Date: Sat, 08 Dec 2012 00:20:09 +0100 From: Bas Smeelen <b.smeelen@ose.nl> To: freebsd-questions@freebsd.org Subject: Re: 9.1-RC3 LiveCD missing features Message-ID: <50C279A9.1070509@ose.nl> In-Reply-To: <CAFYkXjnkdjjRhuU6nUYCo4bHMiB9WspQy1Da9ZWs=0cNzYQJeA@mail.gmail.com> References: <CAFYkXj=R=V=3pUH9FbKq3pdqtga-EuJuTB1avZxi2bkLhUs5WA@mail.gmail.com> <50C26999.6090802@gmail.com> <50C26EF3.5070300@ose.nl> <CAFYkXjnkdjjRhuU6nUYCo4bHMiB9WspQy1Da9ZWs=0cNzYQJeA@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 12/08/12 00:05, Tomek CEDRO wrote: On 12/07/12 23:11, Chuck Burns wrote: > On 12/7/2012 3:50 PM, CeDeROM wrote: >> Hello >> >> I have tried to chceck for badblocks on my / but I did not find >> badblocks >> program on LiveCD and there is no option to install it. This is very >> useful >> utility, please add it as part of LiveCD >> >> Also there is a problem with DHCP based workstations using LiveCD - >> although interface gets configured it is impossible to update >> /etc/resolv.conf (by dhclient and by hand) and so this workstation >> pretty >> useless for IPv4 (is it more usable on IPv6?). Please update >> >> Thank you >> Tomek >> >> > > dd if=/dev/zer of=/dev/ada0 > > ^^^ There's your "badblocks" program. Any hard drive made in the last > decade have been self-remapping.. Attempting to write to a bad block > will cause the hard drive to remap an unused sector into it's place, > until the drive runs out of said "unused" backup sectors, and at that > time, will begin simply begin just "losing" storage space... IE the > number of total sectors on the drive will begin to shrink. > /dev/zero Badblocks is outdated for more than 17 years I guess The dd mentioned above will let the firmware remap all bad sectors until there are no spare sectors left (and wipe anything on disk as a bonus ;then you can begin to think about replacing your harddrive. As for DHCP, it works for me when booting from a netinstall for instance or going to fixit. Tomek, please try to describe more accurately what you are doing and try to accomplish > As I get ffs_valloc kernel panic on my / I want to check for badblocks but > cannot do that from the system itself so I need another FreeBSD instance to > run badblocks on unmounted /. There are no badblocks on LiveCD and I cannot > simply download it with pkg_add -r. Installing another system just to test > existing one seems silly. It would be nice to finally have swiss army knife > on generic LiveCD FreeBSD install, not using linux windows hirens etc :-) > > I have just started dd if=root of=root from LiveCD, Ill let you know if > that worked :-) I will be surprised what that will do for you I have lloked at the picture and all I can come up wih is either bad hardware or a very strange software/system configuration. Good luck Please reply to this list if any
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?50C279A9.1070509>