Jump to content

how to create an image file from a macos usb installer?


4 posts in this topic

Recommended Posts

I have a flash drive that is a clover macos installer. I'd like to keep that drive around so I can do it again in the future, but I don't want to keep this flash drive just laying around not being used. I'd like to create an image of the contents so I can repurpose the drive, but be able to restore it back to it at a later point ( make it bootable again too ).

i tried Disk utility,its not work,cant boot up,seems lack efi partition.

thanks.

  • 2 weeks later...
  • 2 weeks later...

Since OC and Clover kexts may be updated frequently, if you have an installer that uses hfs+ you can back up the installer portion using partclone from linux where  x in /dev/sdxy is the lsblk -f  disk and y is the lsblk -f  partition.

 

sudo partclone.hfsp -c -s /dev/sdxy | pbzip2 -c9 > /your/backup/location/whatevernameyouwant.pcl.gz

 

Example: sudo partclone.hfsp -c -s /dev/sdb2 | pbzip2 -c9 > /media/backup_mac_injstaller.pcl.gz

 

Make sure you have pbzip and compression such as lz4 installed in linux.

 

Using partclone over dd backs up only used sectors.

Edited by HenryV
  • 4 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...