If your drive has SMART data available, this question may already be answered.
Drive Genius scan/extended does what you want to do as safely as it is possible to do it (which may still lose some data) and has been well pre-tested for you. > On Mar 26, 2016, at 8:30 PM, Michael <keybou...@gmail.com> wrote: > > OK, now for a switch: a DD question. > > I was able to read the entire drive (cat /dev/rdisk0 > /dev/null) without > error. > So, I want to try a "write each sector back in place", to see if the drive is > still alive or dying. > > My thinking was simple: > > dd if=/dev/rdisk0 of=/dev/rdisk0 bs=2560 > > thinking that would would read 10 sectors, write those same 10 sectors, and > then continue. > > My concern? With the same file for input and output, would it write starting > at block 0, or would it read 0-9, and then write 10-19? > > Also: Is there a better way to re-write the contents of a hard drive? > > > On 2016-03-26, at 7:14 PM, Carl Hoefs <newsli...@autonomy.caltech.edu> wrote: > >> I believe it would use an Ultra ATA/100 hard drive (60GB?). Not sure about >> availability of those anymore... >> -Carl >> >>> On Mar 26, 2016, at 7:10 PM, Michael <keybou...@gmail.com> wrote: >>> >>> Hmm ... what kind of drive do I put in this laptop? >>> >>> iBook G4, 15 inch ... 1 GB memory. >>> >>> (I use it primarily for a second screen, and playing dos games in QEMU). >>> >>> On 2016-03-26, at 7:08 PM, Carl Hoefs <newsli...@autonomy.caltech.edu> >>> wrote: >>> >>>> Disk Warrior can work wonders, but you'd probably be better off getting a >>>> new drive for that $120, and reloading your Time Machine backup onto it. >>>> When you start getting file system corruption, it's usually the fault of >>>> the disk (as I learned the hard way :O) >>>> -Carl >>>> >>>> >>>>> On Mar 26, 2016, at 6:30 PM, Michael <keybou...@gmail.com> wrote: >>>>> >>>>> At $120, it's not worth that much :-). >>>>> >>>>> I'm wondering if I could get a reinstall from the genius bar. >>>>> >>>>> On 2016-03-26, at 4:33 PM, Macs R We <macs...@macsrwe.com> wrote: >>>>> >>>>>> If you have disk warrior, boot from it and try to repair the drive. If >>>>>> you don't have it, it's really, really worth getting. >>>>>> >>>>>>> On Mar 26, 2016, at 3:59 PM, Michael <keybou...@gmail.com> wrote: >>>>>>> >>>>>>> I have an iBook G4, running 10.5.8. Today, it rebooted on me, at >>>>>>> "random". >>>>>>> >>>>>>> During startup, it complained about problems with the root file system, >>>>>>> and said that an fsck would be forced at next startup. So, I forced a >>>>>>> reboot from the login screen. >>>>>>> >>>>>>> Naturally, it did not do the fsck. So, a reboot into single user mode. >>>>>>> >>>>>>> Fsck -f tells me the following: >>>>>>> >>>>>>> Checking Journaled HFS plus volume >>>>>>> Checking extents overflow file >>>>>>> Checking catalog file >>>>>>> Keys out of order (4, 704) >>>>>>> Rebuilding catalog B-tree >>>>>>> The volume could not be repaired >>>>>>> Exited with signal 8 >>>>>>> >>>>>>> What do I do at this point to recover? I have a full time machine >>>>>>> backup. >>>>>>> >>>>>>> --- >>>>>>> Entertaining minecraft videos >>>>>>> http://YouTube.com/keybounce >>>>>>> >>>>>>> _______________________________________________ >>>>>>> MacOSX-talk mailing list >>>>>>> MacOSX-talk@omnigroup.com >>>>>>> http://www.omnigroup.com/mailman/listinfo/macosx-talk >>>>>> >>>>> >>>>> --- >>>>> Entertaining minecraft videos >>>>> http://YouTube.com/keybounce >>>>> >>>>> _______________________________________________ >>>>> MacOSX-talk mailing list >>>>> MacOSX-talk@omnigroup.com >>>>> http://www.omnigroup.com/mailman/listinfo/macosx-talk >>>> >>> >>> --- >>> Entertaining minecraft videos >>> http://YouTube.com/keybounce >>> >> > > --- > Entertaining minecraft videos > http://YouTube.com/keybounce > > _______________________________________________ > MacOSX-talk mailing list > MacOSX-talk@omnigroup.com > http://www.omnigroup.com/mailman/listinfo/macosx-talk _______________________________________________ MacOSX-talk mailing list MacOSX-talk@omnigroup.com http://www.omnigroup.com/mailman/listinfo/macosx-talk
