On Thu, Nov 15, 2018 at 12:27:02AM +0200, Marc Stenson wrote: > Hello, > > While parted 2.3 had no issues with whatever was in the first 446 bytes of > the MBR and only looked at the partition table, newer versions such as 3.2 > seem to be thrown by unusual boot code (e.g. Grub4DOS) and either show the > entire disk as unallocated space or as one big volume/partition with the > file system of the first volume. This is despite the partition table being > fully compliant and happily read by fdisk and sfdisk. > > This may be a "feature" rather than a bug. Please pardon my ignorance, > perhaps newer partition table schemes require the first 446 bits to be > parsed. However it could save someone many hours of frustration if this was > noted prominently in the documentation. > > In my case It was fixed with a simple: > dd if=/usr/lib/syslinux/mbr/mbr.bin of=/dev/sdb bs=446 count=1 > after taking the requisite backups and a deep breath.
Can you explain steps to reproduce this, or post the first 1M of your disk someplace? -- Brian C. Lane (PST8PDT)