Re: [Staffslug] File System Ext2 On DVD+RW
EXT3 is the -j (journal) flag of EXT2... if you're really interested
in file systems look at Btrfs - it's a promising one for the future...
reiser will eventually become a dead fs as the creator is serving life
in jail (i reckon that'll have been the nail in the coffin of the fs!)
if anyone's interested... i believe the guy murdered his family or something?
Andrew
2008/12/21 Kevanf1 <kevanf1(a)gmail.com>:
2008/12/20 Frank Mitchell
<mitchell(a)wyatt672earp.force9.co.uk>:
> Hi:
>
> Recently I noticed Sun Solaris used CDs with a UFS File System. So I decided
> to try UFS and Ext2 on Optical Disks. It should work on CD-RW, but I had
> spare DVD+RW disks, so I decided to get more ambitious.
>
> Note that DVDs use 2048-byte Sectors like CDs, but they're handled in
> Error-Correcting Blocks of 16. You can't expect DVD-RW to work, because
> DVD-RW only writes complete ECC Blocks. But DVD+RW (like DVD-RAM) can
> update individual Sectors.
>
> FreeBSD UFS1 wouldn't work this way. The FreeBSD Handbook gives instructions
> for DVD-RAM, and obviously DVD-RAM has a different layout. But OpenSUSE Linux
> seems okay with Ext2 on DVD+RW. I copied a large Subtree and checked the
> result using diff -qr.
>
> Does anybody have thoughts about this idea? Like: Any disadvantages which
> haven't occurred to me? Obviously if you're recording Personal Information
on
> Removable Media it might be preferable to use a format which isn't readable
> under Windows.
>
> Faictz Ce Que Vouldras: Frank Mitchell
Is Ext2 journalled or was that Ext3? Just thinking it might wear out
an RW disk faster if a journalled system was used. If Ext2 is not
journalled then why not use it? Unless it is less efficient than UFS?
Sorry answered with more questions...
--
==============================================
Kevan Farmer
Linux user #373362
Staffordshire
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