Date: Sat, 12 Feb 2011 01:01:15 +0000 From: Bruce Cran <bruce@cran.org.uk> To: "Julian H. Stacey" <jhs@berklix.com> Cc: hackers@freebsd.org Subject: Re: memstick.img is bloated with 7% 2K blocks of nulls Message-ID: <20110212010115.000066db@unknown> In-Reply-To: <201102120055.p1C0swnC069033@fire.js.berklix.net> References: <20110211192227.00002188@unknown> <201102120055.p1C0swnC069033@fire.js.berklix.net>
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On Sat, 12 Feb 2011 01:54:58 +0100 "Julian H. Stacey" <jhs@berklix.com> wrote: > -O filesystem-type > Use 1 to specify that a UFS1 format file system be > built; use 2 to specify that a UFS2 format file system be built. The > default format is UFS2. > If anyone fancies looking deeper, please do :-) I checked with dumpfs that memstick.img is UFS1. Also, mounting /dev/md0 confuses the kernel into ultimately panic'ing, since /dev/md0a is the proper slice. For the mfsroot.gz file from the CD ISOs: # mdconfig -a -f mfsroot md0 # mount /dev/md0a /mnt # ls /mnt ls: /mnt: Bad file descriptor # cd /mnt cd: /mnt: Not a directory # vim /mnt panic: ffs_read: type 0 kdb_enter() panic() ffs_read() vn_read dofileread() kern_readv() read() syscallenter() syscall() Xfast_syscall() -- Bruce Cran
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