[CentOS] Copying a live system
Leon Fauster
leonfauster at googlemail.com
Tue May 3 14:33:32 UTC 2016
Am 03.05.2016 um 15:55 schrieb Timothy Murphy <gayleard at eircom.net>:
> I want to backup my current CentOS-7.2 system to another drive.
> Is it safe to copy the system while it is running?
> Eg by
> mount /dev/sdb5 /mnt
> rsync -HPaxvz /. /mnt/
> I've found contradictory advice on the web.
It depends, the running services should answer ... for a mysqld running system:
Delete the -x option above and add
--exclude /proc --exclude /sys --exclude /mnt --exclude /var/lib/mysql
and then
mysqldump --add-drop-table -c --create-options -x -u root -p -A > mysqldump-$(date +%s).sql
for example ...
--
LF
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