How to move netbsd to another drive?

[Никита Степанов]

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[Thomas Mueller]

man dd

That doesn't always work. I got an unmountable, unreadable file system when I dd'ed from a disk effectively with 512-byte sectors to a disk with 4096-byte sectors not pretending to be 512 bytes.

The latter disk was external, Micronet Fantom, but I think the same applies to external USB hard drives of other brands such as Seagate and Western Digital.

Tom


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[Michael van Elst]

Post by Thomas Mueller

man dd

That doesn't always work. I got an unmountable, unreadable file system when I dd'ed from a disk effectively with 512-byte sectors to a disk with 4096-byte sectors not pretending to be 512 bytes.

True.

First the filesystem cannot handle fragments smaller than a sector.

And second, if fragments are at least sector size you still need to
fix up the superblock, which you can do with tunefs -S,