Usually creating RAM disks works with the following commands hdid -nomount ram:// Returns e.g. /dev/disk2 Then I would format the disk, with say newfs_hfs /dev/disk2 followed by mounting it: mount -t hfs /dev/disk2 /some/mount/target This procedure doesn't seem to work with APFS. I'm on High Sierra beta 9. The mount command doesn't output any error, but the path is not mounted. In my case, after the hdid command finished, newfs_apfs -i /dev/disk2 yields nx_kernel_mount:1364: checkpoint search: largest xid 1, best xid 1 @ 1 nx_kernel_mount:1422: sanity checking all nx state. ![]() ![]() Please be patient. Spaceman_metazone_init:278: no metazone for device 0, of size 209715200 bytes, block_size 4096 apfs_newfs:18075: FS will NOT be encrypted. When I then enter mount -t apfs /dev/disk2 /some/target/path then the mount commands seems to work for 2 seconds, doesn't give any output and the mount was NOT succesful. Can anyone tell me how to actually make a APFS RAM disk s.t. It works?:p PS: I've also tried something like diskutil partitionDisk /dev/disk2 GPT APFS myvolumename 0b which does mount the volume to /Volumes/myvolumename but creates yet another disk ( disk3 in this case) which seems odd to me! Found a solution: hdid -nomount ram:// diskutil erasedisk where is taken from diskutil listFilesystems from the 'Personality' column. Yes, it seems weird to me too that you may have to quote this parameter, e.g. When specifying case-sensitive variants, but oh well. Is 2048 * desired size in megabytes The last command formats the RAM disk and mounts it to /Volumes/ It seems to be the case that when now entering diskutil list that you will see two new disks, the one hdid created, and a synthesized one. To destroy the RAM disk again, call diskutil eject, e.g. Diskutil eject /dev/disk2 This will do all the work for you, unmounting the /Volumes/ path and destroy the two disks, releasing your memory. Keep in mind that the minimum/maximum values for depend on the chosen. A Step-by-Step Guide to Backing up Mac to an External Hard Drive. Note: the screenshots below are taken based on macOS 10.12.5 Sierra. If your Mac has High Sierra or an older version, differences may exist, but the process should look similar to what’s displayed below. Step 1: Connect your external hard drive. I have to move files from my Mac with High Sierra 10:13 on a hard drive, formatted in FAT32. Unfortunately, even for smaller files of 4GB, it tells me that it exceeds the space to move files. I read that it is a problem of High Sierra because the FAT32 is considered as FAT16 and I can not move files larger than 2GB. Num lock app for mac. To set a Mac lock screen message, head to System Preferences > Security & Privacy > General. But not everyone who finds a lost Mac is a thief, and it would be nice to provide these good samaritans with the information they need to return your Mac to you. Many traveling businesspeople choose to tape business cards to their laptops, but we don’t want such an inelegant solution to mar your Mac’s hardware, so we’ll use OS X’s built-in lock screen message feature instead. Also, cannot always be chosen arbitrarily. Exemplary, FAT32 requires it to consist of upper-case letters! I am trying to create a Windows Bootcamp partition on High Sierra but when I got to select the target disk it tells me that there is no space left on the macOS container. My SSD has 250 GB free space and it has a single APFS container with a single APFS Volume. How can I fix this? The computer is a late 2012 Mac Miniand it has a 16GB RAM and a primary SSD (512GB) and a secondary HDD (1TB). I would like to install Windows 10 to the primary SSD.
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