2008/12/3 Michael Lake <[EMAIL PROTECTED]>: > Hi Own and all > > Owen Townend wrote: >>> >>> # mdadm --assemble --run --uuid b6035660:c11a8a2e:7026aea2:99d23bfc >>> /dev/sdc5 >>> # mount /dev/md1 /mnt >>> >>> N.B. >>> I haven't checked the syntax, you may need to add /dev/md1 to the >>> mdadm line.. I don't have a box in front of me to check... >>> The general idea should be right though.. >> >> You can give 'missing' as a component device name along with /dev/sdc5 >> if mdadm gives a 'not enough devices' type error. > > Okies I worked out to give the uuid its -u or --uuid= so I'm using -u and > the magic number from the --examine output. > > Here is what I tried. > # /sbin/mdadm --assemble --run -u b6035660:c11a8a2e:7026aea2:99d23bfc > /dev/sdc5 missing > mdadm: cannot open device missing: No such file or directory > mdadm: missing has wrong uuid. > mdadm: no devices found for /dev/sdc5 > > I then tried specifying the /dev/md1 > > # /sbin/mdadm --assemble --run -u b6035660:c11a8a2e:7026aea2:99d23bfc > /dev/md1 > /dev/sdc5 missing > mdadm: no recogniseable superblock on /dev/sdc5 > mdadm: /dev/sdc5 has wrong uuid. > mdadm: cannot open device missing: No such file or directory > mdadm: missing has wrong uuid. > mdadm: no devices found for /dev/md1 > > In the above I added /dev/md1 for it to be assembled onto. > > By the way I do have a /dev/md1 existing already. But no /dev/md0 > > > (Also this new machine I'm trying to mount it on is a raid system using > mdraid which I gather is different software for raid to mdadm. I think the > older machine used mdadm and this new machine uses mdraid. It was setup by a > previous sysadmin so I'm learning.) > > Mike
I pulled the /dev/md1 from the 'prefered minor' that was in the examine output. You can use a different one without hassle. The ordering for the command is: Usage: mdadm --assemble md-device options-and-component-devices... The '--run' is because with a missing device it would usually only assemble the array and leave it stopped which is the safest default. Try # /sbin/mdadm --assemble /dev/md0 --run -u b6035660:c11a8a2e:7026aea2:99d23bfc /dev/sdc5 cheers, Owen. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
