leo@aai.uu.net (Leo Pinard) (01/18/90)
In article <1990Jan12.092215.1567@aai.uu.net> I write: > >What is the best way to make compressed backups? I have been trying >things like: > >find /usr -depth -print | cpio -oBmc | compress | dd of=/dev/rmt8 > >but I've been having problems with segmentation faults and core dumps. >Another problem with this method is that everything must fit on one >tape. Is there another or better way to do this? > I have done some experimenting and it is cpio that is dumping core. This happens at the same place in my test files on both our Sun 3 and Sun 4 running 4.0.3 when listing the files in the archive using cpio -itvc <archive # archive is ~20MB in this test After listing about 670 files containing about 6.7MB I get a segmentation fault/core dump. Am I doing something wrong here or is there a problem with Sun cpio and/or OS? Isn't this the kind of thing people need to do with cpio all the time? I received no suggestions from anyone about how multi-volume compressed backups could be done. Is it not possible without having sufficient disk space to store the intermediate file? Thanks! Leo leo@aai.uu.net uunet!aai!leo