[CentOS] CentOS 6 and luksOpen

Tue Jun 20 15:41:17 UTC 2017
m.roth at 5-cent.us <m.roth at 5-cent.us>


Leon Fauster wrote:
>> Am 20.06.2017 um 17:12 schrieb m.roth at 5-cent.us:
>> Leon Fauster wrote:
>>>> Am 20.06.2017 um 16:53 schrieb m.roth at 5-cent.us:
>>>> I've done that, and made the filesystem, but I can't mount it.
>>>> CentOS 6.
>>>> I have the entry in /etc/crypttab, and a key in /etc/crypt.pw, and the
>>>> luks UUID in /etc/fstab. I cannot find the command that tells it to
>>>> create the device in /dev/mapper from the info in /etc/crypttab.
>>> MAPDEVICE=/dev/sdxy ; cryptsetup luksOpen ${MAPDEVICE}
>>> luks-$(cryptsetup
>>> luksUUID ${MAPDEVICE})
>> Something's not right. I did
>> cryptsetup luksOpen /dev/sdb luks-$(cryptsetup luksUUID $(/dev/sdb))
>> --key-file /etc/crypt.pw
>> It did want the password, so I added --key-file, but it seems to have
>> created /dev/mapper/luks, not the full luksUUID that's in both crypttab
>> and fstab.
> unmap: cryptsetup luksClose /dev/mapper/luks
> and then try again with following correction
> NOT ...UUID $(/dev/sdb)
>     ...UUID /dev/sdb

Thank you *very* much for the help, and such fast responses. Googling
hadn't been helpful....

I'm good now (and will be documenting it for my manager and the other admin).