All Questions
8
questions
1
vote
1
answer
480
views
dd + gz = Even Worse /// Mount Valid Partition of Whole-Disk dd Image
I've got a 250G backup of a whole disk via dd, which was then piped to gz, thanks to the advice of one of my -genius- friends.
Looks like the EFI boot partition was corrupted (pretty sure it's an ...
- 11
1
vote
1
answer
2k
views
DD image smaller than drive copied
I took a backup of my server's OS disk through a live USB. Using the command:
dd if=/dev/sda bs=512 count=(30 gb worth of sectors) conv=noerror,sync status=progress | gzip -c > /path/to/removable/...
- 13
4
votes
1
answer
2k
views
Using dd to backup disk to same disk
I've tried using dd to back up my computer's hard drive, but I met with some rather confusing results. I've seen on multiple sources (e.g.: http://www.backuphowto.info/linux-backup-hard-disk-clone-dd,...
- 211
0
votes
2
answers
998
views
Incorrect size of image file made with dd and gzip?
In the past I made a backup of a partially full partition with dd if=/dev/sda1 | gzip -5 > file.gz. Some time later, when a free space on partition was smaller I made an image file again with the ...
- 1
1
vote
1
answer
2k
views
dd , pv , gzip and exclude directory, possible?
Is it possible to do the following:
dd if=/dev/hdx | pv | gzip > /path/to/image.img\
--exclude=/temp --exclude=/lost+found --exclude=/proc --exclude=/path/to/image.img
So I want to make a backup ...
- 186
1
vote
0
answers
98
views
canot restore disk image with dd (target part filled with zero)
I have a RAID0 disk before, now I want change the size of it.
From the manual, the only way is backup data, delete RAID, re-create with new size, and restore data.
now I have many old 2.5" hdd, each ...
- 43
88
votes
4
answers
76k
views
Why is piping 'dd' through gzip so much faster than a direct copy?
I wanted to backup a path from a computer in my network to another computer in the same network over a 100 Mbit/s line. For this I did
dd if=/local/path of=/remote/path/in/local/network/backup....
- 1,500
0
votes
1
answer
110
views
dd a partition and keep device structure
How can I dd a partition while keeping its device structure?
Source device:
[root@cal-7-3 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 37.3G 0 disk
└─sda1 8:1 0 ...
