booting single user mode
Looking for conformation. On booting into single user mode all files systems are unmounted except / which is mounted read only. Is this true? Will dump/restore commands work? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: booting single user mode
On Mon, Feb 22, 2010 at 10:39:57AM +0800, Aiza wrote: Looking for conformation. On booting into single user mode all files systems are unmounted except / which is mounted read only. Is this true? Will dump/restore commands work? Generally yes. Make sure they are in your path and available to you in whatever filesystem[s] you have mounted. I think they normally are. I believe dump and restore are in /sbin which should be part of your root filesystem and not in its own partition. ==Never put those things that should be in root in their own partitions== To check where they are use 'which' which dump or which restore will tell you where they are. When you dump a non mounted filesystem, I think you have to use the partition name, not the mount name. So, instead of dump 0afL /dev/nsa0 /usr it might be dump 0afL /dev/nsa0 /dev/ad0s1d if your mount a partition /dev/ad0s1d as /usr normaly. You don't really need to restore to an unmounted partition, though using single user might be useful. If you are restoring in single user, do something like this. fsck -a mount -u / mount -a cd /usr restore -rf /dev/nsa0 Note: I am using /dev/nsa0 as where the dump media is. that would be a tape device. You need to adjust this for where you really write the dump or have the dump stored. jerry ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: booting single user mode
Jerry McAllister wrote: On Mon, Feb 22, 2010 at 10:39:57AM +0800, Aiza wrote: Looking for conformation. On booting into single user mode all files systems are unmounted except / which is mounted read only. Is this true? Will dump/restore commands work? Generally yes. Make sure they are in your path and available to you in whatever filesystem[s] you have mounted. I think they normally are. I believe dump and restore are in /sbin which should be part of your root filesystem and not in its own partition. ==Never put those things that should be in root in their own partitions== To check where they are use 'which' which dump or which restore will tell you where they are. When you dump a non mounted filesystem, I think you have to use the partition name, not the mount name. So, instead of dump 0afL /dev/nsa0 /usr it might be dump 0afL /dev/nsa0 /dev/ad0s1d if your mount a partition /dev/ad0s1d as /usr normaly. You don't really need to restore to an unmounted partition, though using single user might be useful. If you are restoring in single user, do something like this. fsck -a mount -u / mount -a cd /usr restore -rf /dev/nsa0 Note: I am using /dev/nsa0 as where the dump media is. that would be a tape device. You need to adjust this for where you really write the dump or have the dump stored. jerry Think mistake here dump 0afL /dev/nsa0 /usr Whole reason for doing dump in single user mode is no snapshot so no need for -L flag in your example dump command. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
