Chris, Yes, the files are backed up, but since it is a boot drive I wanted to take it to the next level of preparedness.
Best regards, -- -- Glenn On Mon, Apr 6, 2020 at 5:28 PM Chris Albertson <[email protected]> wrote: > You can pipe the output of "dd" through gzip and compress the disk image. > It will be many times smaller. But in this case, where the drive is > actually making nose, I would ASAP do a dd copy to another drive (an SSD) > and then put the new drive in service. Make a second backup copy later. > > In fact if there is important data on the drive copy it now because a drive > making noise might not last long enough to do a full dd copy. > > On Mon, Apr 6, 2020 at 3:49 PM Jon Elson <[email protected]> wrote: > > > On 04/06/2020 04:10 PM, Glenn Edwards wrote: > > > Jon > > > > > > The drive is 500Gb SATA and I can hook up several. > > > > > > I 'man dd' on the old Ubuntu 8.04LTS and seems to be just a file copy > > > service. But I will try your suggestion when I boot off a LiveCD as > this > > > makes sense not to disturb the Hot drive. > > > > > > > > No, dd does not copy "files", it copies every block on the > > partition or whole drive, block-for-block. > > LILO or GRUB know the exact block location of the kernel and > > kernel loader, so only a dd copy > > will end up with those working immediately. Since the dd > > copies all the unused blocks on the drive, it can be quite a > > bit slower on a mostly empty disk. There are some > > blocksize options that make it run faster. > > > > If you create partitions and then do a cp of the old file > > systems to the new disk, the kernel and loader > > will be in different block locations, and LILO or GRUB will > > not be able to boot the OS. There is a > > way to fix this by booting from the live CD, but it is > > getting into guru territory. > > But, if you copy to a smaller disk, or want to change the > > partition sizes, then that is what you have to do. > > > > Jon > > > > > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > -- > > Chris Albertson > Redondo Beach, California > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > > _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
