While I generally hate to revive an old bugs, the HFS driver still doesn't handle CoreStorage well so I wanted to mention that it is possible to determine the appropriate value for 'sizelimit' when HFS is wrapped in a Core Storage volume: http://superuser.com/a/1088110/148367
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/889928 Title: hfsplus partition will not mount Status in linux package in Ubuntu: Invalid Bug description: I have a hard disk image of a Mac OS X system. macbook1.img is the entire disk, including partition table. hfs1.img is part of the entire disk from offset 209735680 onwards. hfs2.img is part of the entire disk from offset 209735680 onwards and then truncated according to the length of the partition. I tried to mount it with: mount -t hfsplus -o ro,loop,offset=209735680 macbook1.img /n1/macbook/fs Give this in dmesg [320231.611112] hfs: unable to find HFS+ superblock [320293.525940] hfs: invalid secondary volume header [320293.525944] hfs: unable to find HFS+ superblock [320629.619113] hfs: invalid secondary volume header After I use dd to extract just the hfsplus partition into a single file, it still fails to mount. Only when I truncate the image file to the exact length of the partition according to the partition table, does the mount command actually mount the image with: mount -t hfsplus -o ro,loop hfs2.img /n1/macbook/fs I conclude that there must be a bug in the Linux kernel hfsplus code, that wrongly locates the secondary volume header unless the image size is correct. Output of file: hfs1.img: Macintosh HFS Extended version 4 data last mounted by: 'HFSJ', created: Wed May 11 07:33:43 2011, last modified: Wed Oct 5 16:49:16 2011, last checked: Wed May 11 15:33:43 2011, block size: 4096, number of blocks: 14567302, free blocks: 4402186 hfs2.img: Macintosh HFS Extended version 4 data last mounted by: 'HFSJ', created: Wed May 11 08:33:43 2011, last modified: Wed Oct 5 16:49:16 2011, last checked: Wed May 11 15:33:43 2011, block size: 4096, number of blocks: 14567302, free blocks: 4402186 macbook1.img: x86 boot sector; partition 1: ID=0xee, starthead 254, startsector 1, 117210232 sectors, extended partition table (last)\011, code offset 0x0 output of parted: Disk /n1/macbook/macbook1.img: 60011642880B Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 20480B 209735679B 209715200B fat32 EFI system partition boot 2 209735680B 59877404671B 59667668992B hfs+ Customer ls -l -rw-r--r-- 1 root root 59801907200 2011-11-13 15:12 hfs1.img -rw-r--r-- 1 root root 59667668992 2011-11-13 16:46 hfs2.img -rw-r--r-- 1 root root 60011642880 2011-10-29 14:14 macbook1.img ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: udisks 1.0.4-1 Uname: Linux 3.1.0+ x86_64 ApportVersion: 1.23-0ubuntu4 Architecture: amd64 CustomUdevRuleFiles: plcbus.rules Date: Sun Nov 13 18:35:30 2011 MachineType: Dell Inc. Inspiron 1521 ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.1.0+ root=/dev/mapper/inspiron--hd-root ro SourcePackage: udisks Symptom: storage Title: Internal hard disk partition cannot be mounted manually UpgradeStatus: Upgraded to oneiric on 2011-10-14 (29 days ago) dmi.bios.date: 02/03/2008 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 0GU163 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA06:bd02/03/2008:svnDellInc.:pnInspiron1521:pvr:rvnDellInc.:rn0GU163:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Inspiron 1521 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/889928/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

