[Bug 1855130] Re: idea: fast install with dd

[Корбанов Динар]

as i remember, i have seen something like this already in puppy linux:
as i remember, it can copy the squashfs file onto hdd, and thus install
it, and copying one large file must be also going much faster, than its
contents copied file by file and configured etc.

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Title:
  idea: fast install with dd

Status in ubiquity package in Ubuntu:
  New

Bug description:
  as i see, ubuntu live cd system is almost same as the installed
  system. some differences are: other user name; other locale; gparted
  is not installed; bunch of some restricted software like mp3 is
  selected to install or not; gui language is selected; separate mount
  points and file systems for directories can be used upon installation.
  i usually use just one "/" partition and one swap and ext4
  filesystem... as i know every package is copied, uncompressed and
  configured separately during installation. as i know, copying a
  partition (a whole file system) with dd is several times faster than
  copying data file by file, because disk head has not to move much. so,
  maybe you could just copy the whole file system of the running live
  cd, and then do some changes like renaming user, changing password,
  removing or installing mp3 etc, installing translation packages. i
  have now understood, that live cd filesystem is squashfs, it is
  different from ext4. but, i will report this "bug" anyway. maybe on
  the fly conversion from squashfs to ext4 is possible, or modify
  squashfs and get ext4 inside of squashfs. as i know, difference of
  ext4 file system depending on partition size is quite small, and file
  system can be growed quite fastly.

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