高新区分部
百度 所以，女娲、伏羲在这一功能上的叠合，完全可以说明二者之间原来具有同一体的性质。
This command is used to do low level copying of data.
216 questions
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Clone encrypted disk to another disk but less size in Linux
I've encrypted 1Tb NVMe disk where OS installed.
I have another 1Tb NVMe disk but a bit less capacity (931G vs 953,9G).
I want to make a bootable clone of the first disk.
Which options I have?
Here ...
- 749
247
votes
29
answers
685k
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Using DD for disk cloning
There's been a number of questions regarding disk cloning tools and dd has been suggested at least once. I've already considered using dd myself, mainly because ease of use, and that it's readily ...
- 2,885
0
votes
1
answer
388
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Using dd to clone disk with LUKS encryption
We want to copy the contents of one disk to another, but with the complication that the source disk has the data in a LUKS encrypted partition, and the destination disk will not use LUKS.
Normally we ...
0
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0
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168
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Reset NVMe drive (No data wipe)
I want to reset an NVMe disk to the state when it came out of the box, not a data or secure wipe needed, disk will be reused in same system.
More context:
It is a Turing RK1 Module in a Turing PI 2.5 ...
3
votes
2
answers
3k
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Using dd with nvme device
I want to use dd under linux to make a backup image of my disk. With sata devices there is a /dev/sda for the disk, and /dev/sdaX for each partition.
But with this nvme I see /dev/nvme0, /dev/nvme0n1,...
- 2,024
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1
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122
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Table partition after DD Cloning
I've got some questions about table partition after dd cloning a full disk. I have been cloning a full disk with a dual boot: Win + Ubuntu to an image. The disk contained the following partition:
WIN: ...
11
votes
4
answers
10k
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Linux / BSD "quickly" wipe a USB drive?
I'm clearing a drive with dd. It's a USB device and 120GB and it's taking a very long time:
dd if=/dev/zero of=/dev/da0 bs=1M status=progress
I have tried messing with the block size (smaller and ...
- 702
4
votes
4
answers
17k
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Using DD to clone a 600GB drive using SSH to remote location with only 60 GB of allocated data [server migration]
Please, excuse my horrible english. I'm triyng to find the way to clone a HDD server to a remote destination location, using SSH and, if possible, compress data on-the-fly to minimize unnecessary data ...
- 121
1
vote
1
answer
205
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How to write a file DIRECTLY to tape with dd
I am trying to write a file directly to a tape in my LTO4 tape drive. From what I understand, this should be possible.
However, when I attempt to use dd to write to it (e.g. dd if="/test.img"...
65
votes
8
answers
212k
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dd on entire disk, but do not want empty portion
I have a disk, say /dev/sda.
Here is fdisk -l:
Disk /dev/sda: 64.0 GB, 64023257088 bytes
255 heads, 63 sectors/track, 7783 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (...
- 1,039
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0
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432
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copying DD to a folder and converting to qcow2
I am trying to copy disk image (block files) with resepct to KVM images and convert it to Qcow2 format in a single command,Can we copy copy dd to a folder and convert it to qcow2 in single command.
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5
votes
4
answers
3k
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Cloning data from a damaged SSD
The SSD went into read-only mode, so you need to move the partition to a working SSD, but I encountered the fact that the LVM size is different:
#lvm pvscan
PV /dev/sdc3 VG pve lvm2 [&...
- 63
0
votes
0
answers
82
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Resizing RAID-1 devices after dd clone
I had 2 x 250 GB disks with 3 md devices - raid 1 setup on them. One of them is for /. I dd-cloned those disks to another 2 x 2 TB SSDs. What is the best solution to increase the raid device sizes? &...
- 15
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306
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Why did dd report a "No Space" error after cloning a USB drive?
In Ubuntu 22.04 LTS, I use this command to clone one Samsung USB GPT drive to another identical drive:
sudo dd if=/dev/sdb of=/dev/sdc bs=16M conv=sync,noerror status=progress
This operation ...
- 101
1
vote
3
answers
11k
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Why Linux "dd" is erroring with "no space left on device" while copying a single partition to a smaller device?
I'm trying to copy the single partition /dev/sda1 to /dev/sdc1, but I'm getting the error "no space left on device" and I honestly don't get why.
I'm working on an Oracle Cloud ...
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