iSCSI boot?
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5th Mar, 2016, 07:02 PM
Post: #1
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iSCSI boot?
Hello,
I was wondering if anyone has experimented getting xbian to boot from an iSCSI target? I know Xbian can boot using NFS. I recently spent weeks getting a normal raspbian install to boot from an iSCSI target, I ended up having to use dracut to make the initramfs and recompile the kernel to include iSCSI support. Does anyone have any experience with this on Xbian? Does anyone know if the Xbian kernel has iSCSI support already built in? How much is the xbian kernel modified compared to the standard raspberry pi kernel? Could I just reuse my 4.1.17+ kernel with iSCSI support and my existing initramfs and just copy over the xbian rootfs to my iSCSI target or does the custom Xbian initramfs contain something essential? I don't mind not having the fancy Xbian boot splash. Would the normal kernel be a major performance hit to Xbian compared to the Xbian optimised? I am using a RaspberryPi B 512MB ram. What would I have to add to the Xbian initramfs scripts to get it to mount an iSCSI rootfs? My iSCSI targets sit on a FreeNAS machine so it has ZFS with snapshots and so on, would it be best to still use BTRFS or migrate over to Ext4 since the underlying ZFS takes care of all the snapshots and error correction? Thank you for any ideas on the matter! |
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6th Mar, 2016, 12:42 AM
Post: #2
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RE: iSCSI boot?
Huh, a lot of questions
(5th Mar, 2016 07:02 PM)degeulars Wrote: I was wondering if anyone has experimented getting xbian to boot from an iSCSI target? I know XbianNo yet. I'm using iSCSI and booting diskless via PXE from an openSUSE client, but it was a real pain to get it work Done this many years ago. Quote:I recently spent weeks getting a normal raspbian install to boot from an iSCSI target, I ended upNot me Quote:Does anyone know if the Xbian kernel has iSCSI support already built in?A short view into .config tells me iSCSI is not there Quote:How much is the xbian kernel modified compared to the standard raspberry pi kernel?LZ4 support for BTRFS is added BFQ is added You can have a look to the additions here (latest 6 commits) Quote:Could I just reuse my 4.1.17+ kernel with iSCSI support and my existing initramfs and just copy overwith BTRFS compiled in kernel and added LZ4 support for BTRFS it should work Quote:What would I have to add to the Xbian initramfs scripts to get it to mount an iSCSI rootfs?Don't know Quote:My iSCSI targets sit on a FreeNAS machine so it has ZFS with snapshots and so on, would it be best toI'm not sure if XBian still works with an ext4 root fs |
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