Re: Problems with hfsprogs on G5 Power Macs
Hi Mathieu,
On 1/4/19 08:51, Mathieu Malaterre wrote:
On Thu, Jan 3, 2019 at 5:54 PM Frank Scheiner <frank.scheiner@web.de> wrote:
On 1/3/19 12:10, Mathieu Malaterre wrote:
The way you describe this bug makes me think of a 64bits vs 32bits
issue. Next time this happen to you, use a foreign powerpc
installation to run ppc32 binary on your G5.
That's a good idea and I think we don't even have to wait for the next
time this issue hits me, as even for a clean HFS the `fsck.hfs`
segfaults. The significance of the result of such a test will not be the
same as for checking a borked HFS, but could show a tendency.
Right ! Good point.
Say, will a powerpc64 kernel from arch ppc64 work with a userland from
arch powerpc or do I need the powerpc64 kernel from arch powerpc? Or are
these kernels actually identical?
If I understand your sentence, the answer is yes: they are identical.
The only (main?) difference with amd64/i386 world is that you cannot
run a ppc32 kernel on a ppc64 machine.
Ok. It works to use the powerpc64 kernel from arch ppc64 and a userland
from arch powerpc with kernel modules of the powerpc64 kernel of arch
powerpc. Hence I assume the powerpc64 kernels of arch ppc64 and powerpc
are actually identical.
Back to the testing of the powerpc version of `fsck.hfs`. I first
checked the HFS bootstrap FS on a Mac mini G4 to have a known state for
later testing:
```
root@mac-mini:~# fsck.hfs -d -f /dev/sdb2
** /dev/sdb2
Using cacheBlockSize=32K cacheTotalBlock=1024 cacheSize=32768K.
** Checking HFS volume.
** Checking Extents Overflow file.
** Checking Catalog file.
Reserved fields in the catalog record have incorrect data
(4, 185)
Reserved fields in the catalog record have incorrect data
(4, 2)
Reserved fields in the catalog record have incorrect data
(4, 2)
** Checking Catalog hierarchy.
** Checking volume bitmap.
** Checking volume information.
Verify Status: VIStat = 0x0000, ABTStat = 0x0000 EBTStat = 0x0000
CBTStat = 0x0200 CatStat = 0x0000
** Repairing volume.
** Rechecking volume.
** Checking HFS volume.
** Checking Extents Overflow file.
** Checking Catalog file.
** Checking Catalog hierarchy.
** Checking volume bitmap.
** Checking volume information.
** The volume bootstrap was repaired successfully.
root@mac-mini:~# echo $?
0
root@mac-mini:~# fsck.hfs -d -f /dev/sdb2
** /dev/sdb2
Using cacheBlockSize=32K cacheTotalBlock=1024 cacheSize=32768K.
** Checking HFS volume.
** Checking Extents Overflow file.
** Checking Catalog file.
** Checking Catalog hierarchy.
** Checking volume bitmap.
** Checking volume information.
** The volume bootstrap appears to be OK.
root@mac-mini:~# echo $?
0
```
...then tested the ppc64 version on the 11,2 G5 with the expected result
(segfault):
```
root@powermac-g5:~# dpkg -l hfsprogs
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-===========================================
ii hfsprogs 332.25-11+b3 ppc64 mkfs and fsck for HFS and
HFS+ file systems
root@powermac-g5:~# file /sbin/fsck.hfs
/sbin/fsck.hfs: symbolic link to fsck.hfsplus
root@powermac-g5:~# file /sbin/fsck.hfsplus
/sbin/fsck.hfsplus: ELF 64-bit MSB executable, 64-bit PowerPC or cisco
7500, version 1 (SYSV), dynamically linked, interpreter
/lib64/ld64.so.1, for GNU/Linux 3.2.0,
BuildID[sha1]=9e14a88ea04ea0fc8a89f3d79b039cf1daa6f3ed, stripped
root@powermac-g5:~# fsck.hfs -d -f /dev/sda2
** /dev/sda2
Using cacheBlockSize=32K cacheTotalBlock=1024 cacheSize=32768K.
** Checking HFS volume.
Segmentation fault
```
But then testing with the powerpc version on the 11,2 G5 actually seems
to work:
```
root@powermac-g5:~# dpkg -l hfsprogs
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-===========================================
ii hfsprogs 332.25-11+b2 powerpc mkfs and fsck for HFS and
HFS+ file systems
root@powermac-g5:~# file /sbin/fsck.hfs
/sbin/fsck.hfs: symbolic link to fsck.hfsplus
root@powermac-g5:~# file /sbin/fsck.hfsplus
/sbin/fsck.hfsplus: ELF 32-bit MSB executable, PowerPC or cisco 4500,
version 1 (SYSV), dynamically linked, interpreter /lib/ld.so.1, for
GNU/Linux 3.2.0, BuildID[sha1]=ce95122bcb0b56e4c1dc1b256cdf24135f6e4cad,
stripped
root@powermac-g5:~# fsck.hfs -d -f /dev/sda2
** /dev/sda2
Using cacheBlockSize=32K cacheTotalBlock=1024 cacheSize=32768K.
** Checking HFS volume.
** Checking Extents Overflow file.
** Checking Catalog file.
** Checking Catalog hierarchy.
** Checking volume bitmap.
** Checking volume information.
** The volume bootstrap appears to be OK.
root@powermac-g5:~# echo $?
0
```
So how do we proceed from here?
Cheers,
Frank
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