Some issues: 1) Cylinder 0 is the fastest for data access since it's on the outside of the disk where more data rotates under the head on each revolution.
2) I have set up partitions starting from Cylinder 1 before in violation of the rule and it still worked. Therefore, I would like to know why this worked if the rule does not agree. --- Frans Pop <[EMAIL PROTECTED]> wrote: > On Thursday 28 April 2005 02:35, Jurij Smakov wrote: > > On Thu, 28 Apr 2005, Wiktor Wandachowicz wrote: > > > Frans Pop wrote: > > >> With sun-disklabel you are not allowed to put swap or RAID or > LVM at > > >> the start of the disk. ext2/ext3 are OK. > > > > Frans, if you are referring to #283303, I thought that we've fixed > it. > > At least the bug is marked 'fixed' when version 62 of partman has > been > > uploaded, and I remember testing it and confirming that the bug is > > gone. Version in RC3 is 63, so it should be fixed there too. > > I've read through that bug and I think it is related, but does not > cover > the whole issue. > The basic problem AFAICT is that a linux swap partition does not > treat the > first sectors of a partition as special. I think that is reasonable > as > booting from a swap partition is, in general, nonsense. Ext2/3 _does_ > > reserve the first sectors of the partition for bootloader etc, so > putting > that at the start of the disk is OK. > See also the 2nd para under "DESCRIPTION" of silo(8) manpage. > > Please read [1]: > - the 1st partition is required to start on sector 0; > - bootloader and disklabel info is written to the first sectors of > the disk; > - _all sectors_ of a linux swap partition are used for swap and so > may be overwritten when the partition is formatted or used. > Conclusion: don't put swap (or RAID or LVM) at the beginning of a Sun > > disklabel disk! > > The logical thing to do is to put either the / partition or a small > /boot > partition at the start of a disk for Sparc systems. > > This is also confirmed by the last postings to #283303. I think the > patch > in that bug only resolves some _symptoms_ of this issue, but does not > > address the real problem. > > The MSDOS disklabel apparently automatically reserves the first > sectors of > a disk for the MBR, therefore having swap on the 1st partition of a > MSDOS > disc is not a problem. > > [1] > http://d-i.alioth.debian.org/manual/en.sparc/apbs05.html#id2538449 > > Cheers, > FJP > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
