Setting correct size for “cryptsetup: WARNING: Option 'size' missing in crypttab for plain dm-crypt mapping...












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I have a full disk encryption using ecryptfs, after upgrading to 18.10 a warning message started to appearing at boot:




cryptsetup: WARNING: Option 'size' missing in crypttab for plain
dm-crypt mapping root. Please read /usr/share/doc/cryptsetup/README.initramfs and add the correct 'size'
option to your crypttab(5).




From what I see at /usr/share/doc/cryptsetup-initramfs/README.initramfs.gz I should edit /etc/cryptsetup and set the correct size, but how should this size be calculated for my system?



This is the content of /etc/crypttab:



 cryptswap1 UUID=1d1XXXXXXXXXXXX /dev/urandom swap,offset=1024,cipher=aes-xts-plain64









share|improve this question



























    0















    I have a full disk encryption using ecryptfs, after upgrading to 18.10 a warning message started to appearing at boot:




    cryptsetup: WARNING: Option 'size' missing in crypttab for plain
    dm-crypt mapping root. Please read /usr/share/doc/cryptsetup/README.initramfs and add the correct 'size'
    option to your crypttab(5).




    From what I see at /usr/share/doc/cryptsetup-initramfs/README.initramfs.gz I should edit /etc/cryptsetup and set the correct size, but how should this size be calculated for my system?



    This is the content of /etc/crypttab:



     cryptswap1 UUID=1d1XXXXXXXXXXXX /dev/urandom swap,offset=1024,cipher=aes-xts-plain64









    share|improve this question

























      0












      0








      0








      I have a full disk encryption using ecryptfs, after upgrading to 18.10 a warning message started to appearing at boot:




      cryptsetup: WARNING: Option 'size' missing in crypttab for plain
      dm-crypt mapping root. Please read /usr/share/doc/cryptsetup/README.initramfs and add the correct 'size'
      option to your crypttab(5).




      From what I see at /usr/share/doc/cryptsetup-initramfs/README.initramfs.gz I should edit /etc/cryptsetup and set the correct size, but how should this size be calculated for my system?



      This is the content of /etc/crypttab:



       cryptswap1 UUID=1d1XXXXXXXXXXXX /dev/urandom swap,offset=1024,cipher=aes-xts-plain64









      share|improve this question














      I have a full disk encryption using ecryptfs, after upgrading to 18.10 a warning message started to appearing at boot:




      cryptsetup: WARNING: Option 'size' missing in crypttab for plain
      dm-crypt mapping root. Please read /usr/share/doc/cryptsetup/README.initramfs and add the correct 'size'
      option to your crypttab(5).




      From what I see at /usr/share/doc/cryptsetup-initramfs/README.initramfs.gz I should edit /etc/cryptsetup and set the correct size, but how should this size be calculated for my system?



      This is the content of /etc/crypttab:



       cryptswap1 UUID=1d1XXXXXXXXXXXX /dev/urandom swap,offset=1024,cipher=aes-xts-plain64






      encryption 18.10 ecryptfs cryptsetup






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 13 at 21:23









      marcanuymarcanuy

      259315




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          Add the size like size=256 to /etc/crypttab configuration:



          cryptswap1 UUID=1d1XXXXXXXXXXXX /dev/urandom swap,offset=1024,cipher=aes-xts-plain64,size=256





          share|improve this answer























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            Add the size like size=256 to /etc/crypttab configuration:



            cryptswap1 UUID=1d1XXXXXXXXXXXX /dev/urandom swap,offset=1024,cipher=aes-xts-plain64,size=256





            share|improve this answer




























              0














              Add the size like size=256 to /etc/crypttab configuration:



              cryptswap1 UUID=1d1XXXXXXXXXXXX /dev/urandom swap,offset=1024,cipher=aes-xts-plain64,size=256





              share|improve this answer


























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                Add the size like size=256 to /etc/crypttab configuration:



                cryptswap1 UUID=1d1XXXXXXXXXXXX /dev/urandom swap,offset=1024,cipher=aes-xts-plain64,size=256





                share|improve this answer













                Add the size like size=256 to /etc/crypttab configuration:



                cryptswap1 UUID=1d1XXXXXXXXXXXX /dev/urandom swap,offset=1024,cipher=aes-xts-plain64,size=256






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Jan 13 at 21:24









                marcanuymarcanuy

                259315




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