Editing OS X files from Linux

[JohnFM3]

I need to edit my /Extra/com.apple.boot.plist back to arch=i386. My system is a dual boot with 64 bit Linux installed beside OS X. So I tried arch=x86_64, which now prevents the system from booting. Within linux, I can open the drive, but am unable to write the changes to the file.

 

Any suggestions on how to make the partition writeable?

 

The drive break down is 2 partitions for OS X (1 EFI an 1 HFS I think). An 2 partitions for Linux (both Ext4).

 

John

[JohnFM3]

After unmounting the mac partition, I mounted with the following command...

 

mount -t hfsplus -o force -o rw /dev/sda2 /media/test

 

... an I was able to save my changes to the file. I am going to reboot now an see what happens.

 

John

[JohnFM3]

So after editing the file, I was able to boot the system an felt it was safe to re install the network drivers. Now the system wont boot an I had to hard shutdown the Mac OS X system. Now I can only mount the OS X system drive as read only as linux complains about needing to run fsck.

 

Any ideas?

 

John

[JohnFM3]

So after installing some hfs tools, I was able to run fsck.hfsplus. Even though fsck reported failed, the partition mounted in rw which allowed me to make changes. I deleted the network drivers an did a verberose boot, an found it stopping on AppleAPCI??????? (dont recall the rest of the file). Was unable to load kext.

[jasjeet]

For next time, the com.apple.boot.plist is only there to save time not having to type flags in at the bootloader at each bootup.

So you could have just typed arch=i386 at bootloader and booted in, then made the permanent change to com.apple.boot.plist. You can use arch=i386 in the same way as -v, -x or -f flag at boot.

 

Try boot with -x and -f flags.