So to summarize, in my case, I can only run "destroy" : - using external lock files (-l parameter mandatory) - with the current key only (no -n -1 parameter to say destroy them all) - using /dev/xxx (xxx only doesn't work)
First, what's not working : --> Without detached lockfile # kldload geom_bde # gbde init /dev/da0 -i # gbde attach da0 # gbde detach da0 # gbde destroy da0 Enter passphrase: gbde: read: Inappropriate ioctl for device
# gbde destroy /dev/da0 Enter passphrase: gbde: No -L option and no space in sector 0 for lockfile
--> With detached lockfile # gbde destroy da0 -l /etc/mykey Enter passphrase: gbde: Error 22 decrypting lock
# gbde destroy /dev/da0 -l /etc/mykey Enter passphrase: Wrote key 0 at 5371894
And it worked for the current key.
I also tried to use the -n x, --n x parameter (with x= -1, 1) but it never worked!
At one point I even received a Fatal trap 12: page fault while in kernel mode (many of them in fact)
Dany Nativel wrote:
I've been playing around with GBDE under 5.2RC2-1. It's a fantastic encrypted FS.
Following the man page, I've tried to use the destroy command but without success.
Here is what I did to create the encrypted FS (for this test I didn't use the /dev/random to fill-up the disc).
# kldload geom_bde # gbde init /dev/da0 -i # gbde setkey /dev/da0 -n 2 # gbde attach /dev/da0 # newfs /dev/da0.bde # mount /dev/da0.bde /mnt/usbkey --> use the FS, works fine # umount /mnt/usbkey # gbde detach da0
Then according to the man page I should use : #gbde destroy da0 -n -1 to purge all keys but I get : gbde: illegal option -- n
so I changed to : #gbde destroy da0 --n -1 and got : gbde: read: Innapropriate ioctl for device
so I changed to :
#gbde destroy /dev/da0 --n -1 and this time I get the password prompt but it fails to destroy anything :
Opened with key 0
gbde: No -L option and no space in sector 0 for lockfile
Maybe I didn't understand the purpose of the this command. I thought it was going to replace each lock key with some random data.
Can somebody explain me how to use the "destroy" command ?
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