Re: DD bs=4M option on USB mem-stick creates false format
- Date: Mon, 27 Mar 2017 21:47:42 +0200
- From: "Thomas Schmitt" <scdbackup@xxxxxxx>
- Subject: Re: DD bs=4M option on USB mem-stick creates false format
> > - APM partition table with block size 2048 (look here for a suspect !)
Pascal Hambourg wrote:
> For whatever reason, libarted-based tools choose to consider that bogus
> Apple partition table.
> Bottom line : libparted-based tools do not handle ISO-hybrid images
> correctly. Do not use them with such images.
But why on the first hand does debian-cd instruct xorriso to create APM ?
(By option -isohybrid-apm-hfsplus)
I understand from Matthew Garrett's blog and from discussions with
GRUB developer Vladimir Serbinenko that Macs which expect APM also
expect HFS+ with "blessed" files and not FAT with EFI files.
The Fedora ISOs have HFS+ images. grub-mkrescue ISOs can have HFS+.
But Debian and Ubuntu ISOs only have the EFI FAT filessystem image
in their APM. Is there any Mac known which boots only by this APM ?
Have a nice day :)