I've just fitted two disks to my home server. I'm trying to format and then raid them but I'm getting a problem that hours of Googling hasn't resolved this.
The error that I'm getting is:
# mkfs.ext3 /dev/sdb1 mke2fs 1.39 (29-May-2006) /dev/sdb1 is apparently in use by the system; will not make a filesystem here! # df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 4.0G 1.9G 2.0G 49% / none 380M 0 380M 0% /dev/shm /opt/xensource/packages/iso/XenCenter.iso 51M 51M 0 100% /var/xen/xc-install # mount -t ext3 /dev/sdb1 /mnt/b mount: /dev/sdb1 already mounted or /mnt/b busy
I'm new to this and it's got me beat. I wouldn't ask if I hadn't done my research first. Thanks.
# mount /dev/sda1 on / type ext3 (rw) none on /proc type proc (rw) none on /sys type sysfs (rw) none on /dev/pts type devpts (rw) none on /dev/shm type tmpfs (rw) /opt/xensource/packages/iso/XenCenter.iso on /var/xen/xc-install type iso9660 (ro,loop=/dev/loop0) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) # mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdb1 /dev/sdc1 mdadm: chunk size defaults to 64K mdadm: Cannot open /dev/sdb1: Device or resource busy mdadm: /dev/sdc1 appears to contain an ext2fs file system size=976760000K mtime=Tue Jul 10 21:52:00 2012 mdadm: create aborted # cat /proc/swaps Filename Type Size Used Priority /var/swap/swap.001 file 524280 0 -1