/srv/irclogs.ubuntu.com/2017/05/22/#ubuntu-mate.txt

lhtdhey, do you known how can I check that the kernel is compatible with GPT guid support for partitions larger than 2To ?09:23
alkisgAll linux kernels support gpt09:24
lhtdalkisg, this page says I might need to recompile the kernel https://www.cyberciti.biz/tips/fdisk-unable-to-create-partition-greater-2tb.html09:32
alkisglhtd: fdisk doesn't support gpt; use gparted instead09:33
lhtdI have been having problems with the GPT partition table which gets corrupted everytime I reboot09:33
lhtdalkisg, on it right now09:33
lhtdI need to reboot to update the kernel after formating my disk. brb09:35
lhtdb09:38
lhtdI cannot remove the MBR protective partition table09:40
* lhtd rebooting to see if gparted did the thing09:41
lhtdWell.. GPT partition table is not corrupted anymore, but It will re-corrupt itself, it has been doing that for about 4 months. MBR protective partition table is still present.09:44
alkisglhtd: is that an ssd?09:45
lhtdIs there a recurrent problem trying to have a HDD with a bigger partition than 2To in ubuntu mate ?09:45
lhtdnope it's an HDD of 3 To09:45
lhtdonly to store/treat big chuncks of data09:45
alkisgDo you see any read/write issues in the output of the `dmesg` command?09:45
alkisgThere's no problem with HDDs larger than 3 TB in Ubuntu that I know of, no.09:47
alkisgThe MBR protective partition is a good, normal thing to have09:47
alkisgWhere is that disk connected, e.g. in normal pc, or some weird pc that could have "recovery settings" etc messing up the gpt on purpose?09:47
lhtdMost help sites like ubuntu forums and stackoverflow they say that to get partitions bigger than 2To you need to remove the MBR partition table and recompile the kernel with an extra option09:48
alkisgI've seen laptops write to gpt/mbr when the user selected the recovery mode...09:48
lhtdI have a normal desktop, a bit beefed up because is the one for my work09:48
lhtd`dmesg` says"Alternate GPT is invalid, using primary GPT09:49
alkisgThe only site you showed us that says that, is a 2007 page talking about fdisk, which doesn't support gpt anyway09:49
alkisgWhere have you seen that you need to compile kernels etc?09:49
lhtdthe page is 2017, not 200709:50
alkisg https://www.cyberciti.biz/tips/fdisk-unable-to-create-partition-greater-2tb.html => November 6, 200709:51
lhtdthis one from 2009 talks about the limitations of MBR https://www.ibm.com/developerworks/library/l-gpt/09:51
alkisgI'm sure it says that MBR is limited09:52
alkisgIs this somehow related to you?09:52
lhtdalkisg, true, I got another page form cyberciti. this one to delete mbr https://www.cyberciti.biz/faq/linux-clearing-out-master-boot-record-dd-command/09:52
alkisgOK so far you showed 3 pages that do not say that gpt has a partition limit of 2 tb09:53
alkisgDid you actually see what you said anywhere?09:53
lhtdalkisg, I started working on this computer since February and every 2 weeks the GPT partition grid gets damaged. So i have to back up the data to use that HDD09:53
alkisgThat part, I can understand and believe you09:53
alkisgBut the assumption that gpt doesn't support 2 tb partitions, or that you need a custom compiled kernel, no, I can't believe you there09:54
lhtdI did, last time I formatted the HDD last month - i'm browsing my history09:54
alkisgSo, I'm saying that you're looking in the wrong direction09:54
lhtdIt's quite probable alkisg.09:54
lhtdMaybe I should try to find why the GPT gets damaged so often09:55
alkisgRight09:55
alkisgFirst, think of what you have (software etc) that might be writing to gpt09:56
lhtdWell, last time I formated I left the HDD empty and unused with an MBR protective and a GPT partition tables. Today I needed it to put some data in it and I cannot write in it because the GPT is damaged09:57
alkisgDid you format with fdisk last time?09:58
lhtdSo.. I cannot think of any software writing to GPT since it hasn't been used at all09:58
lhtdnope gparted09:58
alkisgAnd can you reproduce that, by e.g. leaving the disk for 1 minute, then using it at next boot?09:59
alkisgOr does it need to be left for months?09:59
alkisgBtw, you should be worrying about this: (12:49:10 μμ) lhtd: `dmesg` says"Alternate GPT is invalid, using primary GPT10:00
alkisgDo a proper formatting that would result in dmesg not complaining about your gpt10:00
alkisgMy `dmesg | grep -i gpt` show nothing at all10:00
lhtdI don't know how to reproduce it. I've been trying to figure that out.10:01
lhtdOk, the partition table just got damaged again. I think it's gets poorly enabled when rebooting the computer.10:02
lhtd`dmesg | grep -i gpt` =   Alternate GPT is invalid, using primary GPT.10:03
alkisgThat would mean it was not properly formatted10:03
lhtdOk, I'll re-format my hdd10:03
lhtddam... I thought that part was ok10:03
* lhtd back to it. 10:04
lhtdthanks alkisg I'll let you know how it goes10:04
alkisglhtd: keep in mind that your disk might be corrupted10:04
alkisgI.e. hardware disk failure10:04
alkisgCheck dmesg for read/write ATA errors etc10:05
lhtdI usually format it with gparted before doing anything with it10:05
lhtdAlright !10:05
alkisglhtd: did you ever use raid in it?10:05
alkisgLike mdraid or something?10:05
lhtdnot that I'm aware of, maybe the employee who used it before me, but i cannot be sure10:05
lhtdI got this computer, formatted all drives and got on ubuntu-mate to start working10:06
lhtd(there are 3 drives, 1 ssd for boot, 1 ssd for complex data and 1 hdd for big files)10:07
alkisgOK, try a good clean formatting. testdisk also does a good work for cleaning up gpt10:07
* alkisg waves, later...10:07
* lhtd formats and goes to a meeting. Thanks alkisg. 10:09
kuntalwant know about ibus13:26
popohi,How do i install conkyForecast, in ubuntu17.04?13:40
popoanybody in??13:44
Ntemishello15:09
Ntemisi am facing flickering issues in terminal after upgrade to 1.1815:09
Ntemisalso desktop some times is unclickable with left mouse15:10
Ntemisselecting a folder or a document is no-op15:10
nomic.z17:50
nomicz.z.18:06

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