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Monday, March 10, 2025

startup – Easy methods to make and use an USB keep on with GParted that may boot on a Mac?


I’ll reply my very own query. Since I had lots of bother creating Dwell USBs on Ubuntu and Mac and needed to dig a bit deeper into the topic and also will listing the output of the profitable partition schemes.

  • Obtain .iso from right here underneath “secure releases”. If uncertain, selected the 32bit-Model.

  • Put a USB stick within the slot and look into Disk Utility for its gadget quantity (disk1, disk2, diskX, and so on). This may be discovered by clicking the icon “Data”.

  • Open up a shell

  • Unmount the stick in terminal (nowhere else) with sudo diskutil unmountDisk /dev/diskX

Be sure you do not dd to a incorrect disk, e.g. your working HDD!

  • Copy the downloaded file with sudo dd bs=1m if=file.iso of=/dev/rdiskX

We use the r for uncooked in of=/dev/rdiskX to make the copy quicker. It is best to not be utilizing the s1 extensions: these are partitions on the disk, not the disk itself.

The USB stick then appears like this with diskutil listing:

/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *7.8 GB     disk1
   1:                       0xEF                         3.0 MB     disk1s2

sudo gdisk -l /dev/diskX will present this (aborting the query is feasible with ctrlC):

GPT fdisk (gdisk) model 1.0.1

Partition desk scan:
  MBR: MBR solely
  BSD: not current
  APM: not current
  GPT: current

Discovered legitimate MBR and GPT. Which do you need to use?
 1 - MBR
 2 - GPT
 3 - Create clean GPT
Your reply:

Lastly, sudo fdisk /dev/diskX will present

Disk: /dev/disk1    geometry: 942/255/63 [15138816 sectors]
Signature: 0xAA55
         Beginning       Ending
 #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
------------------------------------------------------------------------
 1: 00    0   0   0 -    0   0   0 [         0 -          0] unused      
 2: EF 1023 254  63 - 1023 254  63 [    535612 -       5948] 
 3: 00    0   0   0 -    0   0   0 [         0 -          0] unused      
 4: 00    0   0   0 -    0   0   0 [         0 -          0] unused 

OS X will present a dialog to Initialise…, Ignore or Unmount the USB stick when it’s put into the slot. Clicking Ignore is protected. I put the German screenshot in, I believe it is fairly clear.

dialog upon inserting USB stick

When booting the Mac now press alt or possibility and there needs to be an choice to boot to that is named EFI boot. It will carry up GParted Dwell.

However beware, there are some Macs (e.g. Macbook Professional 17″ Early 2011 that aren’t ready in any respect as well something different from USB than OS X).

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