Update contrib/initramfs/README.initramfs.markdown

Note that Dropbear supports ed25519 keys since version 2020.79.

See https://github.com/mkj/dropbear/pull/91

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Michael Franzl <michael@franzl.name>
Closes #12715
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Michael Franzl 2021-11-04 16:23:50 +01:00 committed by GitHub
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@ -78,7 +78,7 @@ To use this feature:
1. Install the `dropbear-initramfs` package. You may wish to uninstall the
`cryptsetup-initramfs` package to avoid warnings.
2. Add your SSH key(s) to `/etc/dropbear-initramfs/authorized_keys`. Note
that Dropbear does not support ed25519 keys; use RSA (2048-bit or more)
instead.
that Dropbear does not support ed25519 keys before version 2020.79;
in that case, use RSA (2048-bit or more) instead.
3. Rebuild the initramfs with your keys: `update-initramfs -u`
4. During the system boot, login via SSH and run: `zfsunlock`