Creating Compressed Loop FS from stdin

From: Matteo Riondato (rionda_at_freesbie.org)
Date: 12/29/04

  • Next message: Maxim Sobolev: "Re: Creating Compressed Loop FS from stdin" 
    To: freebsd-hackers@freebsd.org
Date: Wed, 29 Dec 2004 16:11:56 +0100

    Hi folks!

    I think you know what FreeSBIE
    is and that we use compressed loop filesystems for /usr and /var
    directories on our LiveCD.
    At the moment, to create compressed filesystems, we rely on
    sysutils/cloop-utils, but I know /usr/bin/mkuzip is present in HEAD and
    in RELENG_5 and would like to switch to that. However, it seems that I
    cannot create valid cloopfs with mkuzip.
    To create the cloop image, I use:

    /usr/local/bin/mkisofs -lrJL $FREESBIEBASEDIR/usr | /usr/bin/mkuzip -v \
    -o $FREESBIEBASEDIR/cloop/usr.cloop -s 65536 /dev/stdin

    (similar line for /var clooped image)

    Creation of the clooped images does finish without any error, but I
    cannot mount it:
    #kldload geom_uzip
    #mdconfig -a -t vnode usr.cloop
    md0
    #mount_cd9660 /dev/md0.uzip /mnt
    mount_cd9660: /dev/md0.uzip: Input/output error

    Can you give me any hint? Perhaps I'm missing something in the creation
    of the image.
    I will provide further information if needed.
    Thank you in advance.
    Best Regards 

    -- 
Rionda aka Matteo Riondato
GUFI Staff Member (http://www.gufi.org)
FreeSBIE Developer (http://www.freesbie.org)
BSD-FAQ-it Main Developer (http://utenti.gufi.org/~rionda)
Sent from: kaiser.sig11.org running FreeBSD-6.0-CURRENT

  • Next message: Maxim Sobolev: "Re: Creating Compressed Loop FS from stdin"