I need to mount below harddisk.I try with mount /dev/sdb /mnt/external2 But unable to mount.Error in "device is busy".How to mount /dev/sdb fully.Any other option.please advice
Disk /dev/sdb: 250.0 GB, 250000000000 bytes
255 heads, 63 sectors/track, 30394 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 131 1052226 fd Linux raid autodetect
/dev/sdb2 132 8608 68091502+ fd Linux raid autodetect
/dev/sdb3 8609 17085 68091502+ fd Linux raid autodetect
/dev/sdb4 17086 30394 106904542+ 5 Extended
/dev/sdb5 17086 25562 68091471 fd Linux raid autodetect
/dev/sdb6 25563 26476 7341673+ fd Linux raid autodetect
/dev/sdb7 26477 27390 7341673+ fd Linux raid autodetect
/dev/sdb8 27391 28304 7341673+ fd Linux raid autodetect
/dev/sdb9 28305 29087 6289416 fd Linux raid autodetect
/dev/sdb10 29088 29609 4192933+ fd Linux raid autodetect
/dev/sdb11 29610 30131 4192933+ fd Linux raid autodetect
/dev/sdb12 30132 30132 8001 8e Linux LVM
/dev/sdb13 30133 30263 1052226 fd Linux raid autodetect
/dev/sdb14 30264 30394 1052226 fd Linux raid autodetect
/dev/sdb is the entire disk, you can't mount an entire disk unless the entire disk is just one partition.
What kind of RAID is it? Is it a software raid? You may not be able to mount it until you activate it with mdadm, in which case it'll become a new device, /dev/md*.
Maybe it's activated itself already. That would explain why it thinks it's busy -- it's been "eaten" by the software RAID driver. Try ls -l /dev/md* to see if you have any software RAID devices available. And df -h for good measure to see what devices you already have mounted where.
As you told we tried for each..
it shows error like..
~]# mount /dev/sdb5 /mnt/Mirror/sdbAll
mount: /dev/sdb5 already mounted or /mnt/Mirror/sdbAll busy
but
~]# umount /dev/sdb5
umount: /dev/sdb5: not mounted
~]# mdadm --detail /dev/md0
mdadm: md device /dev/md0 does not appear to be active.
~]# cat /proc/mdstat
Personalities : [raid1] [raid0]
md11 : active raid1 sdb2[0]
68091392 blocks [2/1] [U_]
md10 : active raid1 sdb3[0]
68091392 blocks [2/1] [U_]
md8 : active raid1 sdb5[0]
68091392 blocks [2/1] [U_]
md6 : active raid1 sdb6[0]
7341568 blocks [2/1] [U_]
...
... for all.
unused devices: <none>
~]# mount <<--- sdb not yet mounted.
/dev/sda2 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sda13 on /home type ext3 (rw)
/dev/sda11 on /opt type ext3 (rw)
/dev/sda10 on /tmp type ext3 (rw)
/dev/sda9 on /usr type ext3 (rw)
/dev/sda12 on /usr/local type ext3 (rw)
/dev/sda8 on /var type ext3 (rw)
/dev/sda14 on /var/files type ext3 (rw)
/dev/sda6 on /var/myfolder type ext3 (rw)
/dev/sda5 on /var/data1 type ext3 (rw)
/dev/sda3 on /var/intofolder type ext3 (rw)
/dev/sda1 on /boot type ext3 (rw)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
/dev/sdc on /mnt/external type ext3 (rw)
i got this info by viewing : linuxquestions.org - questions - linux-software-2/why-cant-i-mount-this-md0-raid-mdadm-and-software-raid-345232/ Why can't I mount this md0 raid? (mdadm and software raid)
My only Need is :: To get all data in "sdb" to be accessible
No problem if it comes in one directory or different directory.
I think this is a software RAID. You'll have to use the md* devices.
There you go. The software RAID is active, and that is why you can't use the raw /dev/sdb* devices. The MD driver has taken them over and provided md* devices in their place. sdb6 is available as md6, sdb5 is available as md8, etc, etc. Either it was setup this way from the start, or the system autodetected the RAID partitions and turned them into md devices for you.
You still can't use it all as one giant thing -- it never was one giant thing. But you should be able to mount these md1,md2,... devices individually.
Half the RAID seems to be missing, but since this was a mirror, it fortunately still works.
Since you didn't post the entire, unaltered output of mdstat I can't tell you where to mount which in what order.
