On Monday, September 21, 2015, 3:52:51 PM, Phil Susi wrote: > On 8/28/2015 4:48 PM, Al Dunsmuir wrote: >> I'm working on getting the Fedora ppc64 secondary arch install process >> working again for Mac G5 machines. >> >> As part of this, I'm developing some patches to improve support for >> mac (Apple Partition Map) disk volumes to parted and GParted. This >> includes support in libparted for: >> - A new "map" flag (PED_PARTITION_APPLE_PARTITION_MAP)
I've revised the flag name to PED_PARTITON_MAP in the latest version. This brings it in line with PED_PARTITION_SWAP as a generic flag. Just as "swap" is a generic type that is set for the linux and bsd swap filesystem types, the "map" flag indicates the partition contains information used to map other partitions on the volume. >> - A new "apple_map" filesystem type >> >> This means GParted see the Apple_partition_map partition as an >> "Unknown" filesystem, and prevents users from accidently deleting or >> reformatting that partition. > I'm having trouble seeing what these will be used for, could you explain > a bit more? Also why do you want to change the way it works? You say > that the unknown filesystem makes gparted not let you screw it up, but > that's a good thing isn't it? Amazing how dropping a word or phrase can make a difference 8^) I meant that programs such as GParted, parted, blivet-gui and Anaconda _currently_ see the mac volume "Apple_partition_map" partition as an anonymous partition with no label, flags or filesystem type. GParted shows this as "unknown" and allows the user to delete or reformat that partition - which ruins the day of all active partitions on that mac volume. Fedora's Anaconda/blivit/etc currently allow the same shot to the foot. When installing (or updating) Linux on a system where you want to dual boot with an existing OS/X partition, that anonymous partition presents a tempting target for deletion to make more free space. Adding the "map" flag and recognizing the "apple-map" fileystem type enabled me to update GParted to inhibit deletion, reformatting, or any change to that partition's flags. I also updated GParted to display labels for unmounted hfs/hfs+ partitions. I'm trying to find time this weekend (when not doing fall yard construction) to finalize the GParted (& parted) changes - all that's left is that Gparted does not access/see the "apple-map" filesystem used/unused sector counts and displays an annoying warning symbol and message. I've got the pyparted changes matching my current parted changes ready as well, so will be able to start the changes to the Fedora install suite. It's not going to make the Fedora 23 beta/GA, but I should be done for F24 (and have a retrofitted G5 Mac netinst isos for F20, F22 and F23 that work). Al
