[HELP] Can't Boot Back to OSX After YDL3 Install & ProblemUpdating pdisk

[Natalia Portillo]

Fdisk uses the MBR partition scheme.

You MUST use pdisk, pdisk /dev/hda.

> -----Mensaje original-----
> De: yellowdog-general-admin@lists.terrasoftsolutions.com 
> [mailto:yellowdog-general-admin@lists.terrasoftsolutions.com] 
> En nombre de Mark Srebnik
> Enviado el: viernes, 27 de junio de 2003 23:36
> Para: yellowdog-general@lists.terrasoftsolutions.com
> Asunto: [HELP] Can't Boot Back to OSX After YDL3 Install & 
> ProblemUpdating pdisk
> 
> 
> 	Hi all,
> 
> First post to this group....could really use someone's help!
> 
> Installed YDL3 this morning on the new hard drive I installed on my
> PMG4. Installed new drive as master and moved my old drive to 
> be slave.
> 
> Created 2 partitions using Apple Drive Setup so that I could 
> use part of
> drive for Mac stuff.
> 
> Then ran YDL installer and DiskDruid to setup partitions for YDL.
> 
> Then completed YDL install process and booted OK into YDL3. 
> All is well
> there and I'm emailing from Evolution in YDL.
> 
> Problem started when I tried rebooting into OSX10.2.6....
> 
> First I see the usual grey screen with Apple icon but then I get a
> circle with slash through it.
> 
> Forget how but I can boot into my OS9 partition on old drive. However,
> while I can move the cursor on screen my trackball buttons don't work
> and I can't do anything.
> 
> Found post from April from Dan Burcaw titled 'Can I get my
> Apple_partition_map partition back?' and tried following those
> instructions. 
> 
> However, problem is I can't seem to get proper identification of drive
> partition to be updated, in order for pdisk update to take place.
> 
> Below is my latest terminal output for review.
> 
> You can see that part of problem I think is related to the message 
> 'Disk /dev/hda doesn't contain a valid partition table'. 
> 
> Hope someone can please advise....really need to get back into my OSX
> partition to do some work!
> 
> fdisk: invalid option -- p
> 
> Usage: fdisk [-b SSZ] [-u] DISK     Change partition table
>        fdisk -l [-b SSZ] [-u] DISK  List partition table(s)
>        fdisk -s PARTITION           Give partition size(s) in blocks
>        fdisk -v                     Give fdisk version
> Here DISK is something like /dev/hdb or /dev/sda
> and PARTITION is something like /dev/hda7
> -u: give Start and End in sector (instead of cylinder) units
> -b 2048: (for certain MO disks) use 2048-byte sectors
> [root@localhost root]# fdisk -l
> 
> Disk /dev/hda: 120.0 GB, 120034123776 bytes
> 255 heads, 63 sectors/track, 14593 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> 
> Disk /dev/hda doesn't contain a valid partition table
> 
> Disk /dev/hdb: 122.9 GB, 122942324736 bytes
> 16 heads, 63 sectors/track, 238216 cylinders
> Units = cylinders of 1008 * 512 = 516096 bytes
> 
> Disk /dev/hdb doesn't contain a valid partition table
> [root@localhost root]#
> [root@localhost root]#
> [root@localhost root]# /sbin/pdisk hda
> pdisk: can't open file 'hda'  (No such file or directory)
> [root@localhost root]# fdisk -s
> 
> Usage: fdisk [-b SSZ] [-u] DISK     Change partition table
>        fdisk -l [-b SSZ] [-u] DISK  List partition table(s)
>        fdisk -s PARTITION           Give partition size(s) in blocks
>        fdisk -v                     Give fdisk version
> Here DISK is something like /dev/hdb or /dev/sda
> and PARTITION is something like /dev/hda7
> -u: give Start and End in sector (instead of cylinder) units
> -b 2048: (for certain MO disks) use 2048-byte sectors
> [root@localhost root]#
> 
> 
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