I recount this as a)A cautionary tale b)A reminder to myself how to get out of this mess.<\/p>\n
Following a recent system upgrade and more memory, it was time to increase swap space for my LMDE Linux install.<\/p>\n
It was midnight, I’d been writing Android JAVA code all day and tired what could possibly go wrong….<\/p>\n
My swap partition was on \/dev\/sda5 and there was insufficient room either side to increase it. But there was a spare chunk of unallocated disk further up. “Hey” I thought, I’ll just move swap to \/dev\/sda12 and delete the old one that will only take a few minutes.<\/p>\n
Ahh I’d better \u00a0change the uuid of swap in fstab . Oh \u00a0and change \/etc\/initramfs-tools\/conf.d\/resume to point at the newly selected swap partition. So I did, and rebooted. Miserably failure number 1, forgot to update-initrams. Doh!<\/p>\n
(why oh why didnt I just change the uuid of the new swap to be the same as the old one<\/strong> that would have saved so much misery and the typing of this blog entry)<\/p>\n The change did indeed only take a few minutes, I rebooted the system and the boot hung at the resume stage.<\/p>\n At this point I thought, “Oh Belgium!” and went to sleep. (if “Oh Belgium”\u00a0doesn’t\u00a0make sense you need to read more books or listen to the correct radio comedy, does 42 mean\u00a0anything\u00a0to you?)<\/p>\n Thus next morning the following steps were taken.<\/p>\n Fortunately I have my systems configured with a couple of Linux Installs and Clonezilla partition(which makes doing whole system backups a lot more convenient).<\/p>\n At this point the plans were:<\/p>\n Plan A<\/p>\n As I wrote that down, my asleep brain realised actually an easier way would be<\/p>\n Plan B<\/p>\n Plan C<\/p>\n Plan C too fiddly for my patience so A and B \u00a0looked the most straightforward \u00a0but both needed me to know the UUID of the old version of swap.<\/p>\n Thats OK I thought it will be in my backup of fstab.<\/p>\n More misery followed involving, encrypted backups, downloading the wrong version of the encryption tools and finding my Centos boot didnt have the commands I wanted.<\/p>\n Anyway to change the swap uuid\u00a0, the usual way of changing disk uuid using tune2fs was a non starter as it doesnt like swap partitions.<\/p>\n So the way to do it is<\/p>\n mkswap \/dev\/sda5\u00a0-U theuuid<\/p>\n System now rebooted and back to the fun of Andriod and JAVA.<\/p>\n Next time I must just change the new swaps UUID instead, much easier.<\/p>\n ::sigh::<\/p>\n <\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" I recount this as a)A cautionary tale b)A reminder to myself how to get out of this mess. Following a recent system upgrade and more memory, it was time to increase swap space for my LMDE Linux install. It was … Continue reading \n
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