diff options
| author | Garrett Fields <[email protected]> | 2019-12-17 20:45:06 -0500 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2019-12-17 17:45:06 -0800 |
| commit | e8b199faec442a2e831f715ce187acf4bce0e930 (patch) | |
| tree | 888f4926e16bbb20742ce6bf225e080c357f5ba3 /contrib | |
| parent | ad976437738c67751d97732e12ad5df54b6b518f (diff) | |
Force systems with kernel option "quiet" to display prompt for password
On systems that utilize TTY for password entry, if the kernel
option "quiet" is set, the system would appear to freeze on a
blank screen, when in fact it is waiting for password entry
from the user.
Since TTY is the fallback method, this has no effect on systemd
or plymouth password prompting.
By temporarily setting "printk" to "7", running the command,
then resuming with the original "printk" state, the user can
see the password prompt.
Reviewed-by: Richard Laager <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Garrett Fields <[email protected]>
Closes #9731
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/initramfs/scripts/zfs.in | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/contrib/initramfs/scripts/zfs.in b/contrib/initramfs/scripts/zfs.in index 523694473..554016062 100644 --- a/contrib/initramfs/scripts/zfs.in +++ b/contrib/initramfs/scripts/zfs.in @@ -436,7 +436,11 @@ decrypt_fs() # Prompt with ZFS tty, otherwise else + # Setting "printk" temporarily to "7" will allow prompt even if kernel option "quiet" + storeprintk="$(awk '{print $1}' /proc/sys/kernel/printk)" + echo 7 > /proc/sys/kernel/printk $ZFS load-key "${ENCRYPTIONROOT}" + echo "$storeprintk" > /proc/sys/kernel/printk fi fi fi |