On 22/09/2009, at 9:35 AM, Bazooka Joe wrote: > I have a usb hd that I use for backup. Occasionally it dies. > > scsi 6:0:0:0: rejecting I/O to dead device > scsi 6:0:0:0: rejecting I/O to dead device > scsi 6:0:0:0: rejecting I/O to dead device > scsi 6:0:0:0: rejecting I/O to dead device > Buffer I/O error on device sdc1, logical block 0 > lost page write due to I/O error on sdc1 > EXT2-fs error (device sdc1): read_inode_bitmap: Cannot read inode > bitmap - block_group = 129, inode_bitmap = 4227073 > scsi 6:0:0:0: rejecting I/O to dead device > scsi 6:0:0:0: rejecting I/O to dead device > scsi 6:0:0:0: rejecting I/O to dead device > Buffer I/O error on device sdc1, logical block 0 > lost page write due to I/O error on sdc1 > EXT2-fs error (device sdc1): ext2_readdir: bad page in #2 > scsi 6:0:0:0: rejecting I/O to dead device > scsi 6:0:0:0: rejecting I/O to dead device > Buffer I/O error on device sdc1, logical block 0 > lost page write due to I/O error on sdc1 > EXT2-fs error (device sdc1): ext2_get_inode: unable to read inode > block - inode=2, block=1027 > scsi 6:0:0:0: rejecting I/O to dead device > scsi 6:0:0:0: rejecting I/O to dead device > Buffer I/O error on device sdc1, logical block 0 > lost page write due to I/O error on sdc1 > EXT2-fs error (device sdc1): ext2_readdir: bad page in #2 > > If i unmount it and try to remount it it says sdc1 does not exist. > > I am not at the location so physically unplugging then replugging in > the drive isn't a convenient option. > > How can I get the os to rescan the usb device so I can remount? The sg_reset command might work: http://linux.die.net/man/8/sg_reset Oliver > > thx > bazooka > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos