Create UFS system for backups

Cesc

Cesc

Hello everyone, I have an extra hard drive and I would like to use it for small backups, How can I format it in UFS and add it in fstab?
 
Alain De Vos

Alain De Vos

Remove the USB cable and plug it back in.
You can see which device it is /var/log/messages or via command "dmesg".
Create a partition table and partition.
man 8 gpart
Create a ufs filesystem
man 8 newfs
 
A

a6h

-- Notes:
$ means run as normal user
# means run as root

1. List and find the name of your external disk:
$ grep -i disk /var/run/dmesg.boot
OR
# gpart show

-- Output:
Code: 
.
.
ada0 ...
ada1 ...
da0 ...
da1 GPT (512G)
.
.

-- Attention: suppose, the 512G is the correct one => da1 is the name, aka /dev/da1

2. Create a GPT partition scheme
# gpart create -s gpt /dev/da1

2.1. Check that everything is OK:
# gpart show da1

-- Output:
Code: 
da1 GPT (512G)
- free - (512G)

3. Add a new partition to the partitioning scheme:
# gpart add -t freebsd-ufs -a 1M /dev/da1

-- Notes:
-t type of partition (freebsd-ufs)
-a alignment (to 1MB boundary)

4. Then Format it:
# newfs -U /dev/da1p1

-- Note:
-U (Enable soft updates)

5. Create a mountpoint e.g. /backup
# mkdir /backup

6. Add the new partition to the /etc/fstab
# vi /etc/fstab

7. Add this line to the /etc/fstab
Code: 
/dev/da1p1    /backup        ufs    rw    2    2

8. Mount it manually:
# mount /backup

9. Done

0. RTFM
man(1), vi(1), grep(1), mkdir(1), df(1), mount(1), gpart(8), newfs(8), fstab(5)
 
D

Deleted member 67440

Guest
I do not suggest at all using UFS, least of all for backups.
For internal: go to zfs without thinking twice.
For external (USB): go to NTFS, without thinking twice.
 
D

Deleted member 67440

Guest
FAT32 is limited to 4GB, much better a USB-NTFS-zpaqqed archive, that retain backup just like zfs' snapshot, forever.

You can't just compare archaic tar-based methods, it's like comparing UFS to zfs.
 
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