![]() ![]() Guide to use UUID for consistent booting.By default, ksck checks that master and tablet server processes are running, and that table metadata is consistent. Improve efficiency with condition variables Storage management magic with Logical Volume ManagementĪ simple and nimble tool for memory sharing Use the search field to search for topics and keywords in real-time.Īn intro to the great language with the strange nameįundamental programming in the Bourne again shell (bash) Then edit /etc/fstab as before, making sure the directory where you want to mount it in the tree exists.īrowse all our available articles below. First, obtain which drive designation (following the /dev/sdX convention) the new drive has:Īssuming your new hard drive is sdb, run the blkid command again: If you add more drives to your system, updating /etc/fstab is fairly straightforward. When your Funtoo system boots, congrats! You now have a system that always mounts the partitions in the tree consistently and correctly. But it won't hurt if you leave them in place, just make sure they remain commented out.ĭouble-check the entries and syntax are correct, then reboot. ![]() ![]() Once you've established your Funtoo system works with the UUID entries, you can remove the /dev/sdX lines. Obviously, the UUID numbers will differ on your system and most likely so is the partitioning and perhaps the file system (jfs in this example) used.Īs you've noticed, both methods of designating partitions are present, shown for comparison only, with the /dev/sdX entries commented out. etc/fstab - /etc/fstab #/dev/sda1 /boot jfs defaultsđ 2 Next thing is to edit the fstab file so it resembles this example: Next, obtain the UUID's of each partition in your system. To be safe, copy the contents of this file to a backup location. So, it's a good idea to use this UUID stuff, right? But how? Well, that's exactly the purpose of this guide.Īs is common in Linux, everything is a file (except for networking stuff, but that's beyond the scope of this guide) and so is the /etc/fstab file. By using this UUID number in fstab the kernel can locate the correct partition to mount in the tree at the correct place and do so consistently. Due to its size, it's highly unlikely another partition in the machine will have the exact same number assigned to it. It works this way: each time a partition is created, the partitioning tool also creates a random, large, unique number for it and assigns this to the partition. The result is a kernel panic! Fortunately, Linux has a solution: UUID or Unified Universal IDentification. This works quite alright if you have only a single disk in your system, but modern computers, servers included, have an increasing amount of disks connected to their hardware and with that, the chance of 'getting it wrong' increases significantly. Since the dawn of time, Unix time anyway, the convention was to list each partition from /dev. When your system boots, the kernel looks at the fstab file to learn which partitions are available and where these should be mounted in the tree. Get an awesome Funtoo container and support Funtoo! See Funtoo Containers for more information. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |