On 19 March 2014 19:29, Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote:
>
> On Mar 19, 2014, at 9:35 AM, Erik P. Olsen <epodata@xxxxxxxxx> wrote:
>
>> I have recently built a fedora 20 system using UEFI. And by and large it seems to be OK. I took care to allocate enough space on disk to allow for another system. It's all done on a Lenovo L430 with a 500GB large harddisk. I intent to use it for testing purposes and the UEFI based system is my first try of this type of "BIOS".
>>
>> I was very surprised to see the output from fdisk:
>>
>> Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
>> Units: sectors of 1 * 512 = 512 bytes
>> Sector size (logical/physical): 512 bytes / 512 bytes
>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>> Disklabel type: gpt
>> Disk identifier: 4547BE5B-EB5B-4756-8225-C346783B73AA
>>
>> Device Start End Size Type
>> /dev/sda1 2048 1026047 500M Microsoft basic data
>> /dev/sda2 1026048 205826047 97.7G Microsoft basic data
>> /dev/sda3 205826048 222111743 7.8G Linux swap
>> /dev/sda4 222111744 508831743 136.7G Microsoft basic data
>> /dev/sda5 508831744 509241343 200M EFI System
>> /dev/sda6 509241344 510265343 500M Microsoft basic data
>> /dev/sda7 510265344 526551039 7.8G Linux swap
>> /dev/sda8 526551040 631408639 50G Microsoft basic data
>> /dev/sda9 631408640 976773119 164.7G Microsoft basic data
>>
>> There doesn't seem to be much space left for yet another system :-(
>
> Well you have two systems on here it looks like. Two /boot partitions, two swaps, and four other partitions that are conceivably root and home, times 2. So maybe mount sda2, sda4, sda8, sda9 and see if you can find an /etc/fstab. I bet you find two, and it'll tell you, along with blkid, how these two systems are assembled.
>
>
>
>
>>
>> Doing a df -H yields:
>>
>> Filesystem Size Used Avail Use% Mounted on
>> /dev/sda8 53G 6.8G 44G 14% /
>> devtmpfs 4.1G 0 4.1G 0% /dev
>> tmpfs 4.1G 70k 4.1G 1% /dev/shm
>> tmpfs 4.1G 1.2M 4.1G 1% /run
>> tmpfs 4.1G 0 4.1G 0% /sys/fs/cgroup
>> tmpfs 4.1G 41k 4.1G 1% /tmp
>> /dev/sda9 174G 1.5G 164G 1% /home
>> /dev/sda6 500M 99M 371M 21% /boot
>> /dev/sda5 210M 10M 200M 5% /boot/efi
>>
>> And here it looks like I have ample space for a second system.
>
> You have a 2nd system. It's on /dev/sda[1234].
>
>>
>> What should I believe and what does Microsoft do on my system?
>
> You mean the "Microsoft basic data" partition type? Yeah, that. So with GPT partition scheme, the partition type isn't a 1 byte value anymore, it's 16 bytes. There are effectively unlimited partitiontypeGUIDs available, yet the parted project decided to use the existing Microsoft basic data partitiontypeGUID. I don't know why but it bends my brain trying to think of a good reason to have done that, when they did pick unique GUIDs for Linux swap, Linux (auto)RAID, and Linux LVM. But then used Microsoft basic data for "other" which includes rootfs, separate boot, var, LUKS, and home partitions. Madness.
>
> Some years ago Rod Smith, creator of gdisk, started setting a unique GUID for Linux general purpose use. Parted doesn't have an upstream release with that patch yet. However Fedora rawhide does carry it and will start using that partitiontypeGUID starting with Fedora 21. Much later than it should be, but at least it's going to happen, finally.
>
[...]
> And then recently there's an explosion of partitiontypeGUIDs, most of which aren't yet in parted, some of which are in gdisk. I'm not sure where fdisk is at with this as it just recently started supporting gpt partition scheme.
> http://www.freedesktop.org/wiki/Specifications/DiscoverablePartitionsSpec/
>
I've used fdisk (util-linux-2.24.1) recently to change the GPT partition type that Anaconda set for / and /home to the correct "Linux Filesystem", it worked without problems; although the fdisk man page doesn't mention this functionality at all (probably the man page hasn't been updated yet).
>
> Chris Murphy
>
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--
Ahmad Samir
>
> On Mar 19, 2014, at 9:35 AM, Erik P. Olsen <epodata@xxxxxxxxx> wrote:
>
>> I have recently built a fedora 20 system using UEFI. And by and large it seems to be OK. I took care to allocate enough space on disk to allow for another system. It's all done on a Lenovo L430 with a 500GB large harddisk. I intent to use it for testing purposes and the UEFI based system is my first try of this type of "BIOS".
>>
>> I was very surprised to see the output from fdisk:
>>
>> Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
>> Units: sectors of 1 * 512 = 512 bytes
>> Sector size (logical/physical): 512 bytes / 512 bytes
>> I/O size (minimum/optimal): 512 bytes / 512 bytes
>> Disklabel type: gpt
>> Disk identifier: 4547BE5B-EB5B-4756-8225-C346783B73AA
>>
>> Device Start End Size Type
>> /dev/sda1 2048 1026047 500M Microsoft basic data
>> /dev/sda2 1026048 205826047 97.7G Microsoft basic data
>> /dev/sda3 205826048 222111743 7.8G Linux swap
>> /dev/sda4 222111744 508831743 136.7G Microsoft basic data
>> /dev/sda5 508831744 509241343 200M EFI System
>> /dev/sda6 509241344 510265343 500M Microsoft basic data
>> /dev/sda7 510265344 526551039 7.8G Linux swap
>> /dev/sda8 526551040 631408639 50G Microsoft basic data
>> /dev/sda9 631408640 976773119 164.7G Microsoft basic data
>>
>> There doesn't seem to be much space left for yet another system :-(
>
> Well you have two systems on here it looks like. Two /boot partitions, two swaps, and four other partitions that are conceivably root and home, times 2. So maybe mount sda2, sda4, sda8, sda9 and see if you can find an /etc/fstab. I bet you find two, and it'll tell you, along with blkid, how these two systems are assembled.
>
>
>
>
>>
>> Doing a df -H yields:
>>
>> Filesystem Size Used Avail Use% Mounted on
>> /dev/sda8 53G 6.8G 44G 14% /
>> devtmpfs 4.1G 0 4.1G 0% /dev
>> tmpfs 4.1G 70k 4.1G 1% /dev/shm
>> tmpfs 4.1G 1.2M 4.1G 1% /run
>> tmpfs 4.1G 0 4.1G 0% /sys/fs/cgroup
>> tmpfs 4.1G 41k 4.1G 1% /tmp
>> /dev/sda9 174G 1.5G 164G 1% /home
>> /dev/sda6 500M 99M 371M 21% /boot
>> /dev/sda5 210M 10M 200M 5% /boot/efi
>>
>> And here it looks like I have ample space for a second system.
>
> You have a 2nd system. It's on /dev/sda[1234].
>
>>
>> What should I believe and what does Microsoft do on my system?
>
> You mean the "Microsoft basic data" partition type? Yeah, that. So with GPT partition scheme, the partition type isn't a 1 byte value anymore, it's 16 bytes. There are effectively unlimited partitiontypeGUIDs available, yet the parted project decided to use the existing Microsoft basic data partitiontypeGUID. I don't know why but it bends my brain trying to think of a good reason to have done that, when they did pick unique GUIDs for Linux swap, Linux (auto)RAID, and Linux LVM. But then used Microsoft basic data for "other" which includes rootfs, separate boot, var, LUKS, and home partitions. Madness.
>
> Some years ago Rod Smith, creator of gdisk, started setting a unique GUID for Linux general purpose use. Parted doesn't have an upstream release with that patch yet. However Fedora rawhide does carry it and will start using that partitiontypeGUID starting with Fedora 21. Much later than it should be, but at least it's going to happen, finally.
>
[...]
> And then recently there's an explosion of partitiontypeGUIDs, most of which aren't yet in parted, some of which are in gdisk. I'm not sure where fdisk is at with this as it just recently started supporting gpt partition scheme.
> http://www.freedesktop.org/wiki/Specifications/DiscoverablePartitionsSpec/
>
I've used fdisk (util-linux-2.24.1) recently to change the GPT partition type that Anaconda set for / and /home to the correct "Linux Filesystem", it worked without problems; although the fdisk man page doesn't mention this functionality at all (probably the man page hasn't been updated yet).
>
> Chris Murphy
>
> --
> users mailing list
> users@xxxxxxxxxxxxxxxxxxxxxxx
> To unsubscribe or change subscription options:
> https://admin.fedoraproject.org/mailman/listinfo/users
> Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
> Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
> Have a question? Ask away: http://ask.fedoraproject.org
--
Ahmad Samir
-- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
