Move root filesystem to other slice

UNIX Solaris
1

Hi,

df -h display:

# df -h
Filesystem size used avail capacity Mounted on
/dev/dsk/c1t0d0s0 9.8G 8.1G 1.7G 84% /
/proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
fd 0K 0K 0K 0% /dev/fd
swap 1.0G 152K 1.0G 1% /var/run
swap 1.1G 24M 1.0G 3% /tmp
/dev/dsk/c1t0d0s3 57G 13G 43G 24% /adv1

I'd like to copy Os on /dev/dsk/c1t0d0s3 this slice has 43G free space but try to
1) mkdir /filesystemcopy
2) mount /dev/dsk/c1t0d0s3 but it complaining that: # mkdir /filesystemtest
# mount /dev/dsk/c1t0d0s3 /filesystemtest
mount: /dev/dsk/c1t0d0s3 is already mounted, /filesystemtest is busy,
or the allowable number of mount points has been exceeded
/avd1 is live database and application.

Could someone help please?

Thanks

2

please use code tag to make your posts better readable for others and watchout to post in the right subforum. thread moved to "solaris". and choose a better title next time. see our rules about this!

3

Couple of things...

  1. Copying live / is not a recommend process.
  2. If you have /dev/dsk/c1t0d0s3 mounted as /adv1, you cannot mount it again.

If you simply want a "copy" of the data somewhere, you can try this:

mkdir /adv1/root_disk_archive
ufsdump 0f - / | ( cd /adv1/root_disk_archive; ufsrestore xvf - )

You will not be able to boot from /dev/dsk/c1t0d0s3, but you will have a copy...

If you want a copy of / for redundancy, buy a second disk and mirror it.

4

Thanks lot!

Can i later put this copy of filesystem somewhere else or on thw tape, if i need to use ir later in case of emmergency, then can i restore it to / (root) to have the same thing back again???

5

Yes you can