구차니의 잡동사니 모음

       -m, --compression-mode=MODE

              Set  the  default compression mode. The default mode is priority

              which tries the compressors in a predefinied order  and  chooses

              the  first successful one. The alternatives are: none (mkfs will

              not compress) and size (mkfs will try all compressor and chooses

              the one which have the smallest result).

       -x, --disable-compressor=NAME

              Disable  a  compressor.  Use  -L to see the list of the avaiable

              compressors and their default states.

       -X, --enable-compressor=NAME

              Enable a compressor. Use -L to see  the  list  of  the  avaiable

              compressors and their default states.

       -y, --compressor-priority=PRIORITY:NAME

              Set  the priority of a compressor. Use -L to see the list of the

              avaiable compressors and their default priority.  Priorities are

              used by priority compression mode.

       -L, --list-compressors

              Show the list of the avaiable compressors and their states.

       -t, --test-compression

              Call  decompress  after  every compress - and compare the result

              with the original data -, and some other check.

[링크 : http://manpages.ubuntu.com/manpages/saucy/man1/mkfs.jffs2.1.html] 

Last login: Thu Jan  1 00:01:16 1970

ubuntu@localhost:~$ sudo snappy update

date

Traceback (most recent call last):

  File "/usr/bin/snappy", line 25, in <module>

    status = Main().__main__()

  File "/usr/lib/python3/dist-packages/snappy/main.py", line 195, in __main__

    return callback(args)

  File "/usr/lib/python3/dist-packages/snappy/main.py", line 511, in _do_update

    for pkg in ClickDataSource().upgradable_apps]

  File "/usr/lib/python3/dist-packages/snappy/click.py", line 180, in upgradable_apps

    all_updates_list = repo.get_upgradable()

  File "/usr/lib/python3/dist-packages/click/repository.py", line 183, in get_upgradable

    headers={"content-type": "application/json"})

  File "/usr/lib/python3/dist-packages/click/network.py", line 70, in http_request

    curl.perform()

pycurl.error: (60, 'server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none')

$ sudo date 0407225715

Tue Apr  7 22:57:00 UTC 2015

$ sudo snappy update

ubuntu-core    124 MB     [==========================================]    OK 

Applying [|]

Applying: Done

Reboot to use the new ubuntu-core.