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Linux: Difference between revisions
→Cloning to a new disk
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==Cloning to a new disk== | ==Cloning to a new disk== | ||
The | The easiest way is to use gparted. | ||
To copy a root partition, make sure you change the following: | {{hidden | Terminal Guide | | ||
To do this in the terminal: | |||
<syntaxhighlight lang="bash"> | |||
OLD_DRIVE=/dev/sda | |||
NEW_DRIVE=/dev/sdb | |||
# Show old drive partitions in sectors | |||
parted $OLD_DRIVE unit s print free | |||
# Apply GPT | |||
parted $NEW_DRIVE mklabel gpt | |||
# Copy new EFI partition with start 1024s and end 1050623s | |||
parted $NEW_DRIVE mkpart primary fat32 2048s 1050623s | |||
# Apply boot and esp flags. | |||
parted $NEW_DRIVE set 1 boot on | |||
parted $NEW_DRIVE set 1 esp on | |||
parted $NEW_DRIVE name 1 'EFI System Partition' | |||
# dd the old to the new | |||
dd if=${OLD_DRIVE}1 of=${NEW_DRIVE}1 bs=4k | |||
# Make a new partition. Make sure start and end sectors are aligned to a multiple of | |||
# i.e. start % 8 == 0 and end % 8 == 7 | |||
parted $NEW_DRIVE mkpart primary btrfs 1050624s 488396791s | |||
parted $NEW_DRIVE align-check opt 2 | |||
# Copy the filesystem | |||
mkfs.btrfs ${NEW_DRIVE}2 | |||
mkdir /media/${NEW_DRIVE} | |||
mount -t btrfs -o compress=zstd /media/${NEW_DRIVE}2 | |||
rsync -axHAWXS --numeric-ids --info=progress2 /media/${NEW_DRIVE}2 | |||
</syntaxhighlight> | |||
[https://superuser.com/questions/307541/copy-entire-file-system-hierarchy-from-one-drive-to-another rsync reference] | |||
;rsync options | |||
* -a archive mode | |||
* -x one file system | |||
* -H preserve hard links | |||
* -A preserve ACLs | |||
* -W copy whole files instead of deltas | |||
* -X preserve extended attributes | |||
* -S handle sparse files efficiently | |||
* --numeric-ids use id instead of uid/gid | |||
To copy a root partition, make sure you change the following on the new drive: | |||
* Update the UUID and mount options in <code>/etc/fstab</code> | * Update the UUID and mount options in <code>/etc/fstab</code> | ||
* Update the UUID in <code>/boot/grub/grub.cfg</code> and run <code>grub | * Update the UUID in <code>/boot/grub/grub.cfg</code> and run <code>update-grub</code> | ||
* Update the UUID in <code>/boot/EFI/ubuntu/grub.cfg</code> | * Update the UUID in <code>/boot/EFI/ubuntu/grub.cfg</code> | ||
* Run [https://help.ubuntu.com/community/Boot-Repair boot-repair] from a live disk if you run into any issues. | |||
}} | |||