Some older Linux kernels had a file size limit of 1 GB due to a bug in UFS. Newer kernels (2.6.25.4 is known to work) allow bigger files.
On most distributions like Arch Linux, you won't have to configure anything but just install the right packets - for Arch Linux e.g you need udftools from the AUR.
Device Drivers ---> [*] Block devices ---> <M> Packet writing on CD / DVD media [ ] Enable write caching (experimental as of 2.6.25.4) Filesystems ---> CD-ROM/DVD filesystems ---> <M> UDF file system support
This is normally not needed unless you really want to clear a DVD-RAM or DVD-RW completely or if a medium causes problems.
This re-formats the medium and creates also the reserved sectors.
Note: Most DVD-RAMs are delivered preformated with an UDF V2.0 filesystem.
If you enabled packet writing in the kernel, you can make use of it like this:
Use 'pktsetup' to link the physical device with the packet writing module:
Windows uses the Logical Volume Identifier (LVID) as Laufwerksbezeichnung. Linux uses instead the Volume Identifier (vid) as Mediumbezeichnung. If you don't specify the VID then the name will be set to 'LinuxUDF'. The following UDF versions can be created: * Version 1.02 with --udfrev=0x0102 * Version 1.50 with --udfrev=0x0150 * Version 2.00 with --udfrev=0x0200 * Version 2.01 with --udfrev=0x0201 Compatibilität Linux - Windows Nicht jede Windows bzw. Linux Version kann jede UDF Version lesen und schreiben. Wenn Sie also zwischen Windows und Linux mit einer DVD Daten austauschen möchten, müssen Sie unbedingt auf die UDF Version achten. Ein neues DVD-RAM Medium ist ab Werk formatiert und wird fast immer mit UDF Version 2.0 ausgeliefert. Beschreiben Sie dieses Medium mit Linux 2.6, dann können Sie die DVD-RAM unter z.B. Windows 2000 ohne Zusatzsoftware nicht lesen.
* cdrwtool - Low-level drive management (e.g. set writing speed, format) * pktsetup - Set up a packet writing device (/dev/pktcdvd0) for a drive * wrudf - Maintains a UDF filesystem Folgende Kernel Module werden für ATAPI DVD-RAM Brenner benötigt: Device Drivers → Block devices → Packet writing on CD/DVD media (Optional) Device Drivers → ATA/ATAPI/MFM/RLL support → IDE/ATA-2 DISK support Device Drivers → ATA/ATAPI/MFM/RLL support → IDE/ATAPI CDROM support File systems → CD-ROM/DVD Filesystems → UDF file system support Mit folgendem Befehl können Sie auch ohne fstab bzw. HAL Eintrag das Medium als root User mounten: mount -t udf -o rw,noatime,async,user /dev/pktcdvd0 /media/dvdram (mit Packet Writing) mount -t udf -o rw,noatime,async,user /dev/dvdram /media/dvdram (ohne Packet Writing) ----------- 6. If you compiled it as a module, edit /etc/modules.d/aliases and add the following lines # vim /etc/modules.d/aliases alias block-major-97 pktcdvd 7. For newer kernels and udftools (1.0.0b-r4) # mkdir /dev/pktcdvd if there are any /dev/pktcdvd* character or block devices, just delete them! Formatting Disks For CD-RWs do $ cdrwtool -d /dev/scd0 -q For DVD+RW (and probably DVD-RW) do $ mkudffs /dev/pktcdvd/0 where "0" is the name you assigned during pktsetup, e.g. $ pktsetup 0 /dev/hdc If you get the error message "trying to change type of multiple extents" after trying to format a virgin dvd+rw, use dvd+rw-format e.g $ dvd+rw-format /dev/hdc this will "pre-format" the blank medium. After that, try mkudffs again.