61217040 2% /usr
/dev/ad0s1d 3019406 87534 2690320 3% /var


Output of camcontrol devlist:
# camcontrol devlist
<WD 5000AAV External 1.65> at scbus0 target 0 lun 0 (da0,pass0)

I followed the instructions on adding disks (http://www.freebsd.org/doc/en/books/handbook/disks-adding.html) using sysinstall, chosing to use the entire disk, and all looks well until step 4. I cd to /dev and ls:

acd0 ata dcons lpt0 ppi0 ttyv2 urandom
acd0t01 atkbd0 devctl lpt0.ctl ptyp0 ttyv3 usb
acpi audit devstat mdctl ptyp1 ttyv4 usb0
ad0 bpf0 dgdb mem random ttyv5 usb1
ad0s1 console fd msdosfs stderr ttyv6 usb2
ad0s1a consolectl fido net stdin ttyv7 usb3
ad0s1c ctty geom.ctl net1 stdout ttyv8 usb4
ad0s1d cuad0 io net2 sysmouse ttyv9 xpt0
ad0s1e cuad0.init iso9660 net3 ttyd0 ttyva zero
ad0s1f cuad0.lock kbd0 network ttyd0.init ttyvb
ad2 da0 kbd1 nfs4 ttyd0.lock ttyvc
ad2s1 da0p1 kbdmux0 nfslock ttyp0 ttyvd
ad2s1c da0p2 klog null ttyp1 ttyve
ad2s1d da0s1 kmem pass0 ttyv0 ttyvf
agpgart da0s1c log pci ttyv1 ufsid


So I ee /etc/fstab and edit it to include da0s1c:

# Device Mountpoint FStype Options Dump Pass#
/dev/ad0s1a / ufs rw 1 1
/dev/ad2s1d /home ufs rw 2 2
/dev/ad0s1e /tmp ufs rw 2 2
/dev/ad0s1f /usr ufs rw 2 2
/dev/ad0s1d /var ufs rw 2 2
/dev/acd0 /cdrom cd9660 ro,noauto 0 0
/dev/da0s1c /backup ufs rw 0 0


I save and exit, whereafter I try to mount it:

# mount -a
mount: /dev/da0s1c : Invalid argument

I don't understand what that means, where'd I go wrong?
SirDice
August 13th, 2009, 21:48
You forgot to newfs it. Don't use sysinstall, follow the procedure on doing it on the commandline.
Thoht
August 13th, 2009, 22:08
Okey, using commandline instead.

# dd if=/dev/zero of=/devda0 bs=1k count=1
1+0 records in
1+0 records out
1024 bytes transferred in 0.000056 secs (18276457 bytes/sec)
# fdisk -BI da0
******* Working on device da0 *******
fdisk: Geom not found: "da0"Is this a bad thing? I continued anyway.
# bsdlabel -B -w da0s1 auto
# bsdlabel -e da0s1This opens the editor:# /dev/da0s1:
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 976767986 16 unused 0 0
c: 976768002 0 unused 0 0 # "raw" part, don't edit


I'm not sure what to enter here. The handbook didn't explain any further.
Thoht
August 13th, 2009, 22:59
Found it, entered 4.2BSD instead of unused, then ran the rest of the commands and mounted it to /backup.
fender0107401
August 14th, 2009, 03:30
Seems the "c" partition designates the entire disk, you should mount one("d", "e" or something) of the partitions instead of the entire disk.
Bormental
August 20th, 2009, 14:59
example for msdos file systems
mount_msdosfs /dev/da0p1 /mnt
GEOM_LABEL: Label for provider da0p1 is msdosfs/EFI
NOT ufs
or format disk in ufs :)
Bunyan
August 20th, 2009, 17:40
newfs -L EFI /dev/da0s1

Then mount it.
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