If you're using the machine in the intended Voyage read-only mode, then no, ext4 doesn't have much use. (It supports the TRIM function for SSDs, but if the disk is read-only then no files are being deleted, the TRIM function isn't being used.)
If you want a writable partition, then ext4 has some very powerful barrier mechanisms that provides fairly reliable disk writes in a bad environment. Voyage already supports ext4 partitions as long as it doesn't include /boot. If you want a writable root partition, then ext4 has a strong case. But then there is less of a reason to use Voyage. Joshua On Oct 16, 2012, at 3:48 AM, Michael Fung wrote: > Is there any points in using ext4 for /boot or even the root fs in the alix > environment? I hate grub2. > > I only use ext4 on my usb HDD. > > Rgds, > Michael > > On 10/15/2012 2:16 PM, Kim-man 'Punky' TSE wrote: >> Hi all, >> >> To support ext4, I think there are 2 options: >> >> 1. modify voyage-update related scripts to support grub2, or >> 2. At installation, upgrade grub to grub2. >> >> I really don't want to touch existing grub1 code for installation. I >> would rather run upgrade-from-grub-legacy at installation. >> >> http://wiki.debian.org/Grub#Upgrading_from_v1_to_v2 >> >> Any volunteer? >> >> Regards, >> Punky >> >> On 10/15/2012 10:44 AM, Joshua Anhalt wrote: >>> Grub 1 (the default in Voyage) does not supporting booting to an ext4 >>> filesystem >>> <https://ext4.wiki.kernel.org/index.php/Ext4_Howto#Booting_from_an_ext4_filesystem>. >>> (There are some efforts to support that, but I don't think those >>> patches are present in the current Voyage grub1.) >>> >>> You can install a recent grub2, or make a separate ext2/3 formatted >>> /boot partition. >>> >>> Joshua >>> >>> On Oct 13, 2012, at 5:51 AM, kmpir...@ece.upatras.gr >>> <mailto:kmpir...@ece.upatras.gr> wrote: >>> >>>> Thank you for your prompt reply. Using only one partition solved the >>>> problem. The OS loads nicely. >>>> However, is it possible to use a journaling file system like ext4 >>>> instead of ext2? >>>> I tried altering format-cf.sh and use mkfs.ext4 instead of mkfs.ext2 >>>> and again, the grub> command prompt appears. >>>> >>>> The reason I prefer ext4 is to avoid inode reference problems after >>>> sudden power-offs. Do you think that ext2 along with the read-only >>>> mounting is enough? If so, after I shrink the main ext2 partition, >>>> can I make an ext4 partition in the remaining space? I need >>>> read-write access to the second partition. >>>> >>>> Regards, >>>> Kostas Birkos >>>> >>>> >>>> >>>> Arun Khan wrote: >>>>> On Fri, Oct 12, 2012 at 11:25 PM, >>>>> <kmpir...@ece.upatras.gr <mailto:kmpir...@ece.upatras.gr>> wrote: >>>>>> Hello, >>>>>> >>>>>> I have a problem while trying to install Voyage 0.9 in a CF card. >>>>>> Using GParted in Ubuntu 12.04, I created 2 primary partitions in >>>>>> the CF. >>>>>> 2 GB for the OS and another 6 GB for storage. During the installation >>>>>> process, I select the first partition to install Voyage. >>>>> >>>>> Rather than pre-partition the CF hard disk, let the VL installer >>>>> choose the *entire* CF disk for the first partition. >>>>> After completing the installation, you can shrink the first partition >>>>> to your desired size and free up the rest. >>>>> >>>>> Also update the grub installation on the CF card. >>>>> >>>>> Let us know if this solves your problem. >>>>> >>>>> -- Arun Khan >>>>> >>>>> _______________________________________________ >>>>> Voyage-linux mailing list >>>>> Voyage-linux@list.voyage.hk <mailto:Voyage-linux@list.voyage.hk> >>>>> http://list.voyage.hk/mailman/listinfo/voyage-linux >>>>> >>>> >>>> _______________________________________________ >>>> Voyage-linux mailing list >>>> Voyage-linux@list.voyage.hk <mailto:Voyage-linux@list.voyage.hk> >>>> http://list.voyage.hk/mailman/listinfo/voyage-linux >>>> >>> >>> >>> >>> _______________________________________________ >>> Voyage-linux mailing list >>> Voyage-linux@list.voyage.hk >>> http://list.voyage.hk/mailman/listinfo/voyage-linux >> >> > > _______________________________________________ > Voyage-linux mailing list > Voyage-linux@list.voyage.hk > http://list.voyage.hk/mailman/listinfo/voyage-linux > _______________________________________________ Voyage-linux mailing list Voyage-linux@list.voyage.hk http://list.voyage.hk/mailman/listinfo/voyage-linux
