On 3/11/08, Marc Shapiro <[EMAIL PROTECTED]> wrote: > diane mittnik wrote: > > I tried googling and checking docs but couldn't find anything relevant. > > I have 2 swap partitions, /dev/sda6, /dev/sda7. 1 GB of Ram > > I wanted to wipe my swap partitions, so I did swapoff /dev/sda7, then > > dd if=/dev/urandom of=/dev/sda7, then mkswap /dev/sda7, then swapon > > /dev/sda7 > > With swapon /dev/sda7, I get the following error message: > > # swapon /dev/sda > > swapon: /dev/sda7: Invalid argument > The following is from man mkswap: > > The PSZ parameter specifies the page size to use. It is > almost always unnecessary (even unwise) to specify it, but certain old libc > versions lie about the page size, so it is possible that mkswap gets it > wrong. The symptom is that a subsequent swapon fails because no swap > signature is found. Typical values for PSZ are 4096 or 8192. > > Is it possible that this is your problem? This does not say what error > swapon would give, but it certainly sounds like a possibility in this > case. Does anyone else know more about this situation? > -- > Marc Shapiro > [EMAIL PROTECTED] > -- The swapon problem self corrected after a reboot. Prior to the reboot I setup both swap partitions to use cryptsetup, something separate from the issues I was having with the swapoff, overwrite, mkswap, swapon failure. After setting up cryptsetup and X crashing for some reason (I never shutdown, the system stays up 24/7 whenever possible), I took the opportunity to reboot and both swap partitions came up as /dev/mapper/swap0 and /dev/mapper/swap1, and after setting up /etc/crypttab and another reboot dmesg says everything is working ok.
otoh, I still don't have an answer as to why the original failure without rebooting. Di. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
