# readall(1)

    NAME
         readall - read a device quickly to check for bad blocks

    SYNOPSIS
         readall [-bt] file

    OPTIONS

         -b   Produce shell script on stdout that calls badblocks

         -t   Just print device size

    EXAMPLES

         readall /dev/hd0    # Read all of /dev/hd0

         readall -b /dev/hd1 >s
                             # Generate shell script on s

    DESCRIPTION

         Readall reads all of the named device in large chunks. It  reports  about
         blocks  that  it  cannot  read.  Unlike diskcheck, it does not attempt to
         write on the disk, making it safer to use when one  is  worried  about  a
         sick  system.   When  the  -b flag is given, the output is a shell script
         that calls the badblocks program to marked all the bad blocks.   Whenever
         installing MINIX, it is wise to run readall with the -b flag first on all
         the hard disks.

    SEE ALSO
         badblocks(8).