Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!munnari.oz.au!cluster!metro!natmlab.dap.csiro.au!ditsyda!evans From: evans@ditsyda.oz (Bruce Evans) Newsgroups: comp.os.minix Subject: Re: Mounting old file systems under 1.5.0 Message-ID: <2402@ditsyda.oz> Date: 16 Jan 90 04:41:36 GMT References: <1789@bruce.OZ> Reply-To: evans@ditsyda.oz (Bruce Evans) Organization: CSIRO DIT Sydney, Australia Lines: 31 In article <1789@bruce.OZ> mark@bruce.OZ (Mark Goodwin) writes: >From article by rbthomas@frogpond.rutgers.edu (Rick Thomas): >> >> How do you check? What do you look for? Where? >> Inquiring minds want to know... >> Rick > >Use the 'p' command of fdisk. The 'base' cylinder Everyone should run fdisk and see what it says. It is very safe to run it read-only. This is done by making /dev/hd0 readable to your login account but not writable. Please report any inconsistencies. There will be an improved version of fdisk in 1.5.1, with better messages about the odd/even stuff. >for each partition is either odd or even. If it's *odd*, then a pre-1.5.0 >file system residing on that partition needs to be changed to type 128 >(for mount under 1.5.0). If it's *even*, you're in luck (apparently). However, if the partition starts on an odd boundary and has a post-1.5.0 file system, type 0x80 will not work. Don't use type 0x80 for new file systems. Use 0x81. If this clashes with another system, use any "unknown" type. For old file systems, 0x80 is not the best fix and really shouldn't have been in 1.5.0. Use the 'B' command to add 1 to the base partition in the partition table. The 1.5.1 fdisk has better messages about this too. -- Bruce Evans evans@ditsyda.oz.au