* Khalid Schofield <[EMAIL PROTECTED]> [2008-09-02 11:02:21]: > On 1 Sep 2008, at 22:41, johan beisser wrote: > >> On Sep 1, 2008, at 11:44 AM, Khalid Schofield wrote: >> >>> Hi, >>> I'm running openbsd 4.0 (yeh old I know but it's a vital system that >>> I'm replacing but it processes data that makes a lot of money). >> >> Better replace the disk tomorrow, then. Or, implement the software on a >> new system, and take the hit on some downtime while it's being >> replaced. >> > > Thanks for the tip. Just bought one. > >> Those are signs of odd errors on the physical media itself. OpenBSD >> can (and may) crash due to bad sectors and failed writes. I did allow a >> system to limp along on a bad drive for nearly a year while I tried to >> source a very old (no longer available) drive. >> > > The old disk is a 40Gb IDE disk and the new one one is a 120Gb disk. If I > want to clone the disk can I just cat /dev/sd0 > /dev/sd1 if I boot off > the install cd? I will rebuild this system on another box but to make > sure the disk doesn't die instantly I want to clone it asap since it > makes cash. > > I've got another system on the boil with a 36Gb 15k scsi disk and decent > hardware but I want to keep this mac mini server going just long enough > to role the new server out. > > Last night I connected a USB disk and tried to use dump to clone /dev/ > rwd0a but it was only dumping the first 4Gb's which was irritating to > put it mildly. I used dump -0auf /usb/root.dump /dev/rwd0a > > I also tried dump -0auB 4198400 -f /usb/root.dump /dev/rwd0a and still > it bombs out asking for the next media to be inserted after 4gb's. > > > > Doesn't matter what I try still only dumps 4gb's. The system is a g4 > which is a 32bit cpu which is the only clue I thought of that would > limit me to 4gb's. > > > khalid > >
If imaging a failing disk is what you really want, then I recommend ddrescue http://www.gnu.org/software/ddrescue/ddrescue.html gnu bleh. -- Travers Buda
