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Nov
18
comment How fast is 127.0.0.1?
The name doesn't actually tell you anything. For example, a physical RS-232 loop back will be just as slow as your serial port, whereas if you were to implement one at the driver level it would be faster. Of course localhost will be handled in software, but you can't tell that just from the name "loopback". In case you're too young to know of these things, I give you google.com/search?q=rs232+loopback&tbm=isch
Jan
7
comment On Ubuntu 11.10, is it possible to decrypt 2 hard disks encrypted with LUKS / LVM by entering only one passphrase at boot?
I tried without crypttab on Debian, and it did not work. Even with crypttab it isn't working, but I've gotten closer. sdb3_crypt UUID=4a... sda3_crypt luks,initramfs,keyscript=decrypt_derived. The initramfs option is needed in order to get the decrypt_derived sccript included in the initramfs. But it's still failing to load at startup.
Jan
6
comment On Ubuntu 11.10, is it possible to decrypt 2 hard disks encrypted with LUKS / LVM by entering only one passphrase at boot?
Could you explain how this is supposed to work? Does LVM start in degraded mode and then fix itself once the second PV is available?
Aug
9
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Jan
21
awarded  Teacher
Jan
21
answered How do I make Linux recognize a new SATA /dev/sda drive I hot swapped in without rebooting?